CN111287202A - Guide frame system and construction method for controlling centering error of lattice column of subway station - Google Patents

Abstract

The invention discloses a guide frame system and a construction method for controlling the centering error of a lattice column of a subway station. The guide frame system includes a guide frame base and a guide angle steel member. The guide frame base includes a guide frame base part I, a guide frame base The seat part II, the guide frame base part I includes a "[" type structural part and a support part I, the top end of the support part I is inclined outward and fixedly arranged under the end of the "[" type structural part, and the guide frame base part Part II "]" type structure and support II, the top end of support II is inclined outward and fixedly arranged below the end of the "]" type structure, and the "[" type structure of the guide frame base part I and The guide frame base part II "]" type structural member forms a square frame, and the guide angle steel member is fixedly arranged at the inner corner of the square frame of the guide frame base. Using the guide frame system to control the alignment error of the lattice columns in the subway station can ensure that the final alignment error of the lattice columns is within the allowable range of the design specification, and ensure the effective connection between the steel support tie beams and the lattice columns.

Description

Guide frame system and construction method for alignment error control of lattice columns in subway stations

technical field

The invention relates to the technical field of rail transit construction, in particular to a guide frame system and a construction method for controlling the centering error of lattice columns in subway stations.

Background technique

According to previous engineering examples, due to the large lateral span of the station, it is necessary to set up a row of lattice columns in the middle of the station to hold up the steel support, and the uplift piles of the enclosure structure also serve as the column pile foundation. Generally, the size of the column pile is 600*600mm, which is welded by 4 L200*20 equilateral angle steel and siding. The diameter of the lattice column foundation pile is 1200mm, the top of the pile is designed as the first supporting bottom surface, the position where the lattice column is inserted into the foundation pile is 3.0m, and the length of the pile below the bottom of the foundation pit is 20m. The lattice column and the reinforcement cage of the pile body are reliably welded, and are hoisted into the hole together for accurate positioning. However, due to the long length of the foundation pile and the different rigidity of the lattice column and the reinforcement cage of the foundation pile, most of them are hoisted in sections: That is, the foundation pile reinforcement cage is hoisted first, and then the lattice column is hoisted. After the connection between the lattice column and the reinforcement cage is completed, it is lowered to the final position.

At present, in the subsequent excavation process of the foundation pit, it will be found that some lattice columns have a large alignment error, that is, the lattice columns are inconsistent with the contour lines of the bottom surface of the first concrete support, and the angles are different, which affects the subsequent steel structure. The erection of the supporting beams results in the weak connection between the steel supporting beams and the lattice columns, which affects the overall stress system.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a guide frame system and a construction method for controlling the alignment error of lattice columns in subway stations. The centering error is within the allowable range of the design specification, ensuring the effective connection between the steel support connecting beam and the lattice column, and ensuring the safety of the subsequent excavation of the foundation pit and the construction stage of the main structure; and the subway station lattice column disclosed in the present invention is centered. The various devices used in the construction method of error control are detachable, the operation process is simple, the installation and disassembly are convenient, and they have the characteristics of low cost, high efficiency, convenient organization, reasonable process, safety and reliability, etc., and have a wide range of applications.

To achieve the above object, the present invention provides the following technical solutions:

Guide frame system, including guide frame base and guide angle steel member 6, guide frame base includes guide frame base part I2, guide frame base part II3, guide frame base part I2 includes "[" type structural parts and support piece I, the top end of support piece I is inclined outward and fixedly arranged under the end of the "[" type structural member, the guide frame base part II3 "]" type structural member and support piece II, the top end of support piece II It is fixed and installed under the end of the "]" type structural member inclined outward. The "[" type structure of the guide frame base part I2 and the "]" type structural member of the guide frame base part II3 form a square frame, which guides the guide frame. The angle steel member 6 is fixedly arranged at the inner corner of the square frame of the guide frame base.

The base part I2 of the guide frame includes a short crossbar I, a short crossbar II, a long crossbar I, a support leg I, and a support leg II, and the short crossbar I, the long crossbar I, and the short crossbar II are connected at right angles in sequence. A "["-shaped structural member is formed, and the tops of the support leg I and the support leg II are respectively inclined outward and fixedly arranged under the two ends of the long crossbar I to form the support member I, and the guide frame base part II3 includes a short crossbar III, short crossbar IV, long crossbar II, support leg III, support leg IV, short crossbar III, long crossbar II, and short crossbar IV are connected at right angles in turn to form a "]"-shaped structural member, support leg III and support The top ends of the legs IV are respectively inclined outward and fixedly arranged below the two ends of the long crossbar II to form a support II.

