CN114855658B

CN114855658B - Movable improved assembled box culvert template and construction method thereof

Info

Publication number: CN114855658B
Application number: CN202210637484.5A
Authority: CN
Inventors: 王小龙; 孙立君; 刘学义; 孙利宏; 赵宇成; 岳志强; 辛懿韬; 刘嘉伟; 潘存军; 白慧文; 段垒文; 高润拴
Original assignee: No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Current assignee: No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2024-08-02
Anticipated expiration: 2042-06-08
Also published as: CN114855658A

Abstract

The invention relates to a movable improved assembled box culvert template and a construction method thereof, wherein the movable improved assembled box culvert template comprises a threaded pull rod, a bolt and a nut, and further comprises a movable base platform, an outer template, an inner template, a concave end template and a convex end template, wherein the movable base platform is a base template of a wave-building box culvert body, a health maintenance and movable pedestal, and the upper end of the movable base platform is provided with the outer template, the inner template, the concave end template and the convex end template of the wave-building box culvert body and a built health maintenance shed.

Description

Movable improved assembled box culvert template and construction method thereof

Technical Field

The invention relates to a movable improved assembled box culvert template and a construction method thereof.

Background

Along with the continuous perfection of highways and municipal road networks, the underground assembled box-type box culvert structure in the fields of highways and municipal engineering is increasingly applied to construction, and particularly, the annual effective construction time is short when the structure is constructed in northern China. The assembled box-type box culvert is transported to a construction site or cast-in-place concrete cover plate box culvert in an underground pipeline pit of the construction site after prefabricated finished products in a prefabricated part factory are adopted in situ.

The prefabricated finished products are sent to a construction site for splicing after being prefabricated in a prefabricated part factory, the construction site is located in a pre-development area and lacks infrastructure such as roads, temporary roads are paved from the prefabricated part factory to the movable construction site for the transportation vehicles for loading and assembling box-type box culverts to pass, and therefore the transportation cost is relatively high in the arrangement of the assembled box-type box culverts.

The cast-in-place concrete cover plate box culvert can be subjected to the next working procedure only by binding reinforcing steel bars, supporting the formwork, pouring concrete and demolding and curing, and has the advantages of limited construction conditions, long construction period, complex process, high construction cost, low speed and low efficiency.

The authorized bulletin number is CN 209836829U, the publication date is 2019.12.24, the novel assembled box culvert is formed by connecting a plurality of gate frames with bottom plate notches at the bottoms end to end, the front end and the rear end of each gate frame are provided with tongue-and-groove head ends and tongue-and-groove grooves which are mutually matched, the adjacent two gate frames are spliced at the tongue-and-groove through the tongue-and-groove head end to be connected and fixed end to end, and cast-in-place bottom plates are arranged in bottom plate gaps of a plurality of gate frames; the prefabricated construction method has the advantages that the prefabricated construction method is prefabricated in advance, and the construction progress can be accelerated through unified transportation and installation; the joint of the tongue-and-groove head end and the tongue-and-groove of the adjacent gate frames adopts transverse and longitudinal sealing protection, so that leakage of the joint is prevented, the service life of the assembled box culvert is effectively ensured, and the gate frames are 30cm-35cm thick, so that compared with the prior wall body and foundation, the assembled box culvert can save a large amount of concrete. However, this practical technique still has the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide an improved assembled box culvert template and a construction method thereof, which are used for solving the problems, reducing the transportation cost, simplifying the complicated process and accelerating the construction speed.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The utility model provides a remove improvement assembled box culvert template, includes threaded pull rod, bolt and nut: the movable improved assembled box culvert template further comprises a movable base platform, an outer template, an inner template, a concave end template and a convex end template, wherein the movable base platform is a base template of the box culvert body built by waves, a health preserving and movable pedestal, and the outer template, the inner template, the concave end template, the convex end template and a built health preserving shed of the box culvert body built by waves are arranged at the upper end of the movable base platform.

As a further scheme of the invention: the movable base table is a bottom template, a health preserving and movable table seat of the box culvert body, the movable base table is rectangular and is made of steel plates with the thickness of 20-25 mm, the front end of the movable base table is tilted upwards in radian, traction lugs are arranged on two sides of the top of the tilted end, and inserting columns corresponding to the outer template, the concave end template and the convex end template lower end when the box culvert body is built on the movable base table are provided with inserting column holes; the two sides of the movable base table are provided with a shed rod fixing cylinder for inserting and fixing the lower end of the supporting shed rod corresponding to the cast box culvert body;

or the movable base platform is a bottom template, a health preserving and movable pedestal of the box culvert body, the movable base platform is rectangular and is made of steel plates with the thickness of 20-25 mm, the outer template, the concave end template and the inserting columns at the lower end of the convex end template corresponding to the box culvert body on the movable base platform are provided with inserting column holes, the lower end of the movable base platform is provided with a bottom bracket, ski boards are arranged on two sides of the lower end face of the bottom bracket, the front ends of the ski boards are upwards bent in radian, traction lugs are arranged at the tops of the bent ends, a canopy rod fixing cylinder for supporting canopy rods is arranged on the edges of the movable base platform and the ski boards corresponding to the box culvert body, the ski boards are made of steel plates with the thickness of 20-25 mm, the length of the ski boards is greater than that of the movable base platform, and the sum of the widths of the ski boards is smaller than that of the movable base platform.

As a further scheme of the invention: the outer template is matched with the left and right outer side surfaces of the box culvert body in shape and area, the outer template is made of Q235B steel plates with the thickness of 8-12 mm, reinforcing rib rectangular frames for increasing the rigidity of the template are arranged on the outer side surfaces of the steel plates, bolt holes are formed in the two side edges of the reinforcing rib rectangular frames at intervals, and inserting columns are arranged at the lower ends of the outer template corresponding to corresponding inserting column holes in the movable base table.

