Adjustable stable civil engineering foundation pit supporting device

Abstract

The utility model discloses an adjustable stable civil engineering foundation pit supporting device, and belongs to the field of civil engineering foundation pit supporting devices.The adjustable stable civil engineering foundation pit supporting device comprises a plurality of supporting steel plates which are spliced with one another; bottom grooves used for installing and fixing the bottom ends of the supporting steel plates and pre-embedded in the bottom of the edge of the foundation pit are formed in the bottoms of the supporting steel plates, a top sealing frame used for installing and fixing the top ends of the supporting steel plates is arranged on the tops of the supporting steel plates, and a steel cable chuck is arranged on the side, close to the exterior of the foundation pit, of the top sealing frame. According to the adjustable stable civil engineering foundation pit supporting device, through the combination of the supporting steel plates and the connecting cables, the problem that a traditional steel support occupies the space and the path in a foundation pit is solved, more convenience is provided for putting of construction equipment and materials, the dismounting process is simpler and more convenient through the combined structure of the supporting steel plates and the connecting cables, and the construction efficiency is improved. Complex operation such as climbing by means of a ladder assembly is not needed, and the construction difficulty and cost are reduced.

Description

Technical Field

[0001] This application relates to the technical field of foundation pit support devices for civil engineering, specifically an adjustable and stable foundation pit support device for civil engineering. Background Technology

[0002] Foundation pit support technology refers to temporary support, reinforcement, protection, and groundwater control measures adopted for the sidewalls and surrounding environment of the foundation pit to protect the construction of the underground main structure and the safety of the surrounding environment. Its main purpose is to ensure the stability and safety of the pit walls during the excavation process, prevent soil collapse, groundwater inflow, and damage to the surrounding environment caused by foundation pit deformation.

[0003] Chinese utility model patent CN221461223U discloses a civil engineering foundation pit support device, relating to the field of foundation pit support technology. It uses a crane to move steel supports downwards to the second layer where they need to be installed. The bracket is then fixed to the uprights, and a new steel support and bracket are installed at the original first-layer position. This avoids the need to lower the steel support that needs to be reinstalled between two existing supports, thus preventing collisions between them and solving the problem of potential dangers during installation. However, steel supports are typically placed between opposing uprights, resulting in several horizontal steel supports occupying space and pathways within the foundation pit, potentially obstructing the placement of equipment or materials. Furthermore, dismantling them later requires climbing ladders, which is cumbersome.

[0004] Therefore, this application provides an adjustable and stable foundation pit support device for civil engineering to solve the above problems. Utility Model Content

[0005] This application provides an adjustable and stable foundation pit support device for civil engineering, which aims to solve the problems mentioned in the background art that existing foundation pit support devices usually set steel supports inside the foundation pit, occupying space and path, easily hindering construction and causing trouble for subsequent dismantling.

[0006] To achieve the above objectives, this application provides the following technical solution: an adjustable and stable foundation pit support device for civil engineering, comprising several interconnected support steel plates. The bottom of each support steel plate has a bottom groove for fixing the bottom ends of the multiple support steel plates and pre-embedded at the bottom edge of the foundation pit. The top of each support steel plate has a capping frame for fixing the top ends of the multiple support steel plates. The capping frame has a cable clamp on the side near the outside of the foundation pit, and a connecting cable is hung on the cable clamp. A tension adjuster for adjusting the cable tension is hung on the end of the connecting cable away from the cable clamp, and the other end of the tension adjuster is used to attach to an external anchor point. In this way, the combination of support steel plates and connecting cables avoids the problem of traditional steel supports occupying space and path within the foundation pit, providing greater convenience for the deployment of construction equipment and materials. The combined structure of support steel plates and connecting cables makes disassembly simpler, eliminating the need for complex operations such as climbing ladders, thus reducing construction difficulty and cost.

[0007] Preferably, the support steel plate has a front-fitting wing and a back-fitting wing on each side, so that adjacent support steel plates are fastened together by the front-fitting wing and the back-fitting wing.

[0008] Preferably, both the bottom groove and the top frame are screwed with bolts that penetrate adjacent positive and negative locking wings.

