Detachable steel supporting device for foundation pit support

Abstract

The detachable steel supporting device for the foundation pit support comprises a supporting assembly, the supporting assembly comprises a mounting plate seat and a support plate, the mounting plate seat is arranged at the front end of the support plate, an inner groove is formed in the mounting plate seat, a first bolt hole is formed in the mounting plate seat along the rear end of the inner groove, and a second bolt hole is formed in the mounting plate seat along the rear end of the inner groove. A plurality of first bolt holes are formed in the mounting plate base, a plurality of third bolt holes are formed in the enclosure plates, the mounting plate base and the enclosure plates are fixedly connected through bolts, side edge grooves are symmetrically formed in the end faces of the two sides of each enclosure plate respectively, and a stabilizing plate is arranged between every two adjacent enclosure plates. The stabilizing plates are located in the side edge grooves of every two adjacent enclosure plates. The detachable and reusable capacity is achieved, practicability is improved, and therefore the problems that the construction period is long, material waste is large, and reutilization cannot be achieved due to the fact that the mode that prefabricated slabs are built and concrete layers are poured to form an enclosure is adopted are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of steel support devices, specifically a detachable steel support device for foundation pit protection. Background Technology

[0002] Excavation pit support is a key technical measure taken in construction engineering to ensure the safety of underground space construction and the stability of the surrounding environment. In urban construction, high-rise buildings, subway stations, underground garages and other projects often need to excavate pits to obtain underground space. However, excavation will change the stress state of the original soil around the pit, which may cause soil instability and collapse, endangering the safety of construction workers. It may also cause damage to surrounding roads, buildings, underground pipelines, etc., such as road collapse affecting traffic, and tilting and cracking of adjacent buildings. The core goal of excavation pit support is to form a stable and safe retaining structure system to prevent the soil outside the pit from intruding into the pit and to provide a safe environment for construction inside the pit.

[0003] For example, the authorized patent with announcement number CN216765919U (a kind of municipal engineering foundation pit protection): includes a precast slab set on the ground, a connecting rod inserted through the precast slab, and a concrete layer; there is a gap between the precast slab and the side wall of the foundation pit, the precast slab is provided with a through hole, the connecting rod passes through the through hole, the connecting rod is provided with a limiting part, the limiting part is located on the side of the precast slab away from the side wall of the foundation pit, and the limiting part abuts against the precast slab, the connecting rod is inserted into the ground, and the concrete layer is located between the precast slab and the side wall of the foundation pit;

[0004] While the aforementioned existing technologies improve the stability of foundation pit support, the construction process involves building precast slabs and pouring concrete layers to form the support, resulting in a long construction period, significant material waste, and the inability to reuse materials, thus lacking practicality. Therefore, there is an urgent market need to develop detachable steel support devices for foundation pit support to help people solve existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a detachable steel support device for foundation pit enclosure, so as to solve the problems mentioned in the background art, which are long construction cycle, large material waste, inability to be reused, and poor practicality due to the method of building precast slabs and pouring concrete layers to form enclosure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a detachable steel support device for foundation pit enclosure, comprising a support assembly, the support assembly including a mounting plate base and an enclosure plate, the mounting plate base being disposed at the front end of the enclosure plate, the mounting plate base having an inner groove inside, and a bolt hole 1 being disposed along the rear end of the inner groove inside the mounting plate base, the bolt hole 1 being disposed in multiple manner, the enclosure plate having a bolt hole 3 being disposed in multiple manner, and the mounting plate base and the enclosure plate being fixedly connected by bolts.

[0007] Preferably, the two end faces of the enclosure panel are symmetrically provided with side grooves, and a stabilizing plate is provided between two adjacent enclosure panels, the stabilizing plate being located inside the side grooves of the two adjacent enclosure panels.

[0008] Preferably, stabilizing grooves are provided on both the front and rear surfaces of the stabilizing plate, and rubber pads are provided inside the stabilizing grooves, with the rubber pads being bonded to the stabilizing plate.

[0009] Preferably, a placement groove is provided on the rear end face of the mounting plate base.

[0010] Preferably, connecting blocks are fixedly installed on the upper and lower sides of both front ends of the enclosure panel, a connecting plate is provided between the connecting blocks of two adjacent enclosure panels, a connecting groove is provided inside the connecting block, and the two sides of the connecting plate extend into the connecting groove of the two connecting blocks respectively.

[0011] Preferably, bolt holes four are fixedly installed on the front end face of the connecting block, and the connecting block and the connecting plate are fixedly connected by bolts.

[0012] Preferably, a concrete pier is provided below the mounting plate base, and bolt holes are provided along the lower part of the inner groove inside the mounting plate base, and the mounting plate base and the concrete pier are fixedly connected by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The utility model supports the mounting plate base and the enclosure plate, and uses bolts to fix them together. This eliminates the need for on-site concrete pouring, greatly shortening the construction cycle. The bolt hole design allows for multiple disassembly and reuse of the components, reducing material waste. At the same time, the flexible combination of the enclosure plate and the mounting plate base can adapt to different foundation pit size requirements, improving practicality and economy. In addition, when the device is dismantled, all steel components can be recovered by simply removing the bolts, making it easy to reuse. This greatly improves material utilization and reduces project costs.