As a further scheme of the invention: the inner template is a foldable integrated template, and consists of four groups of hinges, an abutting plate, two inner mold side plates, an inner mold top plate and two inner mold bottom corner plates, wherein the inner mold side plates are matched with the corresponding side surfaces in the box culvert and the upper end side guide angles in shape;

the lower part of the outer side surface of the inner mold side plate corresponds to the lower side surface in the box culvert and is a plane steel plate, and the upper part of the outer side surface of the inner mold side plate corresponds to the upper end side guide angle in the box culvert and is an inward inclined plane steel plate;

The outer side of one inner mold top plate corresponds to the inner top surface of the box culvert and is a plane steel plate, and the upper end edges of the inner mold side plates are connected with the corresponding adjacent side edges of the inner mold top plate through hinges;

The upper end edges of the two bottom inner mould bottom corner plates are connected with the corresponding lower side edges of the inner mould plates through hinges;

The butt joint plate is positioned between the lower end edges of the bottom corner plates of the two bottom internal molds, and the lower end surface of the lower outer side surface of the butt joint plate, which corresponds to the inner middle part of the culvert of the box, is a plane steel plate;

And one side surface of each plane steel plate or V-shaped steel plate is matched with the shape area of the box culvert wall of the corresponding part, the other side surface of each plane steel plate or V-shaped steel plate is provided with a reinforcing rib rectangular frame for increasing the rigidity of the template, each plane steel plate or V-shaped steel plate is made of a Q235B steel plate with the thickness of 8mm, and the lower end edges of the two bottom inner die bottom corner plates are connected with the reinforcing rib rectangular frames on the opposite plate edges through quick connecting bolts in a spacing distance mode.

As a further scheme of the invention: the convex end template is used for forming a butt joint convex edge positioned at the front end of the box culvert body, the convex end template seals a wave construction space between the front end outer side of the inner template and the front end of the outer template and the corresponding bottom template, the convex end template is composed of 4 corner templates positioned at the corners of the convex end template and 4 middle plates positioned between the corner templates, the convex end template is made of Q235B steel plates with the thickness of 8mm, reinforcing rib rectangular frames for increasing the rigidity of the template are arranged on the outer side surfaces of the steel plates, bolt holes are formed in the side edges of the reinforcing rib rectangular frames at intervals, the shape and the area of each corner template and each middle plate are matched with the shape and the area of the butt joint convex edge of the corresponding box culvert body, bolt holes are formed in the interval distance between the corner template edges and the adjacent middle plate edges, the corner templates positioned on the movable base table and the lower end edges of the middle plates are correspondingly arranged on the movable base table, inserted columns are arranged in the corresponding inserted column holes, and the convex end template edges are connected with the corresponding outer templates or the inner template edges through the bolts.

As a further scheme of the invention: the concave end template is used for forming a butt joint groove positioned at the rear end of the box culvert body, the concave end template seals a space between the rear end outer side of the inner template and the rear end of the outer template and the corresponding bottom template, the concave end template is composed of 4 corner templates positioned at the corners of the concave end template and 4 middle plates positioned between the corner templates, the concave end template is made of Q235B steel plates with the thickness of 8mm, reinforcing rib rectangular frames used for increasing the rigidity of the template are arranged on the outer side surfaces of the steel plates, bolt holes are formed in the side edges of the reinforcing rib rectangular frames at intervals, the shape and the area of the butt joint groove of the rear end of the box culvert body where each corner template and each middle plate are positioned are adaptive, the corner template edges and the adjacent middle plate edges are provided with bolt holes at intervals and are connected with each other through penetrating bolts and nuts, inserting columns are arranged on the corresponding inserting column holes on the lower end edges of the corner templates positioned on the movable base table and the middle plates on the corresponding movable base table, and the concave end template edges are connected with the corresponding outer template or the inner template edges through the bolts.

As a further scheme of the invention: the built health-preserving shed is used for forming a health-preserving shed outside a box culvert built by the culvert, the health-preserving shed is composed of a door-shaped supporting shed rod, a middle water spraying rod, a lap joint hook and plastic shed cloth, the door-shaped supporting shed rod is a hollow steel pipe with two sealed ports, a plurality of spray holes are formed in the wall of the hollow steel pipe facing the inside of the health-preserving shed, a water inlet pipe is arranged at the lower part of one side of the hollow steel pipe and communicated with a water storage tank through a guide pipe and a water pump, a three-way pipe is arranged on the door-shaped supporting shed rod in the center of the corresponding culvert, the middle water spraying rod is a straight hollow steel pipe with one sealed end, a plurality of spray holes are formed in the peripheral wall of the middle water spraying rod penetrating through the culvert, the sealing end of the middle water spraying rod is provided with a lap joint hook, the sealing end of the middle water spraying rod is erected in a ring lug on the other side door-shaped supporting shed rod of the corresponding portion through the lap joint hook, the opening end of the middle water spraying rod is fixedly inserted into a shed rod fixing cylinder on two sides of the corresponding to the moving base platform, and a plurality of door-shaped supporting shed rods are provided with plastic shed spaces for sealing the plastic shed.

A construction method for a mobile improved assembled box culvert template comprises the following steps:

(1) Preparing a mobile base station: preparing a plurality of movable base tables on a construction site, wherein each movable base table can accommodate 1-3 box culverts side by side for wave building construction, each movable base table is a bottom template, a health maintenance and a movable pedestal of each box culvert, and outer templates, concave end templates and inserting posts at the lower ends of the convex end templates corresponding to the waves for building the box culverts on the movable base table are provided with inserting post holes, and each inserting post hole of the same wave building box culvert is marked and connected on the surface of the movable base by marking paint;

(2) The preparation stage: preparing a plurality of outer templates, inner templates, concave end templates, convex end templates, spiral supporting rods, threaded pull rods, bolts and nuts, a steel reinforcement cage net, equipment and materials for constructing the box culvert, such as a wringing machine, a welding machine, a crane and concrete materials; after the components of each template are processed and manufactured, trial assembly is carried out in a factory, and the geometric dimensions of the templates are respectively checked based on an assembled box culvert design drawing so as to meet the construction requirements;

The side templates are made of 8-12 mm steel plates, the inner templates, the concave end templates and the convex end templates are made of 8mm high-quality steel plates, the Q235B high-quality steel plates are made of the same materials, reinforcing rib rectangular frames for increasing the rigidity of the templates are arranged on the back surfaces of the templates, and bolt holes are formed in the side edges of the reinforcing rib rectangular frames at intervals;

(3) Before the construction route pit is excavated, dragging the movable base table to the ground of one side of the assembled box culvert construction route pit, and carrying out prefabricated box culvert bodies on the movable base table in advance;