[0009] Preferably, the tension adjuster includes a first hook and a second hook arranged symmetrically, and an adjusting grip frame with both ends screwed to the first hook and the second hook respectively for moving the two closer together or further apart by rotation.

[0010] Preferably, a reinforcing plate is fixedly connected to the bottom of the groove, and several reinforcing ribs arranged in a linear array are fixedly connected to both sides of the reinforcing plate. A base plate connected to the bottom end of the reinforcing ribs is fixedly connected to the bottom of the reinforcing plate.

[0011] Preferably, the reinforcing plate, the reinforcing rib, and the bottom plate are all pre-embedded at the bottom edge of the foundation pit.

[0012] This adjustable and stable civil engineering foundation pit support device, through the combination of support steel plates and connecting cables, avoids the problem of traditional steel supports occupying space and paths in the foundation pit, providing more convenience for the deployment of construction equipment and materials. The combined structure of support steel plates and connecting cables makes the disassembly process simpler, eliminating the need for complex operations such as climbing ladders, thus reducing construction difficulty and cost.

[0013] This adjustable and stable foundation pit support device for civil engineering uses connecting cables that are connected to external anchor points via tension adjusters to form a tension system, which provides additional reinforcement and stability to the support steel plates, thereby improving the overall stability of the foundation pit support device. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an adjustable and stable foundation pit support device for civil engineering.

[0015] Figure 2 This is a schematic diagram of the exploded structure of an adjustable and stable foundation pit support device for civil engineering.

[0016] Figure 3 A schematic diagram of the bottom trench of an adjustable and stable civil engineering foundation pit support device;

[0017] Figure 4 This is a schematic diagram of the tension adjuster in an adjustable and stable civil engineering foundation pit support device.

[0018] In the picture:

[0019] 1. Support steel plate; 11. Positive snap-fit ​​wing; 12. Reverse snap-fit ​​wing;

[0020] 2. Bottom groove; 21. Reinforcing plate; 22. Reinforcing rib; 23. Base plate;

[0021] 3. Top frame; 31. Cable clamp;

[0022] 4. Connecting cable;

[0023] 5. Tension adjuster; 51. First hook; 52. Second hook; 53. Adjustable grip;

[0024] 6. Locking bolt. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] This embodiment provides an adjustable and stable foundation pit support device for civil engineering, such as... Figures 1-4 As shown, the adjustable and stable civil engineering foundation pit support device includes several support steel plates 1 spliced ​​together. The bottom of the support steel plates 1 is provided with a bottom groove 2 for the bottom of multiple support steel plates 1 to be installed and fixed and pre-embedded at the bottom of the edge of the foundation pit. The top of the support steel plates 1 is provided with a capping frame 3 for the top of multiple support steel plates 1 to be installed and fixed. The capping frame 3 has a steel cable clamp 31 on the side near the outside of the foundation pit. A connecting cable 4 is hung on the steel cable clamp 31. A tension adjuster 5 for adjusting the tension of the steel cable is hung on the end of the connecting cable 4 away from the steel cable clamp 31. The other end of the tension adjuster 5 is used to be attached to an external anchor point.

[0027] In use, the support steel plate 1 is pre-embedded at the bottom edge of the foundation pit through the bottom groove 2, forming a continuous support structure. The top of the support steel plate 1 is fixed by the capping frame 3. The capping frame 3 not only serves to connect and fix, but also has a steel cable clamp 31 on its side near the outside of the foundation pit. The steel cable clamp 31 is used to hang the connecting cable 4. The other end of the connecting cable 4 is connected to the external anchor point through the tension adjuster 5. When the foundation pit is excavated to a certain depth, the support steel plates 1 are spliced ​​and fixed on the bottom groove 2 in sequence to form a preliminary support structure. Subsequently, the capping frame 3 is installed on the top of the support steel plate 1, and the connecting cable 4 is hung through the steel cable clamp 31. The connecting cable 4 is connected to the external anchor point through the tension adjuster 5 to form a stable triangular support system. The tension adjuster 5 can adjust the tension of the connecting cable 4 as needed, thereby adjusting the stability of the support structure.

[0028] Specifically, the support steel plate 1 has a front-fitting wing 11 and a back-fitting wing 12 on both sides, so that adjacent support steel plates 1 can be fastened together by the front-fitting wing 11 and the back-fitting wing 12; through the fastening of the front-fitting wing 11 and the back-fitting wing 12, the connection between adjacent support steel plates 1 is tighter, which improves the strength and stability of the overall support structure.

