CN108612259B - An assembled lattice column that is easy to disassemble and its use method - Google Patents

Abstract

The invention discloses an assembled lattice column convenient to disassemble and a use method thereof, which solve the problem that the construction of an interval tunnel structure cannot ensure the safety of an established pipe gallery structure when track traffic and urban comprehensive pipe galleries are constructed together, the lattice column is arranged in sections, gaps are reserved among the sections, the gap arrangement is adjustable, the upper section and the lower section of the lattice column can be disassembled quickly and conveniently after the construction is finished, the upper section and the lower section of the lattice column can be reused, and the technical scheme is as follows: the device comprises an upper section of a lattice column, a middle section of the lattice column and a lower section of the lattice column which are sequentially connected from top to bottom; the upper section and the middle section of the lattice column and the middle section and the lower section of the lattice column are connected through a gap adjusting device, the gap adjusting device comprises a fixed connection structure, the fixed connection structure and the movable connection structure are arranged at intervals relatively, and the movable connection structure is provided with an adjustable jacking structure so as to adjust the gap between the fixed connection structure and the movable connection structure.

Description

An assembled lattice column that is easy to disassemble and its use method

technical field

The invention relates to the technical field of building construction, in particular to an assembled lattice column which is easy to disassemble and a method for using it.

Background technique

With the rapid development of urban rail transit, the construction of urban comprehensive utility corridors has also advanced by leaps and bounds. In the construction of emerging urban CBD areas or large-scale urban upgrading and construction, problems will inevitably be encountered in the joint construction of urban comprehensive utility corridors and rail transit. How to solve the joint construction of rail transit and comprehensive utility corridor, make full use of the limited underground space and reduce the investment of municipal construction has become increasingly prominent in the planning, design and construction of comprehensive utility corridor and rail transit joint construction, especially how to solve the problem of joint construction The construction sequence of the cross nodes in the joint construction, ensuring the construction quality has become the focus of the construction of joint construction nodes.

In view of this, in actual construction, the "cross" intersection or oblique node construction of the comprehensive pipe gallery above and the rail transit below, the upper pipe gallery will be constructed first and the pipe gallery interface at the intersection will be reserved, and the construction of the lower rail transit section will be completed. After completion, the construction of the pipe gallery will be completed. During the construction of the rail transit section, the constructed pipe gallery will be supported and protected by lattice columns. At the same time, due to the space relationship, the lattice columns need to be located in the roof of the section and when concrete is poured in the section, the lattice columns should be located The section tunnel roof part shall remain permanently in the section roof.

Usually, after the section concrete construction is completed and passed the inspection, the gap between the rail transit section and the comprehensive pipe gallery is backfilled with concrete, and the lattice columns are cut and removed. There are no waterproof measures for the lattice columns buried in the structure, which brings the tunnel waterproof Hidden danger: When the steel bars are bound, due to the influence of the lattice column structure, the original full-length steel bar is cut off from the lattice column, which has a negative impact on the stress of the structure and buryes a hidden danger to the durability of the structure.

To sum up, in the prior art, there is still no effective solution to the problem that the construction of lattice columns cannot guarantee the safety of the pipe gallery structure.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides an assembled lattice column that is easy to disassemble. It can quickly and conveniently disassemble the upper and lower sections of the lattice column after the construction is completed, and the upper and lower sections of the lattice column can be reused;

Further, the present invention adopts the following technical solutions:

An assembled lattice column that is easy to disassemble, comprising an upper section of the lattice column, a middle section of the lattice column and a lower section of the lattice column connected sequentially from top to bottom; The middle section of the column and the lower section of the lattice column are connected by a gap adjustment device. The gap adjustment device includes a fixed connection structure. Adjust the gap between the fixed connection structure and the movable connection structure.

Further, the adjustable clamping structure is connected to the movable connection structure, and the end of the adjustable clamping structure is clamped on the end face of the fixed connection structure, and the adjustable clamping structure can move along the joint with the movable connection structure to adjust the fixed The gap between the link structure and the active link structure.

Further, the fixed connection structure is fixedly provided with a plurality of uniformly distributed inner wire joints, and the inner wire joints are connected to the movable connection structure through fastening connectors.

Further, the inner thread joint is provided with an internal thread blind hole, and the fastening connector is passed through the internal thread blind hole to be reliably connected with the inner thread joint.