(4) Installing a steel reinforcement framework at the lower part of the wall body: uniformly machining the steel bars through a steel bar machining field, uniformly binding the steel bars on a prefabricated site after machining, wherein the binding of the steel bar frameworks is performed in a mode of firstly binding and forming and then integrally hanging and loading the steel bars into a mould or a mode of directly binding the steel bars on a movable base platform, and brushing a release agent in each inserted column hole mark of the same cast box culvert body on the upper end surface of the movable base platform, wherein the movable base platform is a bottom template of the cast box culvert body, a curing and movable pedestal, a steel bar framework at the lower part of a positioning wall body is installed, the welding of the steel bar frameworks adopts single-sided welding, the lap joint length is more than 10d, and the positions of the steel bar frameworks, protective layer cushion blocks and embedded parts are required to be adjusted in the installation process of the steel bar frameworks, so that the structural size meets the design requirement is ensured;

(5) And (3) mounting an inner template: after the steel reinforcement framework at the lower part of the wall body is installed, the inner template is unfolded and adjusted to be a hollow cuboid and then is hoisted to the concave inner cavity of the steel reinforcement framework at the lower part of the wall body, a sufficient number of protective layer cushion blocks are arranged on the steel reinforcement framework, the inner template is adjusted to be at proper positions, the design requirement is met, a plurality of spiral supporting rods are used for supporting and reinforcing the inner template at intervals in the inner template cavity, deformation is prevented in the inner template installation process, the position of an abutting plate in the middle of the bottom of the inner template is reserved during the inner template installation, and the abutting plate is not installed before the inner template is not adjusted; coating a release agent on the outer side wall of the inner template;

(6) Installing a reinforcing mesh framework at the upper part of the wall body: after the inner template is installed and adjusted to a proper position, installing the machined top plate and the steel bar net framework on the upper part of the wall body, wherein the steel bar framework is provided with enough protective layer cushion blocks, and the installation positions and the number of the protective layer cushion blocks are required to be checked in the installation process so as to ensure that the protective layer cushion blocks meet the design requirements;

(7) And (3) mounting an outer template: after the installation of the reinforcement cage and the inner templates is finished, the installation positions and the protection layer cushion blocks are inspected to be qualified, fixing an abutting plate at the middle part of the lower end of the inner templates, fixing the inner templates, respectively arranging the lower ends of two outer templates on each inserted column hole mark of the two sides of the same wave building box culvert body at the upper end surface of the movable base table, inserting the inserted columns at the lower ends of the outer templates into corresponding inserted column holes, coating a release agent on the inner side surfaces of the two outer templates, adjusting the movable base table surface between the two outer templates to be the bottom template of the box culvert templates, adjusting the outer templates to be at a proper position, measuring the perpendicularity of the outer templates, and fixing the spacing between the outer templates and the inner templates through a plurality of horizontal threaded pull rods to meet the design requirement;

(8) Mounting a concave end template and a convex end template: fixing each corner template forming the concave end template or the convex end template and each middle plate positioned between each corner plate according to corresponding positions to form a whole by fixing bolts and nuts, and coating release agents on the inner side surfaces of the concave end template and the convex end template;

the convex end template is arranged at the butt joint convex edge corresponding to the front end of the box culvert body, the corner template positioned on the movable base table and the inserting column at the lower end of the middle plate are inserted into the corresponding inserting column hole on the corresponding movable base table, and the convex end template edge is connected with the corresponding connected outer template or inner template edge through a quick connecting bolt;

the method comprises the steps that a concave end template is arranged at a butt joint groove corresponding to the rear end of a box culvert body, an angle template positioned on a movable base table and a plug post positioned at the lower end of a middle plate are inserted into a corresponding plug post hole corresponding to the movable base table, and the edges of the concave end template are connected with the edges of a correspondingly connected outer template or inner template through quick connecting bolts;

The space between the outer template and the inner template is fixed through a plurality of horizontal threaded pull rods, the two outer templates are also fixed through a plurality of horizontal threaded pull rods, and finally the threaded pull rods are checked once, so that the fixing is good, and the design requirement is met;

(9) Template inspection: after the templates are installed, the staggered platform, joints, connecting bolts, threaded pull rods and spiral support rods among the templates are required to be inspected, and concrete pouring can be performed after the inspection is qualified and meets the design requirement; the space between the templates forms a wave building space;

(10) And (3) concrete pouring: the concrete pouring is carried out in the wave construction space between the templates, the concrete pouring is carried out sequentially according to the sequence of the bottom surface, the wall body and the top plate of the prefabricated box culvert, and the middle butt joint plate at the bottom of the inner template is connected through bolts and is a detachable butt joint plate, the lower ends of the vertically supported spiral support rods are supported on the two inner mould bottom corner plates, the supporting effect is not influenced, the butt joint plates can be detached firstly when the bottom surface concrete is poured, and the precast box culvert bottom surface is poured, vibrated to be compact and the concrete at the lower chamfer position is poured from the butt joint plate at the bottom of the inner template; pouring, vibrating and compacting the bottom surface of the prefabricated box culvert, and resetting the detached butt joint plate; sequentially pouring the wall body and the top plate of the box culvert, and vibrating for compaction;

(11) And (3) concrete curing: placing the curing shed outside a box culvert built by the casting process immediately after the concrete pouring is finished, respectively inserting and fixing two ends of three door-shaped supporting shed rods into shed rod fixing cylinders on two corresponding sides of a movable base table, fixing the three door-shaped supporting shed rods to form a curing shed supporting framework, arranging plastic shed cloth on the three door-shaped supporting shed rods to form a curing shed for sealing the outer space of the box culvert built by the casting process, screwing the open end of a middle water spraying rod with a three-way pipe on the door-shaped supporting shed rod of the corresponding part, enabling the other end of the middle water spraying rod to penetrate through a ring lug on the other side door-shaped supporting shed rod of the corresponding part, enabling a water inlet pipe on the door-shaped supporting shed rod to be communicated with a water storage tank through a guide pipe and a water pump, starting the water pump, spraying water in the water storage tank to the box culvert built by the casting process through a plurality of sprays Kong Lin on the door-shaped supporting shed rod and the middle rod, curing, and spraying water once every 1 hour;

(12) And (3) removing the template: when the concrete strength of the box culvert built by the waves reaches 75%, each template is removed, and the removal sequence is as follows: the inner template, the concave-convex end template and the outer side template are dismantled by taking care of protecting a concrete finished product, avoiding the phenomenon of knocking edges and falling angles, and then continuing to preserve the concrete until the strength of the concrete meets the requirement;

(13) And (3) unloading the finished box culvert to a movable base table or directly hanging the finished box culvert to the installation, continuously constructing the next box culvert by using a vacancy on the movable base table, and dragging the finished box culvert to the next station by using a tractor after the movable base finishes constructing the finished box culvert of the section of finished product, and repeating the steps (4) to (13) until the box culvert is laid.