Further, the top end of the short crossbar I is fixedly provided with a base subsection connecting plate I, the end top of the short crossbar II is a base subsection connecting plate II, and the end top of the short crossbar III is fixedly provided. There is a base part connecting plate III, the top of the end of the short crossbar IV is fixedly provided with a base part connecting plate IV, the base part connecting plate I and the base part connecting plate III are detachably connected, and the base part is connected. The connecting plate II of the base and the connecting plate IV of the base are detachably connected, and the connecting plate I of the base, the connecting plate II of the base, the connecting plate III of the base and the connecting plate IV of the base form the base Subsection connecting member 5;

Further, symmetrical through holes are provided on the base subsection connecting plate I and the base subsection connecting plate III, and symmetrical through holes are also provided on the base subsection connecting plate II and the base subsection connecting plate IV. Through holes, bolts are arranged in the through holes of the base subsection connecting plate I and the base subsection connecting plate III, and bolts are also arranged in the through holes of the base subsection connecting plate II and the base subsection connecting plate IV.

The guide frame base also includes a gusset bottom surface connecting member 4, and the gusset bottom surface connecting member 4 includes a gusset bottom surface connecting steel plate I, a gusset bottom surface connecting steel plate II, a gusset bottom surface connecting steel plate III, and a gusset bottom surface connecting steel plate IV, The gusset bottom surface connecting steel plate I, the gusset bottom surface connecting steel plate II, the gusset bottom surface connecting steel plate III, and the gusset bottom surface connecting steel plate IV are respectively fixed and arranged at the bottom ends of the supporting leg I, the supporting leg II, the supporting leg III and the supporting leg IV.

The outer wall of the guide angle steel member 6 is fixedly provided with a guide angle steel connection member 7, and the guide angle steel member 6 is fixedly arranged on the inner corner of the square frame of the guide frame base through the guide angle steel connection member 7.

Further, described guide angle steel member 6 comprises guide angle steel I, guide angle steel II, guide angle steel III, guide angle steel IV, guide angle steel I, guide angle steel II, guide angle steel III, guide angle steel IV are respectively located in the square frame of the guide frame base. The outer sides of the guide angle steel I, guide angle steel II, guide angle steel III, and guide angle steel IV are respectively fixed with guide angle steel connection plate I, guide angle steel connection plate II, guide angle steel connection plate III, and guide angle steel connection plate IV. The guide angle steel connection plate I, the guide angle steel connection plate II, the guide angle steel connection plate III, and the guide angle steel connection plate IV are respectively fixed on the top of the four corners of the square frame of the guide frame base by bolts.

Further, the tops of the guide angle steel I and the guide angle steel II are fixedly connected by the horizontal guide angle steel affixing plate I8, and the tops of the guiding angle steel III and the guide angle steel IV are fixedly connected by the horizontal guide angle steel affixing plate II.

The construction method of the alignment error control of the lattice column of the subway station adopts the guide frame system, and the specific steps are as follows:

(1) Calculate and review the coordinates of the lattice column pile position and the guide base point, and set out the lattice column pile axis control point on the construction ground;

(2) Processing and forming lattice columns and column pile reinforcement cages, and at the same time burying casings at lattice column pile sites and carrying out lattice column pile hole construction;

(3) Put the column pile reinforcement cage from the top of the lattice column pile hole into the lattice column pile hole until the column pile reinforcement cage top is located 1.2 ~ 1.5m above the ground, and use section steel poles and sleepers to erect the column pile reinforcement cage on the guardrail Then insert the lattice column into the column pile reinforcement cage from the top of the lattice column pile hole to a preset depth, and fix the column pile reinforcement cage and the lattice column to obtain a lattice column-reinforced cage connection body;

(4) Remove the profiled steel poles and sleepers, lower the lattice column-reinforcing cage connection body to the top of the column pile and the reinforcement cage is located at 0.2-0.3m at the top of the casing, and use the profiled steel poles and sleepers to erect the lattice column-rebar cage connection body On the protective tube, the guide frame base part I and the guide frame base part II of the guide frame base are combined and set at the guide base point, and the lattice column-rebar cage connection body is located at the guide frame base part. In the square frame formed by the "[" type structure of part I and the guide frame base part II "]" type structure;

