A foundation pit supporting stable support structure

Abstract

The utility model provides a kind of foundation pit support stable support structure, it is related to construction appliance technical field, to solve the functional imperfection of current support structure, the pressure of foundation pit side wall soil once exceeds its maximum support range, collapse will appear, at this moment, on-site construction personnel can not be in time to react, it is easy to cause unnecessary casualty problem, include: main body;The main body is rectangular plate structure, and the both ends of main body are provided with through-hole A at equal intervals, and the both sides of main body are provided with guide slot symmetrically, and the support plate of sliding installation is set in the rear side of main body, and alarm module is set between base plate and support plate, when the pressure of foundation pit side wall soil mass increases and pushes support plate to move to trigger alarm module, alarm module can send early warning signal to construction personnel through wireless network remote, let construction personnel know collapse risk in advance and evacuate in time, effectively improve the security of support device use, reduce the probability of casualty accident.

Description

Technical Field

[0001] This utility model belongs to the field of construction tools technology, and more specifically, it relates to a stable support structure for foundation pit support. Background Technology

[0002] In the construction of urban buildings, transportation hubs, underground utility tunnels and other infrastructure, foundation pit engineering is an indispensable key link. It is mainly a temporary pit formed by excavating downwards from the ground to meet the construction needs of underground structures. Because the excavation of foundation pits will disrupt the stress balance of the original strata, the soil in the pit wall is prone to collapse, displacement and other instability phenomena. This will not only affect the normal construction of underground structures, but may also cause serious safety hazards to the surrounding environment such as surrounding buildings, roads and underground pipelines. Therefore, after the foundation pit is excavated, its side walls are usually supported.

[0003] Based on existing technology, it has been found that the existing foundation pit support structures have some shortcomings: First, the safety protection performance of the existing support structure is not perfect. When the pressure generated by the soil on the side wall of the foundation pit exceeds the maximum bearing limit of the support structure, the foundation pit will collapse. Such collapse accidents are often sudden, and on-site construction personnel usually have difficulty making an effective emergency response in a short period of time, which can easily cause serious safety accidents such as casualties. Secondly, the existing support structure can only achieve the passive support function of the foundation. Due to the poor plastic deformation capacity of the soil outside the sidewall of the foundation pit, the soil is prone to displacement under soil pressure. The existing support structure cannot effectively restrain such soil displacement. As the displacement accumulates, it will further aggravate the stress burden on the support structure, which greatly increases the risk of foundation pit collapse. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model relates to a foundation pit support and stabilization structure, which solves the problems of the imperfect functionality of existing support structures. Once the pressure of the soil on the sidewall of the foundation pit exceeds its maximum support range, collapse will occur. At this time, the on-site construction personnel may not have time to react, which may easily cause unnecessary casualties. Moreover, the existing support structure can only provide simple support, and the soil outside the support structure has poor plasticity. Under greater pressure, it is prone to displacement, which increases the risk of collapse.

[0005] The first aspect of this utility model provides a stable support structure for foundation pit support, achieved by the following specific technical means: A foundation pit support and stabilization structure includes: The main body is a rectangular plate structure with through holes A equidistantly arranged at both ends and guide grooves symmetrically arranged on both sides. A support plate is provided on the rear side of the main body, which can move back and forth along the interior of the main body. A spring is provided between the support plate and the base plate inside the main body. A guide block on the outside of the support plate slides in the guide groove. An anchor rod on the support plate passes through the through hole A and the base plate. A fixed seat is provided at the lower end of the main body. The ear plate at the outer end of the fixed seat rotates in cooperation with the fixed shaft on the main body, and the insertion rod at the outer end of the movable plate on the fixed seat is inserted into the positioning hole on the fixed shaft.

[0006] Furthermore, a fixed shaft is fixedly installed at the bottom of the main body, and positioning holes are equidistantly arranged on the fixed shaft.

[0007] Furthermore, a base plate is slidably disposed inside the rear side of the main body, and a screw is rotatably disposed on the front side of the base plate. The screw is threadedly connected to the main body. An alarm module is fixedly installed on the front side of the base plate. The alarm module is adjacent to the front end face of the support plate. A trigger switch is disposed at the front end of the alarm module. The alarm module is connected to the terminal via a wireless network.

[0008] Furthermore, through holes B are provided at equal intervals at both ends of the support plate, and sealing plugs are inserted into the through holes B.