As a further scheme of the invention: the concrete curing can be performed in a state of taking down the butt joint plate in the middle of the bottom of the inner template.

As a further scheme of the invention: the movable base tables are bottom templates, health maintenance and movable bases of the box culverts, and each movable base table can accommodate 1 box culvert or a plurality of box culverts in parallel.

The beneficial effects of the invention are as follows:

1. Compared with the prior art, the invention has wide application range, can finish the construction, the health maintenance and the installation of the box culvert beside the foundation pit of the laid box culvert line, and can keep synchronous propulsion along with the propulsion of the construction line. The invention adopts a movable base table, an outer template, an inner template, a concave end template and a convex end template, wherein the movable base table is a base template, a health preserving and movable table base of a wave building box culvert body, and the upper end of the movable base table is provided with the outer template, the inner template, the concave end template, the convex end template and a built health preserving shed of the wave building box culvert body. Therefore, each working procedure of the box culvert body for building, preserving and hoisting can be completed on site and in a movable manner on a construction site, the box culvert building, preserving and installing can be completed beside the foundation pit of the laid box culvert line, and synchronous propulsion can be maintained along with the propulsion of the construction line. Compared with the prior art, the invention does not need to carry out foundation replacement and site hardening on the construction ground, construct transportation highways and prefabrication factories, and can reduce transportation cost, simplify complex process and accelerate construction speed.

2. Compared with the prior art, the method has the advantages that the required working surface is smaller when the foundation pit is excavated, and the simultaneous preparation of the box culvert, the excavation of the foundation pit, the installation and the filling are carried out simultaneously, so that the damage and pollution to the surrounding environment in the construction are reduced.

3. Compared with the cast-in-situ cover plate type box culvert in the prior art, the cast-in-situ cover plate type box culvert has the advantages that the concrete consumption is saved by 23-32% when the box culvert is arranged every 10m, the number of constructors is reduced by 10, the construction cost is reduced by 50%, the construction period is shortened by 64%, and the number of days affecting the surrounding environment is reduced by 29 days. Compared with prefabrication and transportation in a prefabrication factory in the prior art, the method has the advantages that box culverts are distributed every 10m, construction staff are reduced by 8 persons, construction cost is reduced by 60%, construction period is shortened by 50%, and days affecting surrounding environment are reduced by 24 days. The invention is not affected by natural conditions, and special sites and roads are not required to be built, so that the overall economic benefit and the social benefit are remarkable.

4. The invention is centralized and prefabricated on the movable base table in the field, so that the construction quality is controlled stably, the physical quality and the appearance quality of the box culvert are improved effectively, the collision loss caused by repeated loading and unloading in transportation is avoided, and good economic and social benefits are obtained.

The invention is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of the structure of the box culvert prefabricated in the invention;

FIG. 2 is a schematic diagram of a mobile base station according to the present invention;

FIG. 3 is a schematic view of another mobile base station according to the present invention;

FIG. 4 is a schematic view of the cross-sectional structure of the portion A-A in FIG. 3;

FIG. 5 is a schematic diagram of the distribution of templates according to the present invention;

FIG. 6 is a schematic view of the cross-sectional structure of the portion B-B in FIG. 5;

FIG. 7 is a schematic view of the cross-sectional structure of the portion C-C in FIG. 5;

FIG. 8 is a schematic view of the usage status structure of the inner form of the present invention;

FIG. 9 is a schematic view of the inner form in a stowed condition of the present invention;

FIG. 10 is a schematic view of the structure of the butt plate of the inner form of the present invention;

FIG. 11 is a schematic diagram of the structure of the two box culverts of the invention when in butt joint;

FIG. 12 is a schematic diagram of the structure of the box culvert body in the invention during the curing process.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and in order to make the technical means, the creation characteristics, the achievement purposes and the effects achieved by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention. The methods in the following examples are conventional methods unless otherwise specified, and materials, apparatuses, devices and the like used in the following examples are commercially available unless otherwise specified.

Example 1: referring to fig. 1 to 12, a mobile and improved assembled box culvert template comprises a threaded pull rod 9, a bolt 11 and a nut 12. As shown in fig. 11, the front end and the rear end of each box culvert body 7 are provided with a butt joint convex edge 73 end and a butt joint groove 71 end which are matched with each other, and two adjacent movable improved assembled box culverts are spliced at the butt joint groove 71 end through the butt joint convex edge 73 end for head-to-tail connection and fixation.

The movable improved assembled box culvert template further comprises a movable base table 6, an outer template 3, an inner template 1, a concave end template 2 and a convex end template 4, wherein the movable base table is a bottom template of a wave building box culvert body, a health preserving and movable pedestal, and the upper end of the movable base table is provided with the outer template, the inner template, the concave end template, the convex end template and a built health preserving shed of the wave building box culvert body 7.

Referring to fig. 2, the movable base 6 is a base template, a curing and movable base for the box culvert body of the wave building. The movable base table is rectangular and is made of steel plates with the thickness of 20-25 mm, the front end of the movable base is lifted upwards in radian, traction lugs 62 are arranged on two sides of the top of the lifted end, and a tractor is hung with a traction hook when the traction lugs are used for traction of the movable base table. The outer template, the concave end template and the inserting posts 33 at the lower end of the convex end template are provided with inserting post holes 61 corresponding to the outer template, the concave end template and the convex end template when the box culvert body is built on the movable base platform; the two sides of the movable base table are provided with a canopy rod fixing cylinder 65 for inserting and fixing the lower end of the supporting canopy rod 13 corresponding to the billows building box culvert body.

Referring to fig. 5 to 7, the outer mold plate 3 is adapted to the shape and area of the left and right outer sides of the box culvert body 7, that is, the mold plate surface corresponding to the portion can form the required corresponding shape of the box culvert body for the casting, such as: the outer template can enable two sides of the box culvert body to form vertical planes, and the following steps are: the male end form can form a butt-joint male edge 73 at the front end of the box culvert body, and the following description will not be repeated.

