A method for constructing side wall of capping pit

Abstract

The present invention provides a side wall construction method for a cap pit, the method comprising: S1, excavating a cap pit at a preset position to a preset depth; S2, leveling the bottom, side walls, and bottom plate of the cap pit; S3, pouring a cap concrete cushion layer at the bottom of the cap pit; S4, after the strength of the cap concrete cushion layer meets the requirements, setting a side wall template on the side wall of the cap pit, and a pouring gap is reserved between the two, and the top of the side wall template is higher than the height of the bottom plate concrete cushion layer; S5, pouring the bottom plate concrete cushion layer, and pouring the reserved pouring gap in step S4 at the same time. By setting a side wall template in the cap pit after pouring the cap concrete cushion layer, the cap pit side wall and the basement bottom plate concrete cushion layer can be cast and formed at the same time, which can effectively solve the problems caused by using brick formwork or ordinary wooden formwork, such as extended construction period, high labor cost, and inconvenience in subsequent demoulding. This method not only improves construction efficiency, but also reduces construction costs.

Description

Technical Field

[0001] The invention relates to the field of capping construction, and in particular to a capping pit side wall construction method. Background Art

[0002] Due to their height and weight, high-rise buildings must pay special attention to the strength and stability of their foundation systems during design and construction. As one of the important components of high-rise buildings, the cap plays a key role in evenly transferring the load of the superstructure to the foundation. The cap is a common foundation structure for bearing and distributing loads in engineering buildings. With the continuous development of the economy, the gradual improvement of the infrastructure field and the influence of the concept of building energy conservation, the construction process of the cap foundation has increasingly focused on energy conservation. The cap structure in the relevant technology includes a foundation, pipe piles and a cap body. A cap pit is opened in the foundation. The pipe piles are driven into the cap pit by a pile driver, and one end of the pipe pile protrudes from the pit wall of the cap pit. By pouring concrete into the cap pit, the cap body is formed and fixed to the pipe piles.

[0003] At present, in the process of foundation construction, it is usually necessary to construct a brick formwork on its side wall as the formwork of the foundation, and the brick formwork is set in it as a permanent structure. However, the masonry speed of the brick formwork is slow and it takes a certain amount of time to complete. After masonry, it is necessary to wait for the mortar to harden. In addition, in order to ensure the flatness and smoothness of the concrete surface, it is also necessary to plaster the inside of the brick formwork, which prolongs the overall construction period. At the same time, skilled construction personnel are required to work with auxiliary personnel to complete the corresponding masonry work, resulting in high labor costs. In addition, the brick formwork cannot be reused, which invisibly increases the construction cost. In addition, if ordinary wooden formwork is used, it is not convenient to dismantle it in the narrow space after the foundation is poured, and the waterproof layer is not easy to set. Therefore, it is necessary to propose a new construction method for the side wall of the foundation pit to solve the above problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a method for constructing the side wall of a pedestal pit, so as to solve the problems of long construction period and high labor cost of brick formwork in the prior art, and the problem that ordinary wooden formwork is not convenient to remove in the narrow space after the pedestal is cast, and the waterproof layer is also difficult to set.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for constructing the side wall of a capping pit, the method comprising:

[0006] S1. Excavate the foundation pit at the preset location to the preset depth;

[0007] S2. Level the bottom, side walls and bottom plate of the cap pit;

[0008] S3, pouring the cap concrete cushion layer at the bottom of the cap pit;

[0009] S4. After the strength of the concrete cushion layer of the cap meets the requirements, a side wall formwork is set up on the side wall of the cap pit, and a casting gap is reserved between the two. The top of the side wall formwork is higher than the height of the bottom plate concrete cushion layer;

[0010] S5, pouring the bottom plate concrete cushion layer, and pouring the pouring gap reserved in step S4 at the same time, and after the strength of the concrete reaches the design requirements, the side wall formwork is removed;

[0011] Through the above steps, the construction of the side wall of the foundation pit is completed.

[0012] In the preferred embodiment, the side wall template is an integrated opening and closing template, which includes an opening and closing frame, and a plurality of side mold assemblies and corner mold assemblies arranged outside the opening and closing frame. The corner mold assembly is located at the corner between the plurality of side mold assemblies and can be retracted and expanded. A template adapted to the shape of the pedestal pit is formed by the connection between the side mold assemblies and the corner mold assemblies. The opening and closing frame can control the opening and closing of the side mold assemblies and the corner mold assemblies.

