A foundation pit optimization cross bracing device

Abstract

The utility model discloses a kind of foundation pit optimization cross bracing device, comprising: support device, steel pipe, jacking, the end of the screw rod of jacking is inserted into steel pipe and is fixedly connected with steel pipe by adjusting nut, the jacking plate of jacking is fixedly connected with support device, the support device is hung on the enclose purlin of both sides of foundation pit.The utility model of a kind of foundation pit optimization cross bracing device simple structure, convenient to use, can promote foundation pit support stability and construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering construction technology, specifically relating to an optimized cross bracing device for foundation pits. Background Technology

[0002] In foundation pit support, steel pipes are often used as horizontal bracing, in conjunction with vertical supports and walers, to support the soil on both sides of the pit and ensure the safety of the excavation. During construction, the excavation width cannot be precisely maintained due to various factors, resulting in inconsistent horizontal bracing lengths. Often, horizontal bracing needs to be fabricated according to the actual width of the pit, leading to low reuse rates and hindering cost savings. Furthermore, the connection between the horizontal bracing and walers is often welded, making installation and dismantling cumbersome and slowing down construction. Additionally, the fixed dimensions of welded horizontal bracing mean that small deformations in the pit later can cause some bracing to fail to bear load, compromising the overall stability of the foundation pit.

[0003] Therefore, to solve the above problems, it is necessary to provide an optimized cross bracing device for foundation pits to improve the utilization rate of cross bracing, save engineering costs, simplify the installation and dismantling process of cross bracing, improve on-site construction efficiency, and adjust the length of cross bracing according to the axial force monitoring data of cross bracing during construction to ensure that the cross bracing is subjected to force that meets the design requirements and ensures the stability of foundation pit support. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an optimized cross bracing device for foundation pits that is simple in structure, easy to use, and can improve the stability and construction efficiency of foundation pit support.

[0005] The technical solution of this utility model is as follows:

[0006] An optimized cross bracing device for foundation pits includes: a support device, a steel pipe, and a top support. The threaded rod of the top support is inserted into the end of the steel pipe and fixedly connected to the steel pipe through an adjusting nut. The top support plate of the top support is fixedly connected to the support device. The support device is suspended on the walers on both sides of the foundation pit.

[0007] Furthermore, the support device includes: a lifting hole, a hook, a backrest plate, a support plate, and an anti-slip plate. The lifting hole is located at the top of the hook. The hook has an L-shaped plate structure. The horizontal end of the hook is fixedly connected to the top of the back of the backrest plate. The bottom of the backrest plate is vertically fixedly connected to one end of the support plate. Two anti-slip plates are provided between the backrest plate and the support plate. The anti-slip plates have a triangular plate structure.

[0008] Furthermore, the hook is fixedly connected to the waler, and a top support plate is provided between the two anti-slip plates. The top support plate is connected to the backrest plate, the support plate, and the anti-slip plate.

[0009] Furthermore, the steel pipe is a thick-walled hollow steel pipe.

[0010] The beneficial effects of this utility model are:

[0011] 1. Easy installation and flexible adjustment: The screw rod of the top support is inserted into the end of the steel pipe and fixedly connected to the steel pipe through the adjusting nut. The length and support force of the cross brace can be easily adjusted without disassembling the main structure, adapting to different foundation pit widths and construction requirements, and improving construction flexibility.

[0012] 2. Stable stress and high safety: The top support plate and the support device form an integral fixed structure, and the supporting force is evenly transferred to the walers on both sides of the foundation pit, which effectively prevents local stress concentration, reduces the risk of waler deformation or damage, and improves the overall structural stability.

[0013] 3. Anti-slip and anti-fall design: Two triangular anti-slip plates are installed in the support device, which can effectively increase the contact friction with the top support plate and the waler, prevent displacement or slippage during construction, and improve the safety of operation;

[0014] 4. Quick installation and strong adaptability: The hook has an L-shaped plate structure, which can be quickly installed on walers of different sizes with the hanging holes, without the need for additional welding or drilling, reducing on-site installation time and labor costs;

[0015] 5. Compact structure and good durability: The steel pipe adopts a thick-walled hollow structure, which not only ensures high load-bearing capacity, but also reduces the overall weight, making it easy to handle and lay out, while extending its service life and adapting to complex construction environments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a foundation pit optimization cross bracing device according to this utility model.