The outer template is made of Q235B steel plates 32 with the thickness of 8-12 mm, reinforcing rib rectangular frames 31 for increasing the rigidity of the template are arranged on the outer side faces of the steel plates 32, bolt holes 34 are formed in the two side edges of each reinforcing rib rectangular frame at intervals, and inserting columns 33 are arranged at the lower end of the outer template corresponding to corresponding inserting column holes 61 in the movable base table.

Referring to fig. 5 to 10, the inner template 1 is a foldable integrated template, and is used to form culverts 72 in the box culvert body 7. The inner template consists of four groups of hinges 101, an abutting plate 100, two inner mould side plates 102, an inner mould top plate 103 and two inner mould bottom corner plates 104, and the inner mould side plates are matched with the corresponding side surfaces and upper end side guide angle shapes in the box culvert.

The lower part of the outer side surface of the inner mold side plate 102 corresponds to the lower side surface in the box culvert and is a plane steel plate, and the upper part of the outer side surface of the inner mold side plate corresponds to the upper end side guide angle in the box culvert and is a plane steel plate 32 inclined inwards.

The inner top surface of the box culvert corresponding to the outer side surface of one inner die top plate 103 is a plane steel plate, and the upper end edges of the inner die side plates are connected with the corresponding adjacent side edges of the inner die top plate through hinges 101.

The inner mold bottom corner plate 104 is V-shaped, the upper outer side of the inner mold bottom corner plate corresponds to the lower end side guide angle in the culvert, which is a V-shaped steel plate, and the upper end edges of the two inner mold bottom corner plates are connected with the corresponding lower side edges of the inner mold plate through hinges.

The butt plate 100 is positioned between the lower end edges of the bottom corner plates of the two bottom internal molds, and the lower end surface of the lower outer side of the butt plate, which corresponds to the inner middle part of the culvert of the box, is a plane steel plate.

One side surface of each plane steel plate or V-shaped steel plate is matched with the shape area of the box culvert wall of the corresponding part, the other side surface of each plane steel plate or V-shaped steel plate is provided with a reinforcing rib rectangular frame 31 for increasing the rigidity of the template, each plane steel plate or V-shaped steel plate is made of Q235B steel plates with the thickness of 8mm, the lower end edges of the two bottom inner die bottom corner plates are connected with the reinforcing rib rectangular frames on the opposite plate edges through quick connecting bolts or bolts and nuts in a spacing distance mode, and the bolt holes 34 are formed in the reinforcing rib rectangular frames.

Referring to fig. 5 and 7, the flange mold 4 is used to form a butt flange 73 at the front end of the box culvert body, and seals the casting space 5 between the outer side of the front end of the inner mold and the front end of the outer mold and the corresponding bottom mold (i.e., the moving base table of the corresponding portion), and is composed of 4 corner mold plates 41 at the corners of the flange mold and 4 intermediate plates 42 between the corner plates. The convex end templates are made of Q235B steel plates with the thickness of 8mm, reinforcing rib rectangular frames 31 for increasing the rigidity of the templates are arranged on the outer side faces of the steel plates, bolt holes 34 are formed in the side edges of the reinforcing rib rectangular frames at intervals, and each corner template and each middle plate are matched with the shape and the area of the butt joint convex edge of the front end of the corresponding box culvert body. Bolt holes 34 are formed in the rectangular frames of the reinforcing ribs between the corner formwork sides and the adjacent middle formwork sides at intervals and are connected with each other through the bolts 11 and the nuts 12. The corner templates positioned on the movable base table and the corresponding inserting column holes on the lower end edge of the middle plate corresponding to the movable base table are provided with inserting columns 33, and the convex end template edge is connected with the corresponding connected outer template or inner template edge through quick connecting bolts.

Referring to fig. 5, a female mold plate 2 is used for forming a butt-joint groove 71 at the rear end of a box culvert body, the female mold plate seals a space between the rear outer side of the rear end of an inner mold plate and the rear end of an outer mold plate and a corresponding bottom mold plate (namely, a movable base table surface of a corresponding part), the female mold plate is composed of 4 corner mold plates at the corners of the female mold plate and 4 middle plates between the corner mold plates, the female mold plate is made of a Q235B steel plate with the thickness of 8mm, a reinforcing rib rectangular frame for increasing the rigidity of the mold plate is arranged on the outer side of the steel plate, bolt holes are formed on the side edges of the reinforcing rib rectangular frame at intervals, the shape and the area of the butt-joint groove between each corner mold plate and each middle plate and the corresponding rear end of the box culvert body are adapted, bolt holes are formed at intervals on the rectangular frame between the corner mold plate edges and the adjacent middle plate edges, through penetrating bolts and nuts, inserting columns are formed on corresponding column holes on the movable base table at the lower end edges of the corner mold plates and the middle plates, and the corresponding column edges on the movable base table are connected through bolts or between the inner mold plate edges and the corresponding outer mold plates.

Referring to fig. 1 and 12, the built health-preserving shed is used for forming a health-preserving shed house outside a box culvert built by billows, and the health-preserving shed is composed of a door-shaped supporting shed rod 13, a middle water spraying rod 15, a lap joint hook 18 and a plastic shed cloth 19. The door-shaped supporting canopy rod is a hollow steel pipe with two sealed ports, a plurality of spray holes 14 are formed in the wall, facing the inside of the health-preserving canopy, of the hollow steel pipe, a water inlet pipe 17 is arranged at the lower part of one side of the hollow steel pipe, the water inlet pipe is communicated with a water storage tank through a guide pipe and a water pump, a three-way pipe 16 is arranged on the door-shaped supporting canopy rod in the center part of the corresponding culvert, the middle water spray rod 15 is a straight hollow steel pipe with one sealed end, a plurality of spray holes 14 are formed in the peripheral wall of the middle water spray rod penetrating through the culvert, a lap joint hook is arranged at the sealing end of the middle water spray rod, the sealing end of the middle water spray rod is erected in a ring lug on the other side door-shaped supporting canopy rod in the corresponding part through the lap joint hook, one end of the middle water spray rod is used for fixing the middle water spray rod, the opening end of the middle water spray rod is provided with an external thread part and is in threaded connection with the three-way pipe, the two ends of the door-shaped supporting canopy rod are inserted and fixed in canopy rod fixing cylinders 65 on two sides corresponding to the movable base table 6, and a plurality of (usually 3 box culvert bodies) of the door-shaped supporting canopy rods are provided with plastic canopy cloths 19 for sealing the outer space of a box building.