[0013] In the preferred embodiment, the opening and closing frame includes a fixed frame, and a plurality of sliding connection parts are arranged on the outside of the fixed frame, and the sliding connection parts correspond to the side mold assemblies and the corner mold assemblies one by one. The fixed frame is also provided with a push-pull mechanism for controlling the synchronous opening and closing of the side mold assemblies and the corner mold assemblies.

[0014] In a preferred embodiment, the fixed frame includes a bottom support frame and a top support frame which are symmetrically arranged, and a plurality of connecting vertical rods are arranged between the two.

[0015] In the preferred embodiment, the sliding connection portion includes two symmetrically arranged sliding grooves, which are respectively arranged on the outside of the bottom support frame and the top support frame. The top and front end of the sliding groove are both open, and limiting sliding grooves are arranged on the two opposite inner walls.

[0016] In the preferred embodiment, the push-pull mechanism includes a lifting frame that is slidably mounted on all the connecting vertical poles. The outside of the lifting frame is hinged with multiple groups of push-pull rods. The other end of each group of push-pull rods is hinged to the corresponding side mold assembly or corner mold assembly. The bottom support frame or the top support frame is provided with multiple push-pull hydraulic cylinders with telescopic ends connected to the lifting frame.

[0017] In a preferred embodiment, the fixed frame body further includes a plurality of lifting ears arranged on the top of the top support frame.

[0018] In the preferred embodiment, the side mold assembly includes a side mold, the inner side of the side mold is provided with a sliding block slidably inserted in the sliding groove, both sides of the end of the sliding block are provided with a first limiting sliding block slidably connected to the limiting sliding groove, and the push-pull rod is hinged to the inner side of the side mold.

[0019] In the preferred embodiment, the corner mold assembly includes a corner mold, both ends of the corner mold are hinged with a flip connecting template, the connection between the flip connecting template and the corner template and the side template is provided with a slope surface for easy opening and closing, the inner side of the corner mold assembly is provided with a push-pull frame slidably inserted in the sliding groove, the push-pull rod is hinged with the push-pull frame, and the push-pull frame is provided with a control mechanism for controlling the opening and closing of the flip connecting template.

[0020] In the preferred embodiment, the push-pull frame includes a reinforcing plate arranged on the inner side of the corner template, and a C-shaped frame arranged on the back side of the reinforcing plate, the C-shaped frame is slidably inserted in two corresponding sliding grooves, and the upper and lower sides of the front end of the C-shaped frame are both provided with second limit sliders slidably connected to the limit sliding grooves, and the inner bottom wall and the inner top wall opposite to the C-shaped frame are both provided with push-pull sliding grooves;

[0021] The control mechanism includes a moving beam movably arranged in the push-pull frame, and moving sliders slidably connected to the push-pull slide grooves are arranged at the upper and lower ends of the moving beam. A plurality of pushing hydraulic cylinders are arranged on the back of the reinforcing plate, and the telescopic ends of the pushing hydraulic cylinders are connected to the moving beam. A plurality of control rods are hinged on both sides of the moving beam, and the other ends of the control rods are hinged to the corresponding flip connection templates.

[0022] The present invention provides a method for constructing the side wall of a pedestal pit. By arranging a side wall formwork in the pedestal pit after pouring a pedestal concrete cushion layer, the side wall of the pedestal pit and the concrete cushion layer of a basement floor can be cast and formed simultaneously. The problems caused by using brick formwork or ordinary wooden formwork, such as extended construction period, high labor cost and inconvenience in subsequent demoulding, can be effectively solved. The method not only improves the construction efficiency, but also reduces the construction cost, and also facilitates the subsequent setting of a waterproof layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 It is a cross-sectional structural diagram of the capping pit of the present invention;

[0025] Figure 2 This is a diagram of the side wall template mold closing structure of the present invention;

[0026] Figure 3 This is a side wall template mold closing structure diagram of the present invention;

[0027] Figure 4 The present invention Figure 2 A top view of the structure;

[0028] Figure 5 The present invention Figure 3 A top view of the structure;

[0029] Figure 6 This is a structural diagram of the opening and closing frame of the present invention;

[0030] Figure 7 This is an exploded structural diagram of the opening and closing frame of the present invention;

[0031] Figure 8 It is a structural diagram of the corner mold assembly of the present invention;

[0032] Fig. 9 This is an exploded structural diagram of the corner mold assembly of the present invention;