[0015] (2) By setting a stabilizing plate between two adjacent enclosure panels, the present invention enhances the connection stability between adjacent enclosure panels, so that a tight structure is formed between adjacent enclosure panels, which improves the overall rigidity and deformation resistance of the enclosure structure and increases its practicality.

[0016] (3) The utility model provides stable support for the enclosure panel by providing a placement groove on the rear end face of the mounting plate base, so that the enclosure panel and the mounting plate base fit tightly together, and the force borne by the enclosure panel is evenly transferred to the mounting plate base, and then transferred to the concrete pier below through the mounting plate base, thereby improving the overall stability and load-bearing capacity of the enclosure structure. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the detachable steel support device for foundation pit protection according to this utility model.

[0018] Figure 2 This is a structural schematic diagram of the enclosure panel of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the stabilizing plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting plate base of this utility model.

[0021] In the diagram: 1. Concrete pier; 2. Mounting plate base; 201. Inner groove; 202. Bolt hole one; 203. Placement groove; 204. Bolt hole two; 3. Enclosure plate; 301. Bolt hole three; 302. Side groove; 4. Connecting block; 401. Bolt hole four; 402. Connecting groove; 5. Connecting plate; 6. Stabilizing plate; 601. Stabilizing groove; 7. Rubber pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a detachable steel support device for foundation pit enclosure, including a support assembly. The support assembly includes a mounting plate 2 and an enclosure plate 3. The mounting plate 2 is located at the front end of the enclosure plate 3. The mounting plate 2 has an inner groove 201 inside. Bolt holes 1 202 are provided along the rear end of the inner groove 201 inside the mounting plate 2. Multiple bolt holes 1 202 are provided. Bolt holes 301 are provided inside the enclosure plate 3. Multiple bolt holes 301 are provided. The mounting plate 2 and the enclosure plate 3 are fixedly connected by bolts. Bolt holes 1 202 and bolt holes 301 correspond to each other, which facilitates the connection between the mounting plate 2 and the enclosure plate 3.

[0024] By setting up the mounting plate base 2 and the enclosure plate 3 and using bolts for fixed connection, and with the bolt hole design, the components can be disassembled and reused multiple times, reducing material waste. At the same time, the flexible combination of the enclosure plate 3 and the mounting plate base 2 can adapt to different foundation pit size requirements, improving practicality and economy.

[0025] Please see Figure 1 and Figure 2Side grooves 302 are symmetrically provided on both sides of the enclosure panel 3, and a stabilizing plate 6 is provided between two adjacent enclosure panels 3. The stabilizing plate 6 is located inside the side grooves 302 of the two adjacent enclosure panels 3.

[0026] The installation of the stabilizing plate 6 enhances the connection stability between adjacent retaining plates 3. During the foundation pit retaining process, the retaining structure needs to withstand the soil pressure from the side wall of the foundation pit. If the connection between adjacent retaining plates 3 is not tight, gaps are likely to appear, leading to the overall instability of the retaining structure. However, the cooperation between the side groove 302 and the stabilizing plate 6 makes the adjacent retaining plates 3 form a tight structure, improving the overall rigidity and deformation resistance of the retaining structure.

[0027] Please see Figure 3 Stabilizing grooves 601 are provided on both the front and rear surfaces of the stabilizing plate 6. A rubber pad 7 is provided inside the stabilizing groove 601 and is bonded to the stabilizing plate 6.

[0028] The rubber pad 7 serves as a seal, preventing impurities such as mud, sand, and water from entering the gaps between adjacent retaining panels 3. This avoids uneven stress on the retaining structure caused by the accumulation of impurities, further improving the stability and durability of the retaining structure.

[0029] Please see Figure 4 The rear end face of the mounting plate base 2 is provided with a placement groove 203 for supporting the enclosure plate 3.

[0030] The placement groove 203 provides stable support for the enclosure panel 3. When installing the enclosure panel 3, the operator only needs to place the enclosure panel 3 in the placement groove 203 to quickly determine the installation position of the enclosure panel 3 without complicated measurement and adjustment processes, which improves installation efficiency. In addition, the placement groove 203 can ensure the accuracy of the installation position of the enclosure panel 3, so that the enclosure panel 3 and the mounting plate seat 2 fit tightly together, and the force borne by the enclosure panel 3 is evenly transferred to the mounting plate seat 2, and then transferred to the concrete pier 1 below through the mounting plate seat 2. This improves the overall stability and load-bearing capacity of the enclosure structure and reduces safety hazards caused by installation deviations.