(1) Preparing a movable base table 6: a plurality of movable base tables are prepared on a construction site, and each movable base table can accommodate 1-3 box culverts side by side for the construction of the waves, wherein the movable base tables are bottom templates, health maintenance and movable pedestals of the box culverts. The outer template, the concave end template and the inserting columns at the lower end of the convex end template are provided with inserting column holes 61 corresponding to the inner template, the concave end template and the convex end template when the box culvert body is built on the movable base table, and each inserting column hole of the same inner template is marked and connected on the movable base surface by using marking paint.

(2) The preparation stage: the method comprises the steps of preparing a plurality of outer templates 3, inner templates 1, concave end templates 2, convex end templates 4, spiral supporting rods 8, threaded pull rods 9, bolts 11 and nuts 12, a steel reinforcement cage 10 and equipment and materials for constructing the box culvert by the waves, such as a winch, a welding machine, a crane and concrete materials; after the components of each template are processed and manufactured, trial assembly is carried out in a factory, and the geometric dimensions of the templates are respectively checked based on an assembled box culvert design drawing so as to meet the construction requirements;

The side templates are made of 8-12 mm steel plates, the inner templates, the concave end templates and the convex end templates are made of 8mm high-quality steel plates, the Q235B high-quality steel plates are made of the same materials, reinforcing rib rectangular frames 31 for increasing rigidity of the templates are arranged on the back surfaces of the templates, and bolt holes 34 are formed in the side edges of the reinforcing rib rectangular frames at intervals.

(3) Before the construction route pit is excavated, the movable base table 6 is towed to the ground of one side edge of the assembled box culvert construction route pit, and the prefabricated box culvert body 7 is prefabricated on the movable base table in advance. The movable base table 6 should perform horizontal correction of the movable base table surface before the box culvert body is built, such as correction of a cushion block, etc., to achieve horizontal correction.

(4) The steel reinforcement framework 10 at the lower part of the wall body is installed: the steel bars are uniformly processed through a steel bar processing field, the steel bars are uniformly bound on a prefabricated site after being processed, the steel bar skeleton 10 is bound in a mode of firstly binding and forming and then integrally hanging and loading the steel bars into a mould or a mode of directly binding on a movable base table, the same each inserting column hole 61 of the box body of the cast house on the upper end surface of the movable base table is internally coated with a release agent, the movable base table is a base template of the box body of the cast house, a curing and movable pedestal, the steel bar skeleton at the lower part of a positioning wall body is installed, the steel bar skeleton 10 is welded by single-sided welding, the lap joint length is more than 10d, and the positions of the steel bar skeleton, a protective layer cushion block and an embedded part are required to be adjusted in the installation process of the steel bar skeleton, so that the structural size meets the design requirement is ensured. Wherein the protective layer cushion block of the steel reinforcement framework is formed by a round mortar cushion block arranged on the steel reinforcement framework, and the thickness of the cushion block is controlled according to 25mm+2 mm. When in installation, the cushion blocks are arranged in a plum blossom shape, the distance between adjacent cushion blocks is not more than 1m, and the cushion blocks are fixed on the steel reinforcement framework by tie wires, wherein the cushion blocks at the joint of the bottom surface and the web plate are properly encrypted; the cushion blocks of the protective layer should be purchased uniformly, the surfaces of the cushion blocks are clean, the colors of the cushion blocks are consistent with the appearance of structural concrete, the strength requirement is not lower than that of box culvert concrete, the processing and installation of the reinforcing steel bars need to be careful that the reinforcing steel bar framework which cannot be poured into the mould in time is covered by color stripe cloth or other covers, and the rusting after sunburn and rain are prevented.

(5) And (3) mounting an inner template 1: after the steel reinforcement framework at the lower part of the wall body is installed, the inner template is unfolded and adjusted to be a hollow cuboid and then is hoisted to the concave inner cavity of the steel reinforcement framework at the lower part of the wall body, a sufficient number of protective layer cushion blocks (which are arranged in the same way) are arranged on the steel reinforcement framework, the inner template is adjusted to a proper position to meet the design requirement, a plurality of spiral supporting rods 8 are used for supporting and reinforcing the inner template 1 at intervals in the inner template cavity so as to prevent deformation in the inner template installation process, the position of an abutting plate 100 in the middle of the bottom of the inner template is reserved when the inner template is installed, and the abutting plate is not installed before the inner template is adjusted; and (3) coating a release agent on the outer side wall of the inner template to facilitate release.

(6) Installing a reinforcing mesh framework at the upper part of the wall body: after the inner template is installed and adjusted to a proper position, the machined top plate and the steel bar net framework on the upper portion of the wall body are installed, and enough protective layer cushion blocks (which are arranged in the same way) are arranged on the steel bar framework 10, so that the installation positions and the number of the protective layer cushion blocks are required to be checked in the installation process, and the protective layer cushion blocks are confirmed to meet the design requirements.

(7) And (3) mounting an outer template: after the installation of the reinforcement cage and the inner template is completed, the installation position is checked, and all projects of the protective layer cushion block are qualified, the abutting plate is fixed at the middle part of the lower end of the inner template, and the inner template is fixed. The lower ends of the two outer templates are respectively arranged on the post inserting holes label connection at the two sides of the same wave building box culvert body at the upper end surface of the movable base table, and the posts 33 at the lower ends of the outer templates are inserted into the corresponding post inserting holes 61, so that the lower ends of the two outer templates are positioned and fixed. And a release agent is coated on the inner side surfaces of the two outer templates, and a movable base table surface between the two outer templates is a bottom template of the box culvert template. The outer template is adjusted to a proper position, the perpendicularity of the outer template is measured, the distance between the outer template and the inner template is fixed through a plurality of horizontal threaded pull rods 9, and the design requirement is met.