(5) Take the square frame of the guide frame base as the benchmark, rotate the lattice column-reinforcing bar cage connector to align the square section formed by the four angle steels of the lattice column with the square frame outline of the guide frame base;

(6) Remove the profiled steel poles and sleepers, lower the lattice column-reinforcing cage connection body to the preset depth of the guide angle steel member of the guide frame system below the top of the column pile reinforcement cage inserted into the ground, and use the profiled steel poles and sleepers to connect the lattice columns - The steel cage connecting body is erected on the casing, the guide angle steel members of the guide frame system are inserted into the ground to a preset depth, and then the guide angle steel members are fixed at the inner corner of the square frame of the guide frame base;

(7) Taking the square hole profile formed by the guide angle steel member as the benchmark, the lattice column-rebar cage connection body is rotated to center the square section formed by the four angle steels of the lattice column with the square hole profile;

(8) Remove the profiled steel poles and sleepers, lower the lattice column-reinforcing cage connection body to the top surface of the lattice column to the specified elevation, locate it through the lattice column suspending bars, and pass the profiled steel poles through the lattice column suspending bars, The lattice column-reinforcing cage connection body is erected on the casing through the section steel pole and sleeper. Based on the outline of the square hole formed by the guiding angle steel member, the lattice column-reinforcing cage connection body is rotated to form the four angles of the lattice column. The square section of the square section is aligned with the outline of the square hole to complete the alignment process of the lattice column of the subway station;

(9) Remove the guide frame system.

Further, the diameter of the casing 1 is 20-25 cm larger than the diameter of the lattice column pile, and the top surface of the casing 1 is 20-30 cm higher than the construction platform; the lattice column 10 includes four lattice column angles 12 and several The lattice column affixing plate 11, the four lattice column angle steels 12 form the quadrangular frame of the lattice column 10, the lattice column affixing plate 11 is horizontally fixed between the lattice column angle steels 12, and the lattice column affixing of adjacent layers The spacing of the plates 11 is not more than 800mm.

Compared with the prior art, the beneficial effects of the present invention are as follows:

(1) The present invention adopts the construction method of the guide frame system to control the alignment error of the lattice column of the subway station, which improves the safety of the subsequent earthwork excavation and the construction stage of the main structure. The guide frame system can ensure the alignment of the lattice column. The error is within the tolerance range allowed by the design and specification, and the lattice column after construction is basically consistent with the contour line (designated elevation) of the bottom surface of the first concrete support, which can ensure the installation accuracy of the steel support tie beam, and improve the continuous beam and the continuous beam. The welding strength of the lattice column can effectively ensure the stability of the overall support system;

(2) The present invention adopts the guide frame system to control the centering error of the lattice column of the subway station. The construction method is easy to construct, has lower cost and higher efficiency;

(3) The present invention adopts the guide frame system with strong disassembly and assembly, and high reusability;

(4) The present invention adopts the guide frame system to control the construction method of the alignment error of the lattice column of the subway station, and the organization is convenient, and only part of the process is added in the hoisting and lowering process, which does not affect the drilling construction in the early stage and the subsequent concrete pouring construction, and the construction process is reasonable. , safe and reliable, with a wide range of applications;

(5) All kinds of devices in the construction method of the present invention adopting the guide frame system to control the alignment error of the lattice columns of the subway station are detachable, the operation process is simple, the installation and disassembly are convenient, and the environmental adaptability is increased.

Description of drawings

Figure 1 is a front view of the guide frame system;

Figure 2 is a side view of the guide frame system;

Figure 3 is a top view of the guide frame system;

Figure 4 is a schematic diagram of the connection between the base subsection connecting plate I and the base subsection connecting plate III;

5 is a schematic diagram of the three-dimensional structure of the guide frame base;

Fig. 6 is the enlarged view of A place in Fig. 5;

7 is a schematic diagram of the three-dimensional structure of the guide frame system;

Fig. 8 is an enlarged view at A in Fig. 7;

Figure 9 is a schematic diagram of the construction state of the alignment error control of the lattice column of the subway station during the installation period of the guide angle steel member;

Fig. 10 is a schematic diagram of the construction state of the alignment error control of the lattice column of the subway station during the reference period with the guide angle steel member;

Figure 11 is a schematic diagram of the construction state of the alignment error control of the lattice columns of the subway station during the guide frame removal period;