[0033] Fig.10 It is a structural diagram of the side mold assembly of the present invention;

[0034] In the figure: capping pit 1; pile head 2; capping concrete cushion 3; side wall formwork 4; opening and closing frame 40; fixed frame 400; bottom support frame 4001; top support frame 4002; connecting pole 4003; lifting lug 4004; sliding connection part 401; sliding groove 4010; limiting sliding groove 4011; push-pull mechanism 402; lifting frame 4020; push-pull rod 4021; push-pull hydraulic cylinder 4022; side form assembly 41; Side formwork 410; sliding block 411; first limiting slider 412; corner formwork assembly 42; corner formwork 420; reinforcing plate 4220; C-shaped frame 4221; second limiting slider 4222; push-pull slide 4223; flip connection formwork 421; push-pull frame 422; control mechanism 423; push hydraulic cylinder 4230; moving beam 4231; moving slider 4232; control rod 4233; bottom plate concrete cushion layer 5. DETAILED DESCRIPTION

[0035] Example 1

[0036] like Figure 1 As shown, a method for constructing a side wall of a capping pit comprises:

[0037] S1. Excavate the foundation pit 1 to a preset depth at a preset position to ensure that the size and depth of the foundation pit meet the requirements on the design drawings and that the height of the pile head 2 meets the requirements.

[0038] S2. Level the bottom, side walls and bottom plate of the cap pit 1, wherein the bottom plate is the basement bottom plate, i.e. the bottom plate around the cap pit, to ensure that its flatness meets the design requirements for cushion layer pouring.

[0039] S3. Pour the cap concrete cushion layer 3 at the bottom of the cap pit 1. The thickness of the cushion layer should meet the design requirements to enhance the bearing capacity and waterproof performance of the bottom of the foundation pit.

[0040] S4, after the strength of the cap concrete cushion layer 3 meets the requirements, a side wall formwork 4 is arranged on the cap pit 1 side wall, and a pouring gap is reserved between the two. The top of the side wall formwork 4 is higher than the height of the bottom plate concrete cushion layer 5, so as to facilitate the subsequent concrete pouring operation, ensuring that the side wall concrete can be poured smoothly and reach the designed height;

[0041] S5, pouring the bottom plate concrete cushion layer 5, and pouring the pouring gap reserved in step S4 at the same time, ensuring that the concrete can fully fill the space between the side wall formwork 4 and the side wall of the pedestal pit 1, making the pedestal structure more stable, and after the strength of the concrete reaches the design requirements, the side wall formwork 4 can be removed.

[0042] Through the above steps, the construction of the side wall of the foundation pit is completed.

[0043] Such a design can effectively save the masonry time and labor costs of the brick formwork, and realize the simultaneous casting and forming of the side wall of the cap pit 1 and the concrete cushion layer of the basement floor. This method effectively solves the problems of long construction period and high labor cost of the brick formwork. In addition, by using the formed side wall concrete of the cap pit 1 as the cap formwork, compared with ordinary wooden formwork, there is no problem of demolding in a small space. The side wall formwork 4 can also be demolded in the space of the cap pit 1 where the cap has not yet been cast, and it is also convenient to set a waterproof layer on the side wall concrete of the cap pit 1.

[0044] Through the above steps, the problems caused by using brick formwork or ordinary wooden formwork can be effectively solved, such as extended construction period, high labor cost and inconvenience in subsequent demoulding. This method not only improves construction efficiency, but also reduces construction costs, and is also convenient for the subsequent waterproof layer setting.

[0045] Example 2

[0046] Further illustrate with reference to Example 1, Figure 2-10 As shown in the structure, in order to further improve the efficiency of disassembly and assembly of the side wall formwork 4, this embodiment proposes a side wall formwork 4 that is an integrated opening and closing formwork.

[0047] The side wall formwork 4 includes an opening and closing frame body 40, and a plurality of side formwork assemblies 41 and a corner formwork assemblies 42 arranged outside the opening and closing frame body 40. The corner formwork assemblies 42 are located at the corners between the plurality of side formwork assemblies 41 and can be retracted and extended. A formwork adapted to the shape of the foundation pit 1 is formed through the connection between the side formwork assemblies 41 and the corner formwork assemblies 42. The opening and closing frame body 40 can control the opening and closing of the side formwork assemblies 41 and the corner formwork assemblies 42.