(8) Mounting a concave end template and a convex end template: fixing each corner template forming the concave end template or the convex end template and each middle plate positioned between each corner plate according to corresponding positions to form a whole by fixing bolts and nuts, and coating release agents on the inner side surfaces of the concave end template and the convex end template; the convex end template 4 is arranged at the butt joint convex edge corresponding to the front end of the box culvert body, the corner template positioned on the movable base table and the inserted column at the lower end of the middle plate are inserted into the corresponding inserted column hole on the corresponding movable base table, and the convex end template edge is connected with the corresponding connected outer template or inner template edge through a quick connecting bolt.

The concave end template is arranged at the butt joint groove corresponding to the rear end of the box culvert body, the corner template positioned on the movable base table and the inserting column positioned at the lower end of the middle plate are inserted into the corresponding inserting column hole corresponding to the movable base table, and the concave end template edge is connected with the corresponding connected outer template or inner template edge through a quick connecting bolt.

The interval between the outer template and the inner template is fixed through a plurality of horizontal threaded pull rods, the two outer templates are also fixed through a plurality of horizontal threaded pull rods, and finally the threaded pull rods are verified once, so that the space is fixed, and the design requirement is met.

(10) And (3) concrete pouring: concrete pouring is carried out in the wave construction space 5 between the templates, the concrete pouring is carried out sequentially according to the sequence of the bottom surface, the wall body and the top plate of the prefabricated box culvert, the butt joint plate in the middle of the bottom of the inner template is connected through bolts and is a detachable butt joint plate, the lower ends of the spiral supporting rods of the vertical supports are arranged on the edges of the inner mould bottom corner plates 104 on the two sides of the detachable butt joint plate, and the supporting effect of the butt joint plate is not influenced when the butt joint plate is detached. The butt joint plate 100 can be detached firstly when the bottom surface concrete is poured, and concrete pouring, compaction by vibration and concrete pouring and compaction by vibration at the lower chamfer angle are carried out on the bottom surface of the prefabricated box culvert from the butt joint plate blank at the bottom of the inner template. Pouring, vibrating and compacting the bottom surface of the prefabricated box culvert, and resetting the detached butt joint plate; and then pouring, vibrating and compacting the wall body and the top plate of the box culvert in sequence.

(11) And (3) concrete curing: after the concrete pouring is finished, the curing shed is immediately arranged outside a box culvert built by the waves, two ends of three door-shaped supporting shed rods 13 are respectively inserted and fixed into shed rod fixing cylinders 65 on two corresponding sides of a movable base table, the three door-shaped supporting shed rods form a curing shed supporting framework, plastic shed cloth 19 is arranged on the three door-shaped supporting shed rods, the bottom edges of the plastic shed cloth are fixed with the movable base table by pressing bricks or pulling ropes to form a curing shed house for sealing the outer space of the box culvert built by the waves, the open ends of middle water spraying rods 15 are in threaded connection with three-way pipes 16 on the door-shaped supporting shed rods corresponding to the central parts of the culverts (the other two door-shaped supporting shed rods are not provided with three-way pipes), the other ends of the middle water spraying rods penetrate through the central parts of the culverts and are erected in annular lugs on the other side door-shaped supporting shed rods corresponding to the corresponding parts, water inlet pipes 17 on the door-shaped supporting shed rods are connected in parallel or then connected in series by water pumps and communicated with water storage tanks, and water pumps are started, water in the water storage tanks are sprayed to spray water every other times at intervals of the curing shed space of the box culverts, and the curing shed is sprayed for a small time.

(12) And (3) removing the template: when the concrete strength of the box culvert built by the waves reaches 75%, each template is removed, and the removal sequence is as follows: the inner template, the concave-convex end template and the outer side template are taken care of when the concrete product is dismantled, the phenomenon that edges and corners are knocked off is avoided, and then the concrete product is continuously cured until the strength of the concrete meets the requirement.

The concrete curing can be performed in a state of taking down the butt joint plate in the middle of the bottom of the inner template.

The movable base tables are bottom templates, health maintenance and movable bases of the box culverts, and each movable base table can accommodate 1 box culvert in parallel or a plurality of box culverts.

Table 1 shows the advantages and disadvantages of the present invention compared with the prior art in which the culvert is laid every 10 m:

Table 1:

table 1 shows that compared with the cast-in-situ cover plate type box culvert in the prior art, the concrete consumption is saved by 23-32% for each 10m of box culvert layout, the construction cost is reduced by 50% for constructors, the construction period is shortened by 64%, and the number of days affecting the surrounding environment is reduced by 29 days. Compared with prefabrication and transportation in a prefabrication factory in the prior art, the method has the advantages that box culverts are distributed every 10m, construction staff are reduced by 8 persons, construction cost is reduced by 60%, construction period is shortened by 50%, and days affecting surrounding environment are reduced by 24 days. The invention is not affected by natural conditions, and special sites and roads are not required to be built, so that the overall economic benefit and the social benefit are remarkable.

Example 2: referring to fig. 3 to 4, unlike embodiment 1, the following are: the movable base table 6 can also be a bottom template, a health preserving and movable pedestal of a box culvert body, the movable base table is rectangular and is made of steel plates with the thickness of 20-25 mm, the outer template, the concave end template and the inserting posts 33 of the lower end of the convex end template corresponding to the box culvert body on the movable base table are provided with inserting post holes 61, the lower end of the movable base table is provided with a bottom bracket 63, the two sides of the lower end surface of the bottom bracket are provided with sled plates 64, the bottom bracket is fixedly welded with the sled plates and the lower end of the movable base table through welding, the front end of the sled plates is upward in radian, the top of the tilting end is provided with traction lugs, the movable base table and the two sides of the sled plates are provided with canopy rod fixing cylinders 65 for supporting the lower end of the canopy rods 13 for insertion and fixing, the sled plates are made of steel plates with the thickness of 20-25 mm, the length of the sled plates is greater than the length of the movable base table, and the sum of the width of the sled plates is smaller than the width of the movable base table. Thereby being more beneficial to the construction and the movement of the waves on the movable base platform. The remainder is the same as in example 1, and therefore will not be described again.