[0009] Furthermore, guide blocks are symmetrically arranged on both sides of the outer side of the support plate, and anchor rods are inserted inside the support plate, with the anchor rods penetrating through the through hole B.

[0010] Furthermore, ear plates are fixedly installed at both ends of the rear side of the fixing base, and grounding nails are inserted into both sides of the fixing base. A rectangular groove is provided in the middle of the interior of the fixing base.

[0011] Furthermore, a movable plate is slidably disposed in the rectangular groove inside the fixed base, and two sets of insert rods are fixedly installed at both ends of the rear side of the movable plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In this device, a sliding support plate is installed on the rear side of the main body, and an alarm module is installed between the base plate and the support plate. When the soil pressure on the side wall of the foundation pit increases and pushes the support plate to move to trigger the alarm module, the alarm module can remotely send a warning signal to the construction personnel via wireless network, so that the construction personnel can be informed of the risk of collapse in advance and evacuate in time, which effectively improves the safety of the support device and reduces the probability of casualties.

[0013] 2. In this device, by opening through holes in the main body and support plate, an appropriate number of anchor rods can be inserted according to actual needs. The anchor rods are inserted through the through holes into the side wall of the foundation pit, which can adapt to various construction environment conditions. This not only enhances the support effect of the support plate on the side wall of the foundation pit under different environments, but also improves the stability of the soil around the support plate, effectively restrains the lateral displacement of the soil, alleviates the stress burden on the support structure, and minimizes the risk of foundation pit collapse. Attached Figure Description

[0014] Those skilled in the art will gain a better understanding of the present invention through the accompanying drawings, and the advantages of the present invention will be more clearly demonstrated. The drawings described herein are for illustrative purposes only for the selected embodiments and not for all possible implementations, and are not intended to limit the scope of the present invention.

[0015] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a rear-view structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the connection structure between the main body and the support plate of this utility model.

[0019] Figure 5 This is a schematic diagram of the connection structure between the main body and the fixing plate of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Main body; 101. Through hole A; 102. Guide groove; 103. Fixed shaft; 1031. Positioning hole; 104. Base plate; 1041. Alarm module; 2. Support plate; 201. Through hole B; 2011. Sealing plug; 202. Guide block; 203. Anchor rod; 3. Fixed seat; 301. Ear plate; 302. Grounding nail; 303. Movable plate; 3031. Insert rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown: This utility model provides a foundation pit support and stabilization structure, including: a main body 1; the main body 1 is a rectangular plate structure, with through holes A101 equidistantly arranged at both ends of the main body 1, and guide grooves 102 symmetrically arranged on both sides of the main body 1; a support plate 2 is arranged on the rear side of the main body 1, the support plate 2 can move back and forth along the interior of the main body 1, a spring is arranged between the support plate 2 and the base plate 104 inside the main body 1, the guide block 202 outside the support plate 2 slides in cooperation with the guide groove 102, and the anchor rod 203 on the support plate 2 passes through the through hole A101 and the base plate 104; a fixed seat 3 is arranged at the lower end of the main body 1, the ear plate 301 at the outer end of the fixed seat 3 rotates in cooperation with the fixed shaft 103 on the main body 1, and the insertion rod 3031 at the outer end of the movable plate 303 on the fixed seat 3 is inserted in cooperation with the positioning hole 1031 on the fixed shaft 103.

[0023] As a second embodiment of this application, based on embodiment one, such as Figure 4 and Figure 5 As shown, a fixed shaft 103 is fixedly installed at the bottom of the main body 1, and positioning holes 1031 are equidistantly arranged on the fixed shaft 103; a base plate 104 is slidably arranged inside the rear side of the main body 1, and a screw is rotatably arranged on the front side of the base plate 104. The screw is threadedly connected to the main body 1. An alarm module 1041 is fixedly installed on the front side of the base plate 104. The alarm module 1041 is adjacent to the front end face of the support plate 2. A trigger switch is provided at the front end of the alarm module 1041. The alarm module 1041 is connected to the terminal via a wireless network; the main body 1 is provided, and the support plate 2 can be slidably arranged on the main body 1; a through hole A101 is provided, and the anchor rod 203 can be inserted through the through hole A101. The device includes: a guide groove 102 for sliding the support plate 2 along the guide groove 102 on the main body 1; a fixed shaft 103 for rotating the main body 1 onto the upper end of the fixed seat 3; a positioning hole 1031 for fixing the main body 1 on the fixed seat 3 by inserting a rod 3031 into the positioning hole 1031; a base plate 104 for adjusting the position of the base plate 104 within the main body 1 to compress the two sets of springs on its rear side, thereby changing the support for the support plate 2; and an alarm module 1041 for remotely alerting construction personnel via a wireless network when the alarm module 1041 is triggered.