In the figure: 1-protecting tube, 2-guide frame base part I, 3-guide frame base part II, 4-gusset bottom surface connecting member, 5-base part connecting member, 6-guide angle steel member , 7-Guide angle steel connecting member, 8-Horizontal guide angle steel plate I, 9-Construction ground, 10-Lattice column, 11-Lattice column plate, 12-Lattice column angle, 13-Shaped steel pole, 14- Sleepers, 15-lattice column suspension bars, 16-column pile reinforcement cage.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Embodiment 1: As shown in Figures 1 to 8, the guide frame system includes a guide frame base and a guide angle steel member 6. The guide frame base includes a guide frame base part I2, a guide frame base part II3, and a guide frame. The base part I2 includes a "[" type structural part and a support part I. The top end of the support part I is inclined outward and fixedly arranged under the end of the "[" type structural part. The guide frame base part II3 "]" type Structural part and support part II, the top end of support part II is inclined outward and fixedly arranged under the end of the "]" type structural part, the "[" type structure of the guide frame base part I2 and the guide frame base part II3 The "]" type structural member forms a square frame, and the guide angle steel member 6 is fixedly arranged at the inner corner of the square frame of the guide frame base;

The base part I2 of the guide frame includes a short crossbar I, a short crossbar II, a long crossbar I, a support leg I, and a support leg II. ["-shaped structure, the tops of the support leg I and the support leg II are respectively inclined outward and fixedly arranged under the two ends of the long crossbar I to form the support I, and the guide frame base part II3 includes the short crossbar III, Short crossbar IV, long crossbar II, support leg III, support leg IV, short crossbar III, long crossbar II, and short crossbar IV are connected at right angles in turn to form a "]" type structure, support leg III and support leg IV The top ends of the two are respectively inclined outward and fixedly arranged under the two ends of the long crossbar II to form a support II;

The top of the end of the short crossbar I is fixedly provided with a base subsection connecting plate I, the top of the short crossbar II is fixed with a base subsection connecting plate II, and the top of the end of the short crossbar III is fixedly provided with a base subsection The connecting plate III and the top of the end of the short cross bar IV are fixedly provided with the connecting plate IV of the base part. The base part connecting plate IV is detachably connected, and the base part connecting plate I, the base part connecting plate II, the base part connecting plate III and the base part connecting plate IV form the base part connecting member 5 (see Figure 5);

Symmetrical through holes are provided on the base subsection connecting plate I and the base subsection connecting plate III, and symmetrical through holes are also provided on the base subsection connecting plate II and the base subsection connecting plate IV. Bolts are arranged in the through holes of the connecting plate I of the base and the connecting plate III of the base, and bolts are also arranged in the through holes of the connecting plate II of the base and the connecting plate IV of the base;

The guide frame base also includes a gusset bottom surface connecting member 4, and the gusset bottom surface connecting member 4 includes a gusset bottom surface connecting steel plate I, a gusset bottom surface connecting steel plate II, a gusset bottom surface connecting steel plate III, a gusset bottom surface connecting steel plate IV, and a gusset bottom surface connecting steel plate IV. Bottom connecting steel plate I, gusset bottom connecting steel plate II, gusset bottom connecting steel plate III, and gusset bottom connecting steel plate IV are respectively fixed at the bottom ends of support leg I, support leg II, support leg III and support leg IV;

The outer wall of the guide angle steel member 6 is fixedly provided with a guide angle steel connection member 7, and the guide angle steel member 6 is fixedly arranged on the inner corner of the square frame of the guide frame base through the guide angle steel connection member 7;

Guide angle steel member 6 includes guide angle steel I, guide angle steel II, guide angle steel III, guide angle steel IV, guide angle steel I, guide angle steel II, guide angle steel III, guide angle steel IV respectively located at the four inner corners of the square frame of the guide frame base; Guide angle steel I, guide angle steel II, guide angle steel III, and guide angle steel IV are respectively fixed with guide angle steel connection plate I, guide angle steel connection plate II, guide angle steel connection plate III, guide angle steel connection plate IV, and guide angle steel connection plate I , Guide angle steel connecting plate II, guide angle steel connecting plate III, and guide angle steel connecting plate IV are respectively fixed on the top of the four corners of the square frame of the guide frame base by bolts;

The tops of the guide angle steel I and the guide angle steel II are fixedly connected by the horizontal guide angle steel trim plate I8, and the tops of the guide angle steel III and the guide angle steel IV are fixedly connected by the horizontal guide angle steel trim plate II;