The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a remove improvement assembled box culvert template, includes screw thread pull rod, bolt and nut, its characterized in that: the movable improved assembled box culvert template further comprises a movable base table, an outer template, an inner template, a concave end template and a convex end template, wherein the movable base table is a bottom template of the wave building box culvert body, a health preserving and movable pedestal, and the upper end of the movable base table is provided with the outer template, the inner template, the concave end template, the convex end template and a built health preserving shed of the wave building box culvert body;

The movable base table is a bottom template, a health preserving and movable table seat of the box culvert body, the movable base table is rectangular and is made of steel plates with the thickness of 20-25 mm, the front end of the movable base table is tilted upwards in radian, traction lugs are arranged on two sides of the top of the tilted end, and inserting columns corresponding to the outer template, the concave end template and the convex end template lower end when the box culvert body is built on the movable base table are provided with inserting column holes; the two sides of the movable base table are provided with a shed rod fixing cylinder for inserting and fixing the lower end of the supporting shed rod corresponding to the cast box culvert body; or the movable base platform is a bottom template, a health maintenance and movable pedestal of the box culvert body, the movable base platform is rectangular and is made of steel plates with the thickness of 20-25 mm, the outer template, the concave end template and the inserting posts at the lower end of the convex end template corresponding to the box culvert body on the movable base platform are provided with inserting post holes, the lower end of the movable base platform is provided with a bottom bracket, the two sides of the lower end surface of the bottom bracket are provided with ski boards, the front ends of the ski boards are upwards bent in radian, the tops of the bent ends are provided with traction lugs, the movable base platform and the ski boards are provided with canopy rod fixing cylinders for supporting the lower ends of canopy rods to be inserted and fixed, the ski boards are made of steel plates with the thickness of 20-25 mm, the length of the ski boards is greater than the length of the movable base platform, and the sum of the widths of the ski boards is smaller than the width of the movable base platform.

2. The mobile modified fabricated box culvert template of claim 1, wherein: the outer template is matched with the left and right outer side surfaces of the box culvert body in shape and area, the outer template is made of Q235B steel plates with the thickness of 8-12 mm, reinforcing rib rectangular frames for increasing the rigidity of the template are arranged on the outer side surfaces of the steel plates, bolt holes are formed in the two side edges of the reinforcing rib rectangular frames at intervals, and inserting columns are arranged at the lower ends of the outer template corresponding to corresponding inserting column holes in the movable base table.

3. The mobile modified fabricated box culvert template of claim 1, wherein: the inner template is a foldable integrated template, and consists of four groups of hinges, an abutting plate, two inner mold side plates, an inner mold top plate and two inner mold bottom corner plates, wherein the inner mold side plates are matched with the corresponding side surfaces in the box culvert and the upper end side guide angles in shape;

4. The mobile modified fabricated box culvert template of claim 1, wherein: the convex end template is used for forming a butt joint convex edge positioned at the front end of the box culvert body, the convex end template seals a wave construction space between the front end outer side of the inner template and the front end of the outer template and the corresponding bottom template, the convex end template is composed of 4 corner templates positioned at the corners of the convex end template and 4 middle plates positioned between the corner templates, the convex end template is made of Q235B steel plates with the thickness of 8mm, reinforcing rib rectangular frames for increasing the rigidity of the template are arranged on the outer side surfaces of the steel plates, bolt holes are formed in the side edges of the reinforcing rib rectangular frames at intervals, the shape and the area of each corner template and each middle plate are matched with the shape and the area of the butt joint convex edge of the corresponding box culvert body, bolt holes are formed in the interval distance between the corner template edges and the adjacent middle plate edges, the corner templates positioned on the movable base table and the lower end edges of the middle plates are correspondingly arranged on the movable base table, inserted columns are arranged in the corresponding inserted column holes, and the convex end template edges are connected with the corresponding outer templates or the inner template edges through the bolts.

5. The mobile modified fabricated box culvert template of claim 1, wherein: the concave end template is used for forming a butt joint groove positioned at the rear end of the box culvert body, the concave end template seals a space between the rear end outer side of the inner template and the rear end of the outer template and the corresponding bottom template, the concave end template is composed of 4 corner templates positioned at the corners of the concave end template and 4 middle plates positioned between the corner templates, the concave end template is made of Q235B steel plates with the thickness of 8mm, reinforcing rib rectangular frames used for increasing the rigidity of the template are arranged on the outer side surfaces of the steel plates, bolt holes are formed in the side edges of the reinforcing rib rectangular frames at intervals, the shape and the area of the butt joint groove of the rear end of the box culvert body where each corner template and each middle plate are positioned are adaptive, the corner template edges and the adjacent middle plate edges are provided with bolt holes at intervals and are connected with each other through penetrating bolts and nuts, inserting columns are arranged on the corresponding inserting column holes on the lower end edges of the corner templates positioned on the movable base table and the middle plates on the corresponding movable base table, and the concave end template edges are connected with the corresponding outer template or the inner template edges through the bolts.

6. The mobile modified fabricated box culvert template of claim 1, wherein: the built health-preserving shed is used for forming a health-preserving shed outside a box culvert built by the culvert, the health-preserving shed is composed of a door-shaped supporting shed rod, a middle water spraying rod, a lap joint hook and plastic shed cloth, the door-shaped supporting shed rod is a hollow steel pipe with two sealed ports, a plurality of spray holes are formed in the wall of the hollow steel pipe facing the inside of the health-preserving shed, a water inlet pipe is arranged at the lower part of one side of the hollow steel pipe and communicated with a water storage tank through a guide pipe and a water pump, a three-way pipe is arranged on the door-shaped supporting shed rod in the center of the corresponding culvert, the middle water spraying rod is a straight hollow steel pipe with one sealed end, a plurality of spray holes are formed in the peripheral wall of the middle water spraying rod penetrating through the culvert, the sealing end of the middle water spraying rod is provided with a lap joint hook, the sealing end of the middle water spraying rod is erected in a ring lug on the other side door-shaped supporting shed rod of the corresponding portion through the lap joint hook, the opening end of the middle water spraying rod is fixedly inserted into a shed rod fixing cylinder on two sides of the corresponding to the moving base platform, and a plurality of door-shaped supporting shed rods are provided with plastic shed spaces for sealing the plastic shed.

7. The construction method of the movable improved assembled box culvert template is characterized by comprising the following steps of:

8. The construction method according to claim 7, wherein: the concrete curing can be performed in a state of taking down the butt joint plate in the middle of the bottom of the inner template.

9. The construction method according to claim 7, wherein: the movable base tables are bottom templates, health maintenance and movable bases of the box culverts, and each movable base table can accommodate 1 box culvert or a plurality of box culverts in parallel.