[0024] This application involves sliding a support plate 2 on the main body 1, and placing a base plate 104 inside the main body 1 in contact with the support plate 2 via a spring. An alarm module 1041 is installed between the base plate 104 and the support plate 2. When the inner wall of the pit shows a tendency to collapse, the pressure of the soil on the side wall of the pit on the base plate 104 will increase, and push the base plate 104 to move within the main body 1. After moving a certain distance, the alarm module 1041 will be triggered, and the on-site construction personnel can evacuate in time after receiving the alarm signal.

[0025] As a third embodiment of this application, based on embodiment one, as follows: Figure 3 and Figure 4 As shown, the support plate 2 has through holes B201 equidistantly arranged at both ends, and sealing plugs 2011 are inserted into the through holes B201; guide blocks 202 are symmetrically arranged on both sides of the outer side of the support plate 2, and anchor rods 203 are inserted inside the support plate 2, with the anchor rods 203 penetrating through the through holes B201; the support plate 2 is provided to support the side wall of the foundation pit by attaching the support plate 2 to it; the through holes B201 allow the anchor rods 203 to be inserted into the side wall of the foundation pit through the through holes B201; the sealing plugs 2011 can seal unused through holes B201 to prevent soil from entering the position between the main body 1 and the support plate 2 through the through holes B201; the guide blocks 202 are provided to slide and engage with the main body 1 by slidingly connecting the guide blocks 202 to the guide grooves 102; the anchor rods 203 are provided to improve the stability of the support plate 2 in supporting the side wall of the foundation pit by penetrating the support plate 2 and inserting the anchor rods 203 into the side wall of the foundation pit.

[0026] This application improves the support effect of the support plate 2 by opening through holes A101 and through holes B201 at equal intervals on the main body 1 and the support plate 2. When supporting the side wall of the foundation pit, a corresponding number of anchor rods 203 are inserted into the side wall of the foundation pit through the through holes A101 and through holes B201. This not only improves the support effect of the support plate 2, but also improves the stability of the soil near the support plate 2. The number of anchor rods 203 inserted on this device can be determined according to the actual use.

[0027] As a fourth embodiment of this application, based on embodiment one, as follows: Figure 5As shown, ear plates 301 are fixedly installed at both ends of the rear side of the fixed base 3, and grounding nails 302 are inserted into both sides of the fixed base 3. A rectangular groove is provided in the middle of the interior of the fixed base 3. A movable plate 303 is slidably arranged in the rectangular groove inside the fixed base 3. Two sets of insert rods 3031 are fixedly installed at both ends of the rear side of the movable plate 303. The fixed base 3 is provided so that the main body 1 can be installed on the ground. The ear plates 301 are provided so that the fixed base 3 can be rotatably engaged with the fixed shaft 103. The grounding nails 302 are provided so that the fixed base 3 can be fixed on the ground by inserting the grounding nails 302 into the ground. The movable plate 303 is provided so that the main body 1 can be fixed on the fixed base 3 by inserting the insert rods 3031 into the positioning holes 1031.