Further, the axis of the inner thread joint is perpendicular to the end face of the fixed connection structure, and the thickness of the inner thread joint is greater than the thickness of the fixed connection structure.

Further, the inner wire joint and the fixed connection structure are integrated welded structures.

Further, the fixed connection structure is fixedly connected to the middle section of the lattice column, and the movable connection structure is fixedly connected to the upper section of the lattice column or the lower section of the lattice column.

Further, a water baffle is fixed on the outer periphery of the middle section of the lattice column.

Further, the middle section of the lattice column on the upper and lower sides of the water retaining plate is fixed with longitudinally connected round bars and transversely connected round bars vertically distributed, and the ends of the longitudinally connected round bars and the transversely connected round bars are equipped with steel bar connectors.

Further, there are multiple longitudinal connecting round bars on the same side of the water retaining plate, and their axes are located in the same horizontal plane and parallel to each other; there are multiple transverse connecting round steels located on the same side of the water retaining plate, and their axes are located in the same horizontal plane and Parallel to each other; the planes where the axes of the longitudinal connecting round steel and the horizontal connecting round steel on the same side of the water retaining plate are located are distributed parallel up and down.

Further, a set distance is set between adjacent vertically connected round bars, and the interval is consistent with the structural longitudinal steel bar spacing; a set distance is set between adjacent horizontally connected round bars, and the interval is consistent with the structural transverse steel bar spacing.

Further, a plurality of steel bar connectors horizontally connecting two ends of the round steel are arranged in dislocation, and a plurality of steel bar connectors vertically connecting the two ends of the round steel are arranged in a dislocation, and the dislocation size meets the specification requirements.

A method for using an assembled lattice column that is easy to disassemble, comprising the following steps:

Step 1: Fix the lower section of the lattice column, and set up the pouring formwork at intervals above the lower section of the lattice column;

Step 2: Install the middle section of the lattice column between the pouring formwork, the bottom of the middle section of the lattice column is coplanar with the bottom of the pouring formwork, set the water retaining plate in the middle section of the lattice column, and connect the round steel vertically and horizontally;

Step 3: Set a gap adjustment device between the middle section of the lattice column and the lower section of the lattice column, the adjustable top tightening structure adjusts the gap between the fixed connection structure and the movable connection structure, and the fastening connector will fix the connection structure and the movable connection structure Fasten the connection;

Step 4: Install the upper section of the lattice column, and the top of the upper section of the lattice column is in reliable contact with the bottom of the pipe gallery;

Step 5: Set a gap adjustment device between the upper section of the lattice column and the middle section of the lattice column, the adjustable top tightening structure adjusts the gap between the fixed connection structure and the movable connection structure, and the fastening connector will fix the connection structure and the movable connection structure Fasten the connection;

Step 6: Concrete is poured in the pouring formwork, and the concrete is integrated with the middle section of the lattice column. After the concrete strength meets the design requirements, waterproof treatment is done at the connection between the middle section of the lattice column and the upper section of the lattice column.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, the lattice column is arranged in sections, and a gap is left between each section, and the gap is not adjustable, which can quickly and conveniently disassemble the upper and lower sections of the lattice column after the construction is completed, and the lattice column The upper and lower sections can be reused.

The gap adjustment device in the lattice column of the present invention can adjust the gap between the movable connection structure and the fixed connection structure through the adjustable top tightening structure, and when the lattice column is disassembled, the gap between the upper and lower sections of the lattice column and the middle poured concrete structure can be adjusted. With sufficient clearance, it is only necessary to deflect the upper and lower sections of the lattice column to take it out during disassembly. The disassembly is simple and convenient, and the disassembly safety is ensured, and the disassembly cost is also reduced.

The fixed connection structure of the lattice column of the present invention is provided with inner wire joints and fastening connectors, which can ensure reliable connection between different sections of the lattice column, provide reliable support for the support structure, and effectively control the support deformation of the structure.

The present invention arranges a water retaining plate in the middle section of the lattice column, which can effectively play a waterproof role, and effectively solves the waterproof problem of the lattice column permanently buried in the concrete structure.

The middle section of the lattice column of the present invention has longitudinally connected round steel and transversely connected round steel, which can be connected to the steel bar through the steel bar connector, avoiding the cutting of the long steel bar at the lattice column, and improving the structural strength and durability.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute an improper limitation of the present application.