[0017] Figure 2 yes Figure 1 An enlarged schematic diagram of point A.

[0018] Figure 3 This is a schematic diagram of the planar structure of a foundation pit optimization cross bracing device according to this utility model.

[0019] Figure 4 This is a structural schematic diagram of the support device of a foundation pit optimization cross bracing device according to this utility model.

[0020] In the diagram: 1-support device, 2-steel pipe, 3-top support, 4-waler, 5-support pile, 6-foundation pit, 7-bracket, 11-lifting hole, 22-hook, 33-backrest plate, 44-support plate, 55-anti-slip plate. Detailed Implementation

[0021] like Figure 1-4As shown, an optimized cross bracing device for foundation pits includes: a support device 1, a steel pipe 2, and a top support 3. The threaded rod of the top support 3 is inserted into the end of the steel pipe 2 and fixedly connected to the steel pipe 2 through an adjusting nut. The top support plate of the top support 3 is fixedly connected to the support device 1. The support device 1 is suspended on the walers 4 on both sides of the foundation pit (the walers 4 are placed on the corbels 7 on the support piles 5).

[0022] Preferably, the support device 1 includes: a lifting hole 11, a hook 22, a backrest plate 33, a support plate 44, and an anti-slip plate 55. The lifting hole 11 is located at the top of the hook 22. The hook 22 has an L-shaped plate structure. The horizontal end of the hook 22 is fixedly connected to the top of the back of the backrest plate 33. The bottom of the backrest plate 33 is vertically fixedly connected to one end of the support plate 44. Two anti-slip plates 55 are provided between the backrest plate 33 and the support plate 44. The anti-slip plates 55 have a triangular plate structure.

[0023] Preferably, the hook 22 is fixedly connected to the waler (4), and a top support plate 3 is provided between the two anti-slip plates 55. The top support plate is connected to the backrest plate 33, the support plate 44, and the anti-slip plate 55.

[0024] Preferably, the steel pipe 2 is a thick-walled hollow steel pipe.

[0025] In use, first suspend the support device 1 on the walers 4 on both sides of the foundation pit, ensuring that the support devices 1 on both sides are on the same axis, so as to ensure that the cross bracing is perpendicular to the walers 4 when it is installed later, thus enhancing the stability of the support. After the support device 1 is installed, assemble the steel pipe 2 and the top support 3 in the foundation pit. Insert the screw of the top support 3 into the steel pipe 2, and adjust the adjusting nut of the top support 3 so that the length of the assembled cross bracing is slightly less than the width between the walers 4 on both sides of the foundation pit. Then place the assembled cross bracing on the support device 1, and adjust the adjusting nut of the top support 3 to lengthen the cross bracing, so that the top plate of the top support 3 is in close contact with the back plate of the support device 1 and the walers of the foundation pit, thereby enabling the cross bracing to bear force and play a supporting role, ensuring the stability of the foundation pit support.

[0026] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A device for optimizing struts in a foundation pit, characterized in that, include: Support device (1), steel pipe (2), top support (3), the screw of the top support (3) is inserted into the end of the steel pipe (2) and fixedly connected to the steel pipe (2) through the adjusting nut, the top support plate of the top support (3) is fixedly connected to the support device (1), and the support device (1) is suspended on the walers (4) on both sides of the foundation pit.

2. A bracing device for use in the optimisation of a pit according to claim 1 wherein, The support device (1) includes: a lifting hole (11), a hook (22), a backrest plate (33), a support plate (44), and an anti-slip plate (55). The lifting hole (11) is located at the top of the hook (22). The hook (22) is an L-shaped plate structure. The horizontal end of the hook (22) is fixedly connected to the top of the back of the backrest plate (33). The bottom of the backrest plate (33) is vertically fixedly connected to one end of the support plate (44). Two anti-slip plates (55) are provided between the backrest plate (33) and the support plate (44). The anti-slip plates (55) are triangular plate structures.

3. A bracing system for use in the excavation of a foundation pit according to claim 2, wherein, The hook (22) is fixedly connected to the waler (4), and a top support plate (3) is provided between the two anti-slip plates (55). The top support plate is connected to the backrest plate (33), the support plate (44), and the anti-slip plate (55).

4. A bracing system for use in the excavation of a foundation pit according to claim 1 wherein, The steel pipe (2) is a thick-walled hollow steel pipe.

Images