[0048] It should be noted that the opening and closing frame 40 is polygonal, and the number of side mold assemblies 41 and corner mold assemblies 42 is adapted to the shape of the base pit 1. The specific number of edges of the opening and closing frame 40 is the sum of the number of side mold assemblies 41 and corner mold assemblies 42. For example, the base pit 1 in this embodiment is rectangular, so the number of side mold assemblies 41 and corner mold assemblies 42 are four each, and the opening and closing frame 40 is octagonal, and the eight edges correspond to the side mold assemblies 41 and the corner mold assemblies 42, respectively.

[0049] With such a design, the opening and closing frame 40 can be used to control the side mold assembly 41 and the corner mold assembly 42 to achieve opening and closing of the mold, and the retractable corner mold assembly 42 provides space for the opening and closing of the side mold assembly 41 and the corner mold assembly 42.

[0050] In the preferred embodiment, the opening and closing frame 40 includes a fixed frame 400, and a plurality of sliding connection parts 401 are arranged on the outside of the fixed frame 400. In this embodiment, the number of the sliding connection parts 401 is eight, and the sliding connection parts 401 correspond to the side mold assemblies 41 and the corner mold assemblies 42 one by one. The fixed frame 400 is also provided with a push-pull mechanism 402 for controlling the synchronous opening and closing of the side mold assemblies 41 and the corner mold assemblies 42.

[0051] Among them, the fixed frame 400 includes a symmetrically arranged bottom support frame 4001 and a top support frame 4002, and a plurality of connecting poles 4003 are arranged between the two. In this embodiment, the number of the connecting poles 4003 is four, and the bottom support frame 4001 and the top support frame 4002 are connected by the connecting poles 4003.

[0052] Through the above description, the bottom support frame 4001 and the top support frame 4002 in this embodiment are both octagonal frames, and the eight sliding connection parts 401 are respectively arranged on the eight edges thereof. Through the design of the octagonal frame, the floor space occupied by the side wall formwork 4 can be effectively reduced, and at the same time, unnecessary interference between the side wall formwork 4 and the pile head 2 can be avoided.

[0053] In addition, the sliding connection part 401 specifically includes two symmetrically arranged sliding grooves 4010, and the two sliding grooves 4010 are respectively arranged on the outside of the bottom support frame 4001 and the top support frame 4002. The top and front end of the sliding groove 4010 are both open, and limiting sliding grooves 4011 are arranged on the two opposite inner walls.

[0054] Secondly, the push-pull mechanism 402 includes a lifting frame 4020 that is slidably mounted on all the connecting poles 4003. The shape of the lifting frame 4020 is the same as that of the bottom support frame 4001 and the top support frame 4002, and holes are provided thereon for the connecting poles 4003 to pass through. The outside of the lifting frame 4020 is hinged with multiple groups of push-pull rods 4021, and the other end of each group of push-pull rods 4021 is hinged to the corresponding side mold assembly 41 or corner mold assembly 42. The bottom support frame 4001 or the top support frame 4002 is provided with multiple push-pull hydraulic cylinders 4022 whose telescopic ends are connected to the lifting frame 4020. In this embodiment, the number of push-pull hydraulic cylinders 4022 is four, and they are arranged on the top support frame 4002, and the push-pull hydraulic cylinders 4022 are staggered with the connecting poles 4003.

[0055] When in use, the lifting frame 4020 can slide up and down on the outside of the connecting vertical pole 4003 by pushing and pulling the push-pull hydraulic cylinder 4022, and then the side mold assembly 41 and the corner mold assembly 42 can be pushed and pulled synchronously by using the push-pull rod 4021, thereby realizing the opening and closing of the side mold assembly 41 and the corner mold assembly 42.

[0056] In the preferred embodiment, the fixed frame 400 also includes a plurality of lifting ears 4004 arranged on the top of the top support frame 4002. In this embodiment, the number of the lifting ears 4004 is four, and they are arranged alternately with the push-pull hydraulic cylinders 4022 on the top of the top support frame 4002. The four lifting ears 4004 can achieve the effect of lifting the entire template structure.