Preferably, the gusset bottom surface connecting steel plate I, the gusset bottom surface connecting steel plate II, the gusset bottom surface connecting steel plate III, and the gusset bottom surface connecting steel plate IV of the gusset bottom surface connecting member are all provided with through holes, which can be made by drilling expansion bolts. The guide frame base is fixed to the ground (see Figure 8);

Gusset bottom surface connecting member of gusset bottom surface connecting steel plate I, gusset bottom surface connecting steel plate II, gusset bottom surface connecting steel plate III, gusset bottom surface connecting steel plate IV and ground connection method, guide frame base part I2, guide frame base For the combined connection method of subsection II3, the connection method between the guide angle steel member and the guide frame base can be detachably assembled by other methods other than bolt connection, and screw connection and anchor bolt connection can be used. Bolt and nut connection, bolt welding screw connection, screw snap connection or self-tapping screw connection are used to connect the two panels;

Preferably, the guide frame base part I2 and the guide frame base part II2 of the guide frame base are welded by steel plates, and the square frame plane formed by the guide frame base part I2 and the guide frame base part II2 The height from the ground is 1-1.2m, the supporting leg I and the supporting leg II are at an angle of 45° with the ground, and the inner side of the square frame is 10-12 cm longer than the side of the lattice column;

Preferably, the length of the guide angle steel member buried in the ground is 1-1.2m, and the top of the guide angle steel member is 50-60cm higher than the top of the guide frame base;

The guide frame base can all be welded with steel plates, and can be a frame structure, a plate structure or other structural forms that can realize the guide frame base.

Embodiment 2: As shown in Figures 9 to 11, the construction method for the alignment error control of lattice columns in a subway station adopts a guide frame system, and the specific steps are as follows:

(1) Calculate and review the coordinates of the lattice column pile position and the guide base point to ensure that the original data are correct, and set out the lattice column pile axis control point on the construction ground 9;

(2) Processing and forming lattice columns and column pile reinforcement cages 16, and at the same time according to the geological conditions, bury casings at lattice column pile sites and carry out lattice column pile hole construction; lattice column pile holes are used for column pile reinforcement cages 16 The final formed hole depth must meet the drawing and design requirements;

The lattice column 10 includes four lattice column angle steels 12 and several layers of lattice column affixing plates 11 . The four lattice column angle steels 12 form a quadrangular frame of the lattice column 10 , and the lattice column affixing plates 11 are horizontally fixed on the Between the lattice column angle steels 12, the position of the lattice column affixing plates 11 can be adjusted according to the specific conditions during construction, but the distance between the lattice column affixing plates 11 of adjacent layers is not greater than 800mm, and the lattice column affixing plates 11 should be avoided. The concrete support position is set, and the contact parts of the lattice column angle steel 12 and the lattice column cladding plate 11 are fully welded; the column pile reinforcement cage 16 needs to mark the position of the main reinforcement at equal intervals on the reinforcement hoop, and first place 6 to 8 main reinforcements one by one. Weld on the reinforcing hoop to form a steel skeleton, and then weld other main bars to the steel skeleton evenly to form the entire column pile steel cage 16 skeleton, and finally, spot-weld the stirrups on the column pile steel cage 16 according to the spacing of the design drawings; grid; All the welding between the structural column and the reinforcement cage are all connected with fully welded threaded steel, and the threaded steel and the angle steel are adhered and welded and then bent down and then welded with the stirrup; the lattice column suspension bars 15 of the lattice column 10 are fixedly arranged on the lattice At the top of 10, the length of lattice column suspending bars 15 is selected according to actual measurement;

The construction of the lattice column pile hole needs to prevent the hole wall from collapsing. When the drilling is deep, the hole wall soil below the groundwater level will collapse into the hole under the hydrostatic pressure, and even the phenomenon of quicksand will occur. Increase the hydrostatic pressure in the hole, prevent the hole from collapsing, isolate the surface water, protect the ground of the orifice, and fix the position of the pile hole. The diameter is 20-25cm larger, and the top surface is about 20-30cm higher than the construction platform; the drilling rig cannot produce displacement or subsidence during the construction of the lattice column pile hole. After the drill bit is lowered to the predetermined depth in the hole, the drill bit is turned and pressurized, the swirling soil is squeezed into the drill tube, after the soil is filled with the drill tube, the drill bit is reversed, the bottom of the drill bit is closed and lifted out of the hole, and then the bottom of the drill bit is automatically opened. Switch on and off, pour out the spoil to form a hole, and pour grouting into the hole during the drilling process or after the drill bit is pulled out of the borehole, and the slurry level shall not be lower than the bottom of the casing; Detect the mud index once every 2 hours, adjust the mud index in time to make it meet the requirements of the specification, pay attention to the change of the soil layer, compare it with the geological map, and reasonably adjust the drilling parameters such as the drilling speed and the drilling pressure;