[0028] The specific usage and function of this embodiment are as follows: In this utility model, such as Figures 1 to 5 As shown, the main body 1 is placed at the preset installation position at the bottom of the foundation pit using the fixing base 3. The fixing base 3 is securely installed by inserting the grounding nails 302 on both sides of the fixing base 3 into the ground. The sealing plugs 2011 at the corresponding positions are removed. After adjusting the main body 1 to match the support angle of the foundation pit sidewall, the insertion rod 3031 at the outer end of the movable plate 303 is inserted into the corresponding positioning hole 1031 on the fixed shaft 103 to fix the main body 1 to the fixing base 3. Then, the screw on the front side of the base plate 104 inside the main body 1 is rotated to adjust the front and rear position of the base plate 104 inside the main body 1, so that the spring between the base plate 104 and the support plate 2 is compressed to the preset elastic force to set the initial support force of the support plate 2 and make the support plate 2 fit against the foundation pit sidewall. According to the actual force requirements of the foundation pit sidewall, the through hole A101 on the main body 1 and the through hole B201 on the support plate 2 are selected to insert the anchor rod 20 3. The support plate 2 is inserted into the pit sidewall by sequentially passing through through hole A101, base plate 104 and through hole B201, thus completing the stable connection between the support plate 2 and the pit sidewall. When the soil pressure on the pit sidewall increases, the soil pushes the support plate 2 to move into the main body 1 along the guide groove 102. The support plate 2 squeezes the spring between the base plate 104 and the support plate 2. If the pressure continues to increase and causes the support plate 2 to move to touch the trigger switch of the alarm module 1041 on the front side of the base plate 104, the alarm module 1041 sends a warning signal to the terminal through the wireless network. After receiving the signal, the construction personnel take emergency measures in time. The unused through hole B201 is always sealed by the sealing plug 2011 to prevent soil from entering between the main body 1 and the support plate 2 and affecting the operation of the structure. If it is necessary to adjust the support angle, the plug rod 3031 can be pulled out, the main body 1 can be rotated to a suitable angle and then the plug rod 3031 can be reinserted and fixed.

[0029] The foregoing disclosure provides illustrations and descriptions, but is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and variations can be made based on the above disclosure, or modifications and variations can be derived from the practice of the embodiments.

[0030] Even though specific combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various embodiments. In fact, many of these features can be combined in ways not specifically recited in the claims and / or not specifically disclosed in the specification. Although each dependent claim listed below may depend directly on only one claim, the disclosure of various embodiments includes each dependent claim in combination with every other claim in the claim set.

Claims

1. A foundation pit support and stabilization structure, comprising: Main body (1); the main body (1) is a rectangular plate structure, characterized in that through holes A (101) are provided at equal intervals at both ends of the main body (1), and guide grooves (102) are symmetrically provided on both sides of the main body (1); a support plate (2) is provided on the rear side of the main body (1), the support plate (2) can move back and forth along the interior of the main body (1), a spring is provided between the support plate (2) and the base plate (104) inside the main body (1), and a guide block (20) is provided outside the support plate (2). 2) It slides with the guide groove (102), and the anchor rod (203) on the support plate (2) passes through the through hole A (101) and the base plate (104); the lower end of the main body (1) is provided with a fixed seat (3), the ear plate (301) at the outer end of the fixed seat (3) rotates with the fixed shaft (103) on the main body (1), and the insertion rod (3031) at the outer end of the movable plate (303) on the fixed seat (3) is inserted into the positioning hole (1031) on the fixed shaft (103).

2. The foundation pit support and stabilization structure according to claim 1, characterized in that, The bottom of the main body (1) is fixedly provided with a fixed shaft (103), and positioning holes (1031) are provided at equal intervals on the fixed shaft (103).

3. The foundation pit support and stabilization structure according to claim 1, characterized in that, A base plate (104) is slidably disposed inside the rear side of the main body (1). A screw is rotatably disposed on the front side of the base plate (104), and the screw is threadedly connected to the main body (1). An alarm module (1041) is fixedly installed on the front side of the base plate (104). The alarm module (1041) is adjacent to the front end face of the support plate (2). A trigger switch is disposed on the front end of the alarm module (1041). The alarm module (1041) is connected to the terminal through a wireless network.

4. The foundation pit support and stabilization structure according to claim 1, characterized in that, The support plate (2) has through holes B (201) at equal intervals at both ends, and a sealing plug (2011) is inserted into the through hole B (201).

5. The foundation pit support and stabilization structure according to claim 4, characterized in that, Guide blocks (202) are symmetrically arranged on both sides of the outer side of the support plate (2), and anchor rods (203) are inserted inside the support plate (2), with the anchor rods (203) penetrating through the through hole B (201).

6. The foundation pit support and stabilization structure according to claim 1, characterized in that, Ear plates (301) are fixedly installed at both ends of the rear side of the fixed seat (3), and grounding nails (302) are inserted on both sides of the fixed seat (3). A rectangular groove is provided in the middle position inside the fixed seat (3).

7. The foundation pit support and stabilization structure according to claim 6, characterized in that, A movable plate (303) is slidably disposed in the rectangular groove of the fixed base (3), and two sets of insert rods (3031) are fixedly installed at both ends of the rear side of the movable plate (303).

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