[0031] Please see Figure 1 and Figure 2 Connecting blocks 4 are fixedly installed on the upper and lower sides of the front sides of the enclosure panel 3. A connecting plate 5 is provided between the connecting blocks 4 of two adjacent enclosure panels 3. A connecting groove 402 is provided inside the connecting block 4. The two sides of the connecting plate 5 extend into the connecting groove 402 of the two connecting blocks 4 respectively.

[0032] The cooperation of connecting block 4 and connecting plate 5 can improve the ability to resist deformation and displacement of enclosure plate 3, withstand greater external forces, and increase practicality.

[0033] Please see Figure 1 and Figure 2 Bolt hole 401 is fixedly installed on the front end face of the connecting block 4. The connecting block 4 and the connecting plate 5 are fixedly connected by bolts. Bolt hole 5 is symmetrically arranged at both ends inside the connecting plate 5. The positions of bolt hole 5 and bolt hole 401 correspond to each other, which facilitates the connection between the connecting block 4 and the connecting plate 5 and increases the stability of the two adjacent enclosure plates 3.

[0034] Bolted connection has the advantages of convenient installation and disassembly and strong connection, which facilitates the assembly and disassembly of connecting block 4 and connecting plate 5 and increases practicality.

[0035] Please see Figure 1 A concrete pier 1 is provided below the mounting plate base 2. Bolt holes 204 are provided inside the mounting plate base 2 along the lower part of the inner groove 201. The mounting plate base 2 and the concrete pier 1 are fixedly connected by bolts.

[0036] By fixing the mounting plate base 2 to the concrete pier 1 with bolts, the force borne by the mounting plate base 2 can be evenly transferred to the concrete pier 1, ensuring effective force transmission and distribution. At the same time, the bolt fixing method also facilitates the installation and adjustment of the mounting plate base 2. During the construction process, the position of the mounting plate base 2 can be flexibly adjusted according to the actual situation, improving the flexibility of construction.

[0037] Working principle: In use, the modularly designed mounting plate base 2 and the enclosure plate 3 are bolted together to form the main support structure. The placement groove 203 at the rear end of the mounting plate base 2 provides positioning and stable support for the enclosure plate 3, ensuring effective load transfer. Adjacent enclosure plates 3 are connected to the stabilizing plate 6 through the side groove 302 to form an overall frame. The rubber pad 7 on the stabilizing plate 6 can prevent impurities from seeping in. The front end of the enclosure plate 3 is bolted to the connecting plate 5 through the connecting block 4 to further enhance the lateral connection rigidity. Then, the bottom of the mounting plate base 2 is bolted to the concrete pier 1 to achieve stable installation, which not only ensures the overall stability of the enclosure structure, but also realizes the ability to install quickly, adjust flexibly and reuse.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A detachable steel support device for foundation pit retaining wall, comprising support components, characterized in that: The support assembly includes a mounting plate base (2) and a retaining plate (3). The mounting plate base (2) is located at the front end of the retaining plate (3). The mounting plate base (2) has an inner groove (201) inside. The mounting plate base (2) has a bolt hole 1 (202) along the rear end of the inner groove (201) inside. There are multiple bolt holes 1 (202). The retaining plate (3) has a bolt hole 3 (301) inside. There are multiple bolt holes 3 (301). The mounting plate base (2) and the retaining plate (3) are fixedly connected by bolts.

2. The detachable steel support device for foundation pit protection according to claim 1, characterized in that: The two end faces of the enclosure (3) are respectively provided with side grooves (302), and a stabilizing plate (6) is provided between two adjacent enclosures (3). The stabilizing plate (6) is located inside the side grooves (302) of the two adjacent enclosures (3).

3. The detachable steel support device for foundation pit protection according to claim 2, characterized in that: The stabilizing plate (6) has stabilizing grooves (601) on both the front and rear surfaces. A rubber pad (7) is provided inside the stabilizing groove (601), and the rubber pad (7) is bonded to the stabilizing plate (6).

4. The detachable steel support device for foundation pit protection according to claim 1, characterized in that: The mounting plate base (2) is provided with a placement groove (203) on its rear end surface.

5. The detachable steel support device for foundation pit protection according to claim 1, characterized in that: Connecting blocks (4) are fixedly installed on the upper and lower sides of the front end of the enclosure panel (3). A connecting plate (5) is provided between the connecting blocks (4) of two adjacent enclosure panels (3). A connecting groove (402) is provided inside the connecting block (4). The two sides of the connecting plate (5) extend into the connecting groove (402) of the two connecting blocks (4).

6. The detachable steel support device for foundation pit protection according to claim 5, characterized in that: The front end face of the connecting block (4) is fixedly installed with bolt holes four (401), and the connecting block (4) and the connecting plate (5) are fixedly connected by bolts.

7. The detachable steel support device for foundation pit protection according to claim 1, characterized in that: A concrete pier (1) is provided below the mounting plate base (2). Bolt holes (204) are provided inside the mounting plate base (2) along the lower part of the inner groove (201). The mounting plate base (2) and the concrete pier (1) are fixedly connected by bolts.

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