Fig. 1 is the schematic diagram of lattice column of the present invention;

Figure 2 is a schematic diagram of the arrangement and coordination of the gap adjustment device;

Fig. 3 is a cross-sectional view of the middle section of the lattice column;

In the figure, 1 is the upper section of the lattice column, 2 is the middle section of the lattice column, 3 is the lower section of the lattice column, 4 is the fastening connector, 5 is the adjustable top tightening structure, 6 is the steel bar connector, 7 is the longitudinal connecting round steel, 8 is the inner wire joint , 9 active connection structure, 10 fixed connection structure, 11 water retaining plate, 12 gap adjustment device, 13 horizontal connection round steel, 14 concrete structure.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background technology, there is a problem in the prior art that when the rail transit and the urban comprehensive pipe gallery are jointly constructed, the construction of the interval tunnel structure cannot guarantee the safety of the existing pipe gallery structure. In order to solve the above technical problems, this application proposes An easy-to-disassemble assembled lattice column and its use method are proposed, which can ensure the waterproof construction quality of the section structure and the safety of the built pipe gallery.

In a typical implementation of the present application, as shown in Figures 1-3, an assembled lattice column that is easy to disassemble is provided, including the upper section 1 of the lattice column connected sequentially from top to bottom, the lattice structure The middle section 2 of the column and the lower section 3 of the lattice column; the upper section 1 of the lattice column is set between the outer side of the roof of the interval structure and the bottom of the pipe gallery, and plays the role of supporting the pipe gallery structure; the middle section 2 of the lattice column is buried in the concrete structure 14 of the interval tunnel structure , the lower section 3 of the lattice column is located in the interval tunnel, is the bottom support, connects with the middle section, transmits force through the middle section, and bears the vertical component force caused by the deformation of the cantilever part of the pipe gallery. It is one of the main force-bearing members. Both the upper section 1 of the lattice column and the lower section 3 of the lattice column can be removed.

Between the upper section 1 of the lattice column and the middle section 2 of the lattice column, between the middle section 2 of the lattice column and the lower section 3 of the lattice column are all connected by a gap adjustment device 12, and the gap adjustment device 12 includes a fixed connection structure 10, and the fixed connection structure 10 and The movable connection structures 9 are relatively spaced apart, and the movable connection structures 9 have an adjustable clamping structure 5 to adjust the gap between the fixed connection structure 10 and the movable connection structure 9 . The gap adjustment device provides the gap required for disassembly and the tight and reliable connection of the three sections required for stress.

The adjustable clamping structure 5 is connected to the movable connecting structure 9, and the end of the adjustable clamping structure 5 is clamped on the end surface of the fixed connecting structure 10, and the adjustable clamping structure 5 can move along the joint with the movable connecting structure 9 to adjust The gap between the fixed connection structure 10 and the movable connection structure 9 .

The adjustable jacking structure 5 can adopt adjusting bolts, and the movable connecting structure 9 is provided with threaded holes, and the adjusting bolts are passed through the threaded holes, and the end of the screw rod is tightened on the end face of the fixed connecting structure 10, and is screwed when the lattice column is installed. The adjustable bolt can adjust the gap between the fixed connection structure 10 and the movable connection structure 9, thereby facilitating dismounting.

The fixed connection structure 10 is fixedly provided with a plurality of evenly distributed inner wire joints 8 , and the inner wire joints 8 and the movable connection structure 9 are connected by fastening connectors 4 .

The gap adjustment device 12 between the upper section 1 of the lattice column and the middle section 2 of the lattice column provides an operating space for the installation and disassembly of the upper section of the lattice column in a limited space. After this section is in close contact with the top of the pipe gallery, fasten it with fastening connectors to ensure the reliable connection between the upper section of the lattice column and the middle section of the lattice column. The gap adjustment device 12 between the lower section 3 of the lattice column and the middle section 2 of the lattice column provides an operating space for the installation and disassembly of the lower section of the lattice column in a limited space, and the lower section of the lattice column and the lattice column After the middle section is in close contact, fasten it with fastening connectors to ensure the reliable connection between the lower section of the lattice column and the middle section of the lattice column.