(3) Select a suitable crane and lifting point, and slowly put the column pile reinforcement cage 16 into the lattice column pile hole from the top of the lattice column pile hole to the top of the column pile reinforcement cage 16 is located 1.2 ~ 1.5m above the construction ground 9, Select the appropriate reinforcement hoop position, use the profiled steel pole 13 and the sleeper 14 to erect the column pile reinforcement cage 16 on the casing; mark the lattice column on the lattice column to insert the lattice column into the column pile reinforcement cage 16 depth position, and then install the lattice column Insert the column pile reinforcement cage 16 from the top of the lattice column pile hole to a preset depth, and the column pile reinforcement cage 16 and the lattice column can be fixedly connected by a full welding method to obtain a lattice column-rebar cage connection body;

(4) Disassemble the profiled steel pole 13 and the sleeper 14, lower the lattice column-rebar cage connection body to the top of the column pile reinforcement cage 16 at 0.2-0.3m at the top of the casing, and use the profiled steel pole 13 and sleeper 14 to connect the lattice column- The steel cage connecting body is erected on the casing, and the guide frame base part I and the guide frame base part II of the guide frame base are combined and set at the guide base point. The specific method is to use threaded connection, that is, use bolt and nut connection. , Bolt welding screw connection, screw snap connection or self-tapping screw connection, first fix the gusset bottom surface connection steel plate I, the gusset bottom surface connection steel plate II, the gusset bottom surface connection steel plate III, and the gusset bottom surface connection steel plate IV on the ground. The guide base point on the base of the guide frame is connected by screw connection, that is, the base of the guide frame base part I2 of the guide frame base is connected by bolt and nut connection, bolt welding screw connection, screw snap connection or self-tapping screw connection. The subsection connecting plate I is fixedly connected to the base subsection connecting plate III of the guide frame base subsection II2, and the screw connection is adopted, that is, the bolt and nut connection, the bolt welding screw connection, the screw snap connection or the self-tapping screw connection. Connect the base part connecting plate II of the guide frame base part I2 of the guide frame base to the base part connecting plate IV of the guide frame base part II2, and make the lattice column-reinforced cage connection body. It is located in the square frame formed by the "[" type structure of the guide frame base part I and the "]" type structure of the guide frame base part II;

(5) Take the square frame of the guide frame base as the benchmark, rotate the lattice column-reinforcing bar cage connector to align the square section formed by the four angle steels of the lattice column with the square frame outline of the guide frame base;

(6) Disassemble the profiled steel poles 13 and sleepers 14, lower the lattice column-reinforcing cage connection body to the preset depth where the top of the column pile reinforcement cage 16 is lower than the guide angle steel member of the guide frame system inserted into the ground, and select an appropriate lattice column At the plate-attaching position, the steel pole 13 and the sleeper 14 are used to set up the lattice column-reinforcing cage connection body on the casing. Since the top of the column pile reinforcement cage 16 is just lower than the depth of the guide angle steel member deep into the ground, it does not affect the guide angle steel member. Insert, as shown in question 9, slowly insert the guide angle steel member of the guide frame system to the ground to a preset depth, and then fix the guide angle steel member on the inner corner of the square frame of the guide frame base, that is, use threaded connection, that is, use bolts and nuts to connect, Guide angle steel connecting plate I and guide angle steel connecting plate II are respectively fixed to the outer sides of guide angle steel I, guide angle steel II, guide angle steel III, and guide angle steel IV by bolt welding screw connection, screw snap connection or self-tapping screw connection. , The guide angle steel connecting plate III and the guide angle steel connecting plate IV are fixedly arranged at the top of the four corners of the square frame of the guide frame base;

(7) Based on the outline of the square hole formed by the guide angle steel member, rotate the lattice column-reinforcing cage connection to center the square section formed by the four angle steels of the lattice column with the outline of the square hole (see Figure 10);