[0029] Specifically, the sides of the bottom groove 2 and the top frame 3 are screwed with bolts 6 that penetrate the adjacent positive locking wing 11 and negative locking wing 12; the bolts 6 are fixed to the bottom groove 2 and the top frame 3 by means of threaded connection, and penetrate the positive locking wing 11 and negative locking wing 12 of the adjacent support steel plate 1, so as to play a further role in fixing and connecting.

[0030] Specifically, the tension adjuster 5 includes a first hook 51 and a second hook 52 symmetrically arranged, and an adjusting grip 53 with both ends screwed to the first hook 51 and the second hook 52 respectively, for moving the two closer to each other or further apart by rotation; by rotating the adjusting grip 53, the first hook 51 and the second hook 52 can be moved closer to each other or further apart, thereby adjusting the tension of the connecting cable 4. By adjusting the tension of the connecting cable 4, it can adapt to different pit depths and geological conditions, ensuring the stability and safety of the support structure.

[0031] Furthermore, a reinforcing plate 21 is fixedly connected to the bottom of the trench 2, and several reinforcing ribs 22 arranged in a linear array are fixedly connected to both sides of the reinforcing plate 21. A base plate 23 connected to the bottom end of the reinforcing ribs 22 is fixedly connected to the bottom of the reinforcing plate 21. The reinforcing plate 21, the reinforcing ribs 22 and the base plate 23 are all used to be embedded in the bottom edge of the foundation pit. The combined design of the reinforcing plate 21, the reinforcing ribs 22 and the base plate 23 significantly improves the bearing capacity of the trench 2. These reinforcing structures are all used to be embedded in the bottom edge of the foundation pit to enhance the overall strength and stability of the support structure.

[0032] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An adjustable and stable foundation pit support device for civil engineering, comprising a plurality of interlocking support steel plates (1), characterized in that: The bottom of the support steel plate (1) is provided with a bottom groove (2) for the bottom of multiple support steel plates (1) to be installed and fixed and pre-embedded at the bottom of the edge of the foundation pit. The top of the support steel plate (1) is provided with a capping frame (3) for the top of multiple support steel plates (1) to be installed and fixed. The capping frame (3) has a steel cable clamp (31) on the side near the outside of the foundation pit. A connecting cable (4) is hung on the steel cable clamp (31). A tension adjuster (5) for adjusting the tension of the steel cable is hung on one end of the connecting cable (4) away from the steel cable clamp (31). The other end of the tension adjuster (5) is used to be attached to an external anchor point.

2. The adjustable and stable civil engineering foundation pit support device according to claim 1, characterized in that: The support steel plate (1) has a front-fitting wing (11) and a back-fitting wing (12) on both sides respectively, so that adjacent support steel plates (1) can be fastened together by the front-fitting wing (11) and the back-fitting wing (12).

3. The adjustable and stable civil engineering foundation pit support device according to claim 2, characterized in that: Both the bottom groove (2) and the top frame (3) are screwed with bolts (6) that pass through the adjacent positive locking wing (11) and the negative locking wing (12).

4. The adjustable and stable civil engineering foundation pit support device according to claim 3, characterized in that: The tension adjuster (5) includes a first hook (51) and a second hook (52) arranged symmetrically, and an adjustment grip (53) with both ends screwed to the first hook (51) and the second hook (52) respectively for rotating to bring the two closer together or further apart.

5. The adjustable and stable civil engineering foundation pit support device according to claim 4, characterized in that: The bottom of the bottom groove (2) is fixedly connected to a reinforcing plate (21), and a number of reinforcing ribs (22) arranged in a linear array are fixedly connected to both sides of the reinforcing plate (21). The bottom of the reinforcing plate (21) is fixedly connected to a bottom plate (23) connected to the bottom end of the reinforcing ribs (22).

6. The adjustable and stable civil engineering foundation pit support device according to claim 5, characterized in that: The reinforcing plate (21), the reinforcing rib (22) and the bottom plate (23) are all used to be embedded at the bottom edge of the foundation pit.

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