[0057] In the preferred embodiment, the side mold assembly 41 includes a side mold plate 410, and a sliding block 411 slidably inserted in the sliding groove 4010 is arranged on the inner side of the side mold plate 410. There are two sliding blocks 411, which correspond to the two sliding grooves 4010 respectively, so as to realize the sliding connection relationship between the side mold plate 410 and the sliding groove 4010. Both sides of the end of the sliding block 411 are provided with a first limiting sliding block 412 which is slidably connected to the limiting sliding groove 4011. The sliding connection between the first limiting sliding block 412 and the limiting sliding groove 4011 is convenient for limiting and avoiding falling off. The push-pull rod 4021 is hinged to the inner side of the side mold plate 410, and then when the lifting frame 4020 is lifted or lowered, the side mold plate 410 can be pushed and pulled to realize the opening and closing effect.

[0058] It should be noted that the number of a set of push-pull rods 4021 corresponding to the side template 410 is not less than two.

[0059] In the preferred embodiment, the corner mold assembly 42 includes a corner template 420. In the present embodiment, the corner template 420 is an arrow-shaped template with a ninety-degree corner. If the foundation pit 1 is of other shapes, the corner template 420 may also be a plane template.

[0060] Both ends of the corner template 420 are hinged with a flip connection template 421, and the flip connection template 421 can be rotated around the hinge point to realize its own opening and closing of the mold, so that when the mold is opened, the space required for the expansion and contraction of the corner mold component 42 and the side mold component 41 can be left between the corner mold component 42 and the side mold component 41.

[0061] The connection between the flip connection template 421 and the corner template 420 and the side template 410 is provided with a slope surface that is easy to open and close, thereby effectively avoiding the occurrence of interference and appropriately improving the sealing of the connection.

[0062] The inner side of the corner mold assembly 42 is provided with a push-pull frame 422 which is slidably inserted in the sliding groove 4010, thereby realizing a sliding connection with the sliding groove 4010. The push-pull rod 4021 is hinged to the push-pull frame 422, and then the corner mold assembly 42 is pushed and pulled by lifting and lowering the lifting frame 4020 to realize the opening and closing effect.

[0063] The push-pull frame 422 is provided with a control mechanism 423 for controlling the opening and closing of the flip connection template 421 .

[0064] It should be noted that the size of the sliding groove 4010 is compatible with the push-pull frame 422 of the corresponding corner mold assembly 42 or the sliding block 411 of the side mold assembly 41.

[0065] In the preferred embodiment, the push-pull frame 422 includes a reinforcing plate 4220 arranged on the inner side of the corner template 420, and a C-shaped frame 4221 arranged on the back side of the reinforcing plate 4220. In this embodiment, the reinforcing plate 4220 is arranged at the corner on the inner side of the corner template 420 and is triangular in shape, which can effectively enhance the structural strength of the corner template 420.

[0066] The C-shaped frame 4221 is slidably inserted into the two corresponding sliding grooves 4010, and the upper and lower sides of the front end of the C-shaped frame 4221 are provided with a second limiting sliding block 4222 which is slidably connected to the limiting sliding groove 4011, thereby realizing a stable sliding connection between the side mold assembly 41 and the sliding groove 4010.

[0067] Push-pull slide grooves 4223 are provided on the inner bottom wall and the inner top wall opposite to each other of the C-shaped frame 4221 .

[0068] The control mechanism 423 includes a moving beam 4231 movably arranged in the push-pull frame 422. The upper and lower ends of the moving beam 4231 are provided with moving sliders 4232 slidably connected to the push-pull slide groove 4223. The moving beam 4231 can achieve a sliding effect in the frame groove of the C-shaped frame 4221.

[0069] A plurality of pushing hydraulic cylinders 4230 are arranged on the back of the reinforcing plate 4220 . In the present embodiment, there are two pushing hydraulic cylinders 4230 . The telescopic ends of the pushing hydraulic cylinders 4230 are connected to the moving beam 4231 , thereby pushing the moving beam 4231 to slide in the C-shaped frame 4221 .

[0070] Multiple control rods 4233 are hinged on both sides of the movable beam 4231. In the present embodiment, there are two control rods 4233 on one side, and the other end of the control rod 4233 is hinged to the corresponding flip connection template 421. Therefore, when the push hydraulic cylinder 4230 pushes and pulls the movable beam 4231 to move, the movable beam 4231 can control the flip connection template 421 through the control rod 4233 to realize the opening and closing effect.

[0071] In this embodiment, by providing an integrated opening and closing side wall formwork 4, the effect of rapid formwork and demolding of the side wall of the foundation pit 1 can be achieved, and at the same time, it can be circulated and used in different foundation pits 1, which greatly improves the formwork efficiency and further improves the construction efficiency of this method.