(8) Disassemble the profiled steel pole 13 and the sleepers 14, lower the lattice column-reinforced cage connection body to the top surface of the lattice column to the specified elevation (the position of the bottom surface of the first concrete support), and locate it through the lattice column hanging bars 15, Pass the profiled steel pole 13 through the lattice column suspending bar 15, and set up the lattice column-reinforcing cage connection body on the casing through the profiled steel pole 13 and the sleeper 14, and use the square hole outline formed by the guiding angle steel member as the benchmark, and rotate the latticework. The column-rebar cage connection body aligns the square section formed by the four angle steels of the lattice column with the outline of the square hole, and completes the alignment process of the lattice column in the subway station;

(9) Dismantling the guide frame system: first remove the guide angle steel member, then remove the guide frame base, and finally move to the next lattice column for recycling; remove the guide frame of the guide frame system during the removal period of the subway station lattice column alignment error The schematic diagram of the controlled construction state is shown in Figure 11.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. The leading truck system, its characterized in that: including leading truck base and direction angle steel component (6), the leading truck base includes leading truck base subsection I (2), leading truck base subsection II (3), leading truck base subsection I (2) is including "[" type structure and support piece I, the top of support piece I leans out fixedly to be set up in the end below of "[" type structure, leading truck base subsection II (3) "] type structure and support piece II, the top of support piece II leans out fixedly to be set up in the end below of" ] "type structure, the" [ "type structure of leading truck base subsection I (2) and the" ] "type structure of leading truck base subsection II (3) form square frame, direction angle steel component (6) are fixed to be set up in the interior angle of the square frame of leading truck base.

2. The guide frame system of claim 1, wherein: leading truck base subsection I (2) is including short horizontal pole I, short horizontal pole II, long horizontal pole I, supporting leg II, short horizontal pole I, long horizontal pole I, short horizontal pole II connects at right angle in proper order and forms "[" type structure, the top of supporting leg I and supporting leg II leans out respectively and fixes the formation support piece I below two ends of setting at long horizontal pole I, leading truck base subsection II (3) is including short horizontal pole III, short horizontal pole IV, long horizontal pole II, supporting leg III, supporting leg IV, short horizontal pole III, long horizontal pole II, short horizontal pole IV connects at right angle in proper order and forms "]" type structure, the top of supporting leg III and supporting leg IV leans out respectively and fixes the formation support piece II below two ends of setting at long horizontal pole II.

3. The guide frame system of claim 2, wherein: the fixed base subsection connecting plate I that is provided with in end top of short horizontal pole I, the end top base subsection connecting plate II of short horizontal pole II, the fixed base subsection connecting plate III that is provided with in end top of short horizontal pole III, the fixed base subsection connecting plate IV that is provided with in end top of short horizontal pole IV, base subsection connecting plate I can be dismantled with base subsection connecting plate III and be connected, base subsection connecting plate II can be dismantled with base subsection connecting plate IV and be connected.

4. The guide frame system of claim 3, wherein: the base subsection connecting plate I and the base subsection connecting plate III are provided with symmetrical through holes, the base subsection connecting plate II and the base subsection connecting plate IV are also provided with symmetrical through holes, bolts are arranged in the through holes of the base subsection connecting plate I and the base subsection connecting plate III, and bolts are also arranged in the through holes of the base subsection connecting plate II and the base subsection connecting plate IV.

5. The guide frame system of claim 2, wherein: still include angle brace bottom surface connecting elements (4), angle brace bottom surface connecting elements (4) include angle brace bottom surface connecting steel plate I, angle brace bottom surface connecting steel plate II, angle brace bottom surface connecting steel plate III, angle brace bottom surface connecting steel plate IV, angle brace bottom surface connecting steel plate I, angle brace bottom surface connecting steel plate II, angle brace bottom surface connecting steel plate III, angle brace bottom surface connecting steel plate IV are fixed respectively and are set up in the bottom of supporting leg I, supporting leg II, supporting leg III, supporting leg IV.

6. The guide frame system of claim 1, wherein: the outer wall of the guide angle steel member (6) is fixedly provided with a guide angle steel connecting member (7), and the guide angle steel member (6) is fixedly arranged at the inner angle of the square frame of the guide frame base through the guide angle steel connecting member (7).

7. The guide frame system of claim 6, wherein: the guide angle steel component (6) comprises a guide angle steel I, a guide angle steel II, a guide angle steel III and a guide angle steel IV, and the guide angle steel I, the guide angle steel II, the guide angle steel III and the guide angle steel IV are respectively positioned at four inner angles of a square frame of the guide frame base; guide angle steel I, guide angle steel II, guide angle steel III, the outside of guide angle steel IV is fixed respectively and is provided with guide angle steel connecting plate I, guide angle steel connecting plate II, guide angle steel connecting plate III, guide angle steel connecting plate IV, guide angle steel connecting plate I, guide angle steel connecting plate II, guide angle steel connecting plate III, guide angle steel connecting plate IV sets up the four corners top at the square frame of leading truck base through the bolt fastening respectively.