The inner thread joint 8 is provided with an inner thread blind hole, and the fastening connector 4 is penetrated in the inner thread blind hole, and is reliably connected with the inner thread joint 8 . The fastening connector 4 can adopt fastening bolts.

The axis of the inner thread joint 8 is perpendicular to the end face of the fixed connection structure 10 , and the thickness of the inner thread joint 8 is greater than that of the fixed connection structure 10 . The inner wire joint 8 and the fixed connection structure 10 may be an integrated welding structure. After the middle section of the lattice column is connected with the lattice column of other sections using the gap adjustment device, when the concrete structure is poured, the fastening connector 4 will not be poured into the concrete, which prevents the concrete structure from hindering the removal of the lattice column of other sections later.

The fixed connection structure 10 is fixedly connected to the middle section 2 of the lattice column, and the movable connection structure 9 is fixedly connected to the upper section 1 of the lattice column or the lower section 3 of the lattice column. The upper and lower ends of the middle section 2 of the lattice column are fixed with a fixed connection structure 10, and the bottom of the upper section 1 of the lattice column is fixed with a movable connection structure 9, and the movable connection structure 9 of the upper section 1 of the lattice column is connected with the fixed connection structure at the upper end of the middle section 2 of the lattice column 10 is connected by an adjustable top tightening structure 5 and a fastening connector 4; a movable connection structure 9 is fixed on the top of the lower section 3 of the lattice column, and the movable connection structure 9 of the lower section 3 of the lattice column is connected with the fixed connection structure at the lower end of the middle section 2 of the lattice column 10 are connected by an adjustable jacking structure 5 and a fastening connector 4. The length of the middle section 2 of the lattice column and the thickness of the fixed connection structure at both ends are the thickness of the concrete structure 14 . Through the gap adjustment device between each section, the close connection between different parts is ensured, and reliable support force is provided for the support structure to effectively control the deformation of the support structure; the support gap can be adjusted during disassembly, which ensures the safety of disassembly and reduces the disassembly. cost.

After the upper and lower sections of the lattice column are installed in place, the upper section of the lattice column is in close contact with the bottom of the pipe gallery structure through the adjustable jacking structure, and the lower section of the lattice column is in close contact with the middle section through the adjustable jacking structure. After the adjustment is completed, the fastening connecting piece makes the upper, middle and lower sections reliably connected, and the adjustable top tightening structure 5 and the fastening connecting piece 4 are arranged at intervals.

The outer periphery of the middle section 2 of the lattice column is fixed with a water retaining plate 11, which effectively solves the waterproof problem of the lattice column permanently embedded in the concrete structure. The water baffle 11 is located in the middle of the middle section 2 of the lattice column, and the design of the water baffle meets the corresponding design and specification requirements. The water retaining plate can be assembled and welded by steel plates.

In this application, the movable connection structure and the fixed connection structure may adopt the form of connecting flange structure, and the fixed connection structure is equipped with a joint structure. The movable connection structure and the fixed connection structure can adopt square steel plates, and the joints of the fixed connection structure and the steel plates are welded and fixed as a whole. The inner wire joint can be processed from round steel.

The middle section 2 of the lattice column on the upper and lower sides of the water retaining plate 11 is fixed with vertically distributed longitudinal connecting round bars 7 and transverse connecting round bars 13, and the ends of the longitudinal connecting round bars 7 and the transverse connecting round bars 13 are equipped with steel bar connectors 6. It is used for threaded connection with steel bars. The vertical and horizontal connection round steel is welded to the middle section of the lattice column to meet the water-stop requirements.

There are multiple longitudinal connecting round steels 7 located on the same side of the water retaining plate 11, and their axes are located in the same horizontal plane and parallel to each other; multiple transverse connecting round steels 13 located on the same side of the water retaining plate 11 are provided, and their axes are located in the same horizontal plane and parallel to each other; the longitudinal connecting round steel 7 and the transverse connecting round steel 13 on the same side of the water retaining plate 11 are distributed parallel to each other up and down. In this application, there are two horizontal connecting round bars, which are distributed in parallel, and their axes are on the same horizontal plane. Two longitudinal connecting round bars are provided, and are distributed in parallel. The horizontal plane and the horizontal plane where the axis of the longitudinally connected round steel are located are distributed up and down, so as to facilitate the passage of the longitudinally connected round steel and the transversely connected round steel in the lattice column body.