[0072] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A method for constructing the side wall of a capping pit, characterized in that: The method includes: S1. Excavate the foundation pit at the preset location to the preset depth; S2. Level the bottom, side walls and bottom plate of the cap pit; S3, pouring the cap concrete cushion layer at the bottom of the cap pit; S4. After the strength of the concrete cushion layer of the cap meets the requirements, a side wall formwork is set up on the side wall of the cap pit, and a casting gap is reserved between the two. The top of the side wall formwork is higher than the height of the bottom plate concrete cushion layer; S5, pouring the bottom plate concrete cushion layer, and pouring the pouring gap reserved in step S4 at the same time, and after the strength of the concrete reaches the design requirements, the side wall formwork is removed; Through the above steps, the side wall construction of the cap pit is completed; The side wall template is an integrated opening and closing template, which includes an opening and closing frame, and a plurality of side mold assemblies and corner mold assemblies arranged outside the opening and closing frame. The corner mold assembly is located at the corner between the plurality of side mold assemblies and can be retracted and extended. A template adapted to the shape of the cap pit is formed by the connection between the side mold assembly and the corner mold assembly. The opening and closing frame can control the opening and closing of the side mold assembly and the corner mold assembly. The opening and closing frame includes a fixed frame, and a plurality of sliding connection parts are arranged on the outside of the fixed frame, and the sliding connection parts correspond to the side mold assembly and the corner mold assembly one by one. The fixed frame is also provided with a push-pull mechanism for controlling the synchronous opening and closing of the side mold assembly and the corner mold assembly; The fixed frame includes a bottom support frame and a top support frame which are symmetrically arranged, and a plurality of connecting vertical rods are arranged between the two; The sliding connection part includes two symmetrically arranged sliding grooves, and the two sliding grooves are respectively arranged outside the bottom support frame and the top support frame; The push-pull mechanism includes a lifting frame that is slidably mounted on all the connecting vertical rods, and the outside of the lifting frame is hinged with multiple groups of push-pull rods, and the other end of each group of push-pull rods is hinged with the corresponding side mold assembly or corner mold assembly; The corner mold assembly includes a corner template, both ends of the corner template are hinged with a flip connection template, the inner side of the corner mold assembly is provided with a push-pull frame, the push-pull rod is hinged with the push-pull frame, and the push-pull frame is provided with a control mechanism for controlling the opening and closing of the flip connection template; The push-pull frame includes a reinforcement plate arranged on the inner side of the corner template and a C-shaped frame arranged on the back side of the reinforcement plate. The C-shaped frame is slidably inserted into two corresponding sliding grooves. The opposite inner bottom wall and inner top wall of the C-shaped frame are both provided with push-pull sliding grooves. The control mechanism includes a moving beam movably arranged in the push-pull frame, and moving sliders slidably connected to the push-pull slide grooves are arranged at the upper and lower ends of the moving beam. A plurality of pushing hydraulic cylinders are arranged on the back of the reinforcing plate, and the telescopic ends of the pushing hydraulic cylinders are connected to the moving beam. A plurality of control rods are hinged on both sides of the moving beam, and the other ends of the control rods are hinged to the corresponding flip connection templates.

2. A method for constructing a side wall of a capping pit according to claim 1, characterized in that: The top and the front end of the sliding groove are both open, and limited sliding grooves are arranged on two opposite inner walls.

3. A method for constructing a cap pit side wall according to claim 1, characterized in that: A plurality of push-pull hydraulic cylinders whose telescopic ends are connected to the lifting frame are arranged on the bottom support frame or the top support frame.

4. A method for constructing a cap pit side wall according to claim 1, characterized in that: The fixed frame body also includes a plurality of lifting ears arranged on the top of the top supporting frame.

5. A method for constructing a cap pit side wall according to claim 2, characterized in that: The side mold assembly includes a side mold, the inner side of the side mold is provided with a sliding block slidably inserted in the sliding groove, both sides of the end of the sliding block are provided with a first limiting sliding block slidably connected to the limiting sliding groove, and the push-pull rod is hinged to the inner side of the side mold.

6. A method for constructing a cap pit side wall according to claim 5, characterized in that: The connection between the flip connection formwork and the corner formwork and the side formwork is provided with a slope surface for easy opening and closing.

7. A method for constructing a cap pit side wall according to claim 2, characterized in that: The upper and lower sides of the front end of the C-shaped frame are both provided with second limiting sliding blocks slidably connected with the limiting sliding grooves.

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