8. The guide frame system of claim 7, wherein: the top of direction angle steel I, direction angle steel II passes through horizontal direction angle steel batten board I (8) fixed connection, and the top of direction angle steel III, direction angle steel IV passes through horizontal direction angle steel batten board II fixed connection.

9. The construction method for controlling centering errors of the lattice column of the subway station is characterized in that the guide frame system of any one of claims 1-8 is adopted, and the construction method comprises the following specific steps:

(1) calculating and rechecking coordinates of lattice column pile site points and guide base point points, and lofting axial control points of the lattice column pile site points on the construction ground;

(2) processing and forming the lattice column and the upright post pile reinforcement cage, and simultaneously embedding a pile casing at the lattice column pile site and performing lattice column pile hole construction;

(3) putting the upright post pile reinforcement cage into the lattice post pile hole from the upper part of the lattice post pile hole until the top of the upright post pile reinforcement cage is 1.2-1.5 m above the ground, and erecting the upright post pile reinforcement cage on the pile casing by adopting a profile steel carrying pole and a sleeper; inserting the lattice column into the column pile reinforcement cage from the upper part of the lattice column pile hole to a preset depth, and fixedly connecting the column pile reinforcement cage with the lattice column to obtain a lattice column-reinforcement cage connecting body;

(4) disassembling a section steel carrying pole and a sleeper, lowering the lattice column-steel reinforcement cage connector to the top opening of the upright post steel reinforcement cage to be located 0.2-0.3 m at the top end of the pile casing, erecting the lattice column-steel reinforcement cage connector on the pile casing by adopting the section steel carrying pole and the sleeper, combining a guide frame base subsection I and a guide frame base subsection II of a guide frame base at a guide base point, and enabling the lattice column-steel reinforcement cage connector to be located in a square frame formed by a [ -shaped structure and a guide frame base subsection II ']' shaped structural member of the guide frame base subsection I;

(5) taking the square frame of the guide frame base as a reference, rotating the latticed column-steel reinforcement cage connecting body to enable a square section formed by four angle steels of the latticed column to be aligned with the outline of the square frame of the guide frame base;

(6) dismounting the section steel carrying pole and the sleeper, lowering the lattice column-steel reinforcement cage connecting body to a preset depth that the top end of the column pile steel reinforcement cage is lower than a guide angle steel member of the guide frame system and is inserted into the ground, erecting the lattice column-steel reinforcement cage connecting body on a protective cylinder by adopting the section steel carrying pole and the sleeper, inserting the guide angle steel member of the guide frame system into the ground to the preset depth, and then fixedly arranging the guide angle steel member at an inner angle of a square frame of the guide frame base;

(7) taking the profile of a square hole formed by the guide angle steel member as a reference, and rotating the latticed column-steel reinforcement cage connecting body to enable a square section formed by four angle steels of the latticed column to be aligned with the profile of the square hole;

(8) disassembling a section steel carrying pole and a sleeper, lowering the lattice column-steel reinforcement cage connecting body to the top surface of the lattice column to reach a specified elevation, positioning through a lattice column hanging bar, penetrating the section steel carrying pole through the lattice column hanging bar, erecting the lattice column-steel reinforcement cage connecting body on a protective cylinder through the section steel carrying pole and the sleeper, and centering a square section formed by four angle steels of the lattice column with a square hole outline formed by a guide angle steel member as a reference by rotating the lattice column-steel reinforcement cage connecting body to finish the centering process of the lattice column of the subway station;

(9) and (5) dismantling the guide frame system.

10. The subway station lattice column centering error control construction method according to claim 9, characterized in that: the diameter of the pile casing (1) is 20-25 cm larger than that of the lattice column pile, and the top surface of the pile casing (1) is 20-30 cm higher than that of the construction platform; lattice column (10) include 4 lattice column angle steel (12) and a plurality of layers of lattice column batten board (11), and 4 lattice column angle steel (12) form the tetragonal body frame of lattice column (10), and lattice column batten board (11) horizontal fixation sets up between lattice column angle steel (12), and the interval of adjacent layer lattice column batten board (11) is not more than 800 mm.

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