The set distance between the adjacent vertically connected round bars 7 is consistent with the structural longitudinal steel bar spacing, and the set distance between adjacent transversely connected round steel bars 13 is consistent with the structural transverse steel bar spacing. A plurality of steel bar connectors 6 that are horizontally connected to both ends of the round steel 13 are misplaced, and a plurality of longitudinally connected steel bar connectors 6 at both ends of the round steel 7 are misplaced (that is, the connector end faces of different longitudinally connected round steels or horizontally connected round bars) The planes where they are located are not on the same vertical plane), meeting the specification requirements for steel bar connections.

According to the design thickness of the roof of the section structure, according to the steel bar design drawing, the vertical and horizontal connecting round steel connected by the steel bar connector is welded to the middle section of the lattice column. Among them, 100mm is the distance between the round steel with steel bar connector and the outer surface of the middle section of the lattice column, and the vertical and horizontal connection round steel with steel bar connector is arranged at intervals, and the length difference is not less than 500mm.

The cross-sections of the upper section 1 of the lattice column, the middle section 2 of the lattice column and the lower section 3 of the lattice column are all square structures, which are assembled and welded by angle steel and steel plate.

A method for using an assembled lattice column that is easy to disassemble, comprising the following steps:

Step 1: Fix the lower section of the lattice column, and set up the pouring formwork at intervals above the lower section of the lattice column;

Step 2: Install the middle section of the lattice column between the pouring formwork, the bottom of the middle section of the lattice column is coplanar with the bottom of the pouring formwork, set the water retaining plate in the middle section of the lattice column, and connect the round steel vertically and horizontally;

Step 3: Set a gap adjustment device between the middle section of the lattice column and the lower section of the lattice column, the adjustable top tightening structure adjusts the gap between the fixed connection structure and the movable connection structure, and the fastening connector will fix the connection structure and the movable connection structure Fasten the connection;

Step 4: Install the upper section of the lattice column, and the top of the upper section of the lattice column is in reliable contact with the bottom of the pipe gallery;

Step 5: Set a gap adjustment device between the upper section of the lattice column and the middle section of the lattice column, the adjustable top tightening structure adjusts the gap between the fixed connection structure and the movable connection structure, and the fastening connector will fix the connection structure and the movable connection structure Fasten the connection;

Step 6: Concrete is poured in the pouring formwork, and the concrete is integrated with the middle section of the lattice column. After the concrete strength meets the design requirements, waterproof treatment is done at the connection between the middle section of the lattice column and the upper section of the lattice column.

In order to enable those skilled in the art to understand the technical solution of the present application more clearly, the technical solution of the present application will be described in detail below in conjunction with specific embodiments.

Before erecting the formwork support, install the lower section of the lattice column. Its length should be shorter than the structural clearance, and the difference should meet the minimum clearance for the safe removal of the lower section of the lattice column. The clearance should not be less than 20mm, and the maximum should not exceed 30mm.

After the lower section of the lattice column is installed, install the middle section of the lattice column. The direction of the threaded connector should meet the design requirements of the steel bar of the section structure. The bottom of the middle section of the lattice column is in the same plane as the bottom of the section structure. The adjustable top tightening structure ensures the gap between the middle section and the lower section. To meet the disassembly requirements of the lower section, after the gap adjustment is completed, tighten the fastening parts to make the lower section and the middle section reliably connected.

After installing the middle section of the lattice column, install the upper section of the lattice column and adjust the gap between the upper section and the middle section. The top of the upper section of the lattice column is in reliable contact with the bottom structure of the pipe gallery. The gap should meet the disassembly requirements of the upper section. To meet the disassembly requirements of the upper section, after the gap adjustment is completed, tighten the fastening parts to make the lower section and the middle section reliably connected.

Before pouring concrete, check whether the water retaining plate, the arrangement of steel bar connectors, and the fastening conditions of fastening connectors meet the requirements.

Concrete is poured in the pouring formwork support. After the concrete strength reaches the design strength, the top of the section structure is waterproofed according to the design requirements. The waterproofing of the fixed connection structure at the top of the concrete structure should be done to ensure the waterproofing of the joint between the steel flange and the concrete on the top of the structure. Meet the design requirements.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (7)

1. The assembled lattice column is characterized by comprising an upper lattice column section, a middle lattice column section and a lower lattice column section which are sequentially connected from top to bottom; the upper section of the lattice column is connected with the middle section of the lattice column, and the middle section of the lattice column is connected with the lower section of the lattice column through a gap adjusting device, the gap adjusting device comprises a fixed connecting structure, the fixed connecting structure and the movable connecting structure are arranged at intervals relatively, and the movable connecting structure is provided with an adjustable jacking structure for adjusting the gap between the fixed connecting structure and the movable connecting structure;

the adjustable jacking structure is connected with the movable connecting structure, the end part of the adjustable jacking structure is jacked on the end surface of the fixed connecting structure, and the adjustable jacking structure can move along the joint of the adjustable jacking structure and the movable connecting structure so as to adjust the gap between the fixed connecting structure and the movable connecting structure;

the fixed connection structure is fixedly connected with the middle section of the lattice column, and the movable connection structure is fixedly connected with the upper section of the lattice column or the lower section of the lattice column; a water baffle is fixed on the periphery of the middle section of the lattice column;

the middle sections of the lattice columns on the upper side and the lower side of the water baffle are fixedly provided with vertical connecting round steels and transverse connecting round steels which are vertically distributed, and the ends of the vertical connecting round steels and the transverse connecting round steels are respectively provided with a reinforcing steel bar connector.

2. The assembled lattice column of claim 1, wherein the fixed connection structure is fixedly provided with a plurality of homogeneously distributed internal thread joints, and the internal thread joints are connected with the movable connection structure through fastening connectors.

3. The fabricated lattice column of claim 2, wherein the internal thread connector is provided with an internal thread blind hole, and the fastening connector is threaded into the internal thread blind hole.

4. The fabricated lattice column of claim 2, wherein the axis of the inner wire connector is perpendicular to the end face of the fixed connection structure, and the thickness of the inner wire connector is greater than the thickness of the fixed connection structure; the internal thread joint and the fixed connection structure are of an integrated assembly welding structure.

5. The fabricated lattice column of claim 1, wherein a plurality of longitudinal connecting round steels are arranged on the same side of the water baffle, and the axes of the longitudinal connecting round steels are positioned in the same horizontal plane and are parallel to each other; the transverse connection round steels positioned on the same side of the water baffle are provided with a plurality of transverse connection round steels, and the axes of the transverse connection round steels are positioned in the same horizontal plane and are parallel to each other; the longitudinal connecting round steel and the transverse connecting round steel which are positioned on the same side of the water baffle are distributed in parallel up and down on the plane where the axes of the longitudinal connecting round steel and the transverse connecting round steel are positioned.

6. The fabricated lattice column of claim 5, wherein adjacent longitudinal connecting round steels are spaced apart a set distance, and adjacent transverse connecting round steels are spaced apart a set distance; the steel bar connectors transversely connected with the two ends of the round steel are arranged in a staggered mode, and the steel bar connectors longitudinally connected with the two ends of the round steel are arranged in a staggered mode.

7. A method of using the fabricated lattice column of any one of claims 1-6, comprising the steps of:

step 1: fixedly mounting the lower section of the lattice column, and setting a gap above the lower section of the lattice column at intervals to set up a pouring template;

step 2: the middle sections of the lattice columns are arranged between the pouring templates, the bottoms of the middle sections of the lattice columns are coplanar with the bottoms of the pouring templates, and water baffles and longitudinal and transverse connecting round steel are arranged in the middle sections of the lattice columns;

step 3: a gap adjusting device is arranged between the middle section of the lattice column and the lower section of the lattice column, the adjustable jacking structure adjusts the gap between the fixed connection structure and the movable connection structure, and the fixed connection structure and the movable connection structure are tightly connected by the fastening connecting piece;

step 4: installing an upper section of a lattice column, wherein the top of the upper section of the lattice column is reliably contacted with the bottom of the pipe gallery;

step 5: a gap adjusting device is arranged between the upper section of the lattice column and the middle section of the lattice column, the adjustable jacking structure adjusts the gap between the fixed connection structure and the movable connection structure, and the fixed connection structure and the movable connection structure are tightly connected by the fastening connecting piece;

step 6: and pouring concrete in the pouring template, combining the concrete with the middle section of the lattice column into a whole, and performing waterproof treatment on the joint of the middle section of the lattice column and the upper section of the lattice column after the strength of the concrete reaches the design requirement.

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