Anti-settlement collaborative supporting structure of cable foundation pit beside subway

Abstract

The utility model discloses an anti-settlement collaborative supporting structure of a cable foundation pit beside a subway, and particularly relates to the technical field of supporting plates, the anti-settlement collaborative supporting structure comprises a supporting plate, a tripod, a bearing platform and a buffer component, one side of the supporting plate is connected with the tripod, and two sides of the supporting plate are provided with matching grooves for connecting other supporting plates; the table surface of the daily bearing table is higher than the plate surface of the supporting plate, energy transmitted to a soil body by subway vibration can be firstly borne, the buffering assembly comprises oil liquid cylinders which are evenly distributed, a reset spring is arranged between a moving disc and the cylinder bottom, and the bearing table extrudes the supporting plate and drives a supporting roller and the moving disc when being vibrated, so that the spring is compressed to store energy, and preliminary buffering is achieved; the flowing holes of the moving disc enable oil liquid to flow to generate damping force when the moving disc slides, energy is further consumed, vibration is relieved, propagation is restrained, excessive loosening of the soil body is prevented, the reset spring and the damping force cooperate, a large amount of vibration energy is absorbed and consumed, vibration impact on the supporting structure is relieved, the settlement rate of the soil body is relieved, and the damage risk of the supporting structure is reduced.

Description

Technical Field

[0001] This utility model relates to the field of support plate technology, specifically to a settlement prevention and collaborative support structure for cable pits next to subway stations. Background Technology

[0002] With the acceleration of urban modernization, subways, as an efficient and convenient mode of urban rail transit, have been widely constructed and developed in major cities. At the same time, to ensure urban power supply, various cable lines are laid underground in a crisscrossing pattern, inevitably leading to situations where subway construction lines are adjacent to or even intersect with existing cable lines. When constructing cable pits around subway stations, many complex and severe technical challenges arise, among which the settlement of the pits is particularly prominent, posing a significant threat to the structural safety of the subway and the normal operation of the cables.

[0003] Traditional cable pit support methods often focus on a single soil-retaining function, such as the common sheet pile support, which forms a continuous wall by driving sheet piles into the ground to prevent lateral displacement of the soil around the pit. However, in the special working conditions next to subways, this support method, which only considers lateral force resistance, has significant shortcomings. On the one hand, the continuous vibration load generated during subway operation is transmitted to the perimeter of the pit through the soil, causing loosening and reorganization of the soil structure. Traditional support methods are unable to effectively buffer and dissipate this vibration energy, leading to accelerated settlement of the soil around the pit, which in turn affects the stability of the subway tunnel structure and may cause safety hazards such as tunnel lining cracking and track deformation, seriously endangering the normal operation of the subway. Therefore, we propose a settlement-prevention and collaborative support structure for cable pits next to subways to solve the above problems. Utility Model Content

[0004] The present invention aims to solve the technical problem that the support is difficult to buffer vibration energy in the prior art.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A settlement-prevention collaborative support structure for cable pits next to subway stations includes a support plate. The support plate has an assembly groove on its surface, and a receiving platform is built into the assembly groove. A buffer assembly is provided between the receiving platform and the bottom of the assembly groove's inner cavity. During normal use, the height of the receiving platform is greater than that of the support plate. The buffer assembly includes multiple oil cylinders, one end of which is fixedly connected to the bottom of the assembly groove's inner cavity. A moving disc is built into each oil cylinder, and a return spring is provided between the moving disc and the bottom of the oil cylinder's inner cavity. The moving disc has multiple through-holes evenly distributed on its surface. A support roller is fixedly connected to the side of the moving disc away from the return spring. A support plate is fixedly connected to one end of the support roller outside the oil cylinder, and the surface of the support plate contacts the bottom of the receiving platform.

[0007] Preferably, a plurality of tripods are fixedly connected to one side of the support plate, and matching grooves for connecting other support plates are opened on both sides of the support plate.

[0008] Preferably, a sliding window is provided at one end of the oil cylinder, and the end of the support roller away from the moving disc extends through the sliding window to the outside of the oil cylinder.

[0009] Preferably, multiple guide rollers are fixedly connected to both sides of the receiving platform, and multiple guide grooves are opened on both sides of the assembly groove wall, with the guide rollers slidably connected to the guide groove wall.

[0010] Preferably, the plurality of oil cylinders are evenly distributed at the bottom of the assembly groove cavity.

[0011] Preferably, the moving disc is slidably connected to the inner wall of the oil cylinder, and a fixed ring groove is formed around the moving disc. A sealing ring is fitted inside the fixed ring groove, and the outer ring wall of the sealing ring is in contact with the inner wall of the oil cylinder.

[0012] Preferably, one end of the reset spring is fitted with a positioning cylinder, and the end of the positioning cylinder away from the reset spring is fixedly connected to the bottom of the inner cavity of the oil cylinder.

[0013] Preferably, the moving disc has a positioning groove on the side near the return spring, and one end of the return spring contacts the bottom of the positioning groove cavity.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] The anti-settlement collaborative support structure for cable foundation pits in this utility model consists of support plates, triangular frames, receiving platforms, buffer components, etc. One side of the support plate is connected to a triangular frame, and matching grooves are provided on both sides for connecting other support plates. The receiving platform is built into the plate surface assembly groove. Normally, the surface of the receiving platform is higher than the surface of the support plate, which can first receive the energy transmitted to the soil by the subway vibration.

[0016] The guide rollers on both sides of the receiving platform cooperate with the guide grooves on the assembly groove wall to ensure its vertical and stable movement without deviation or tilting. The buffer assembly contains a uniformly distributed oil cylinder, and the moving disc inside the cylinder is slidably connected to the inner wall. The sealing is ensured by a fixed ring groove and a sealing ring. There is a return spring between the moving disc and the bottom of the cylinder. When subjected to vibration, the receiving platform squeezes the support plate, which drives the support rollers and the moving disc, causing the spring to compress and store energy, thus providing initial buffering.

[0017] The flow holes in the moving disc allow the oil to flow and generate damping force as it slides, further dissipating energy, slowing down vibration, inhibiting its propagation, and preventing excessive soil loosening. The return spring works in conjunction with the damping force to absorb and dissipate a large amount of vibration energy, reducing the impact on the support structure, protecting its stability, mitigating soil settlement rates, lowering the risk of damage to the support structure, extending its lifespan, and adapting to different vibration frequencies and intensities. It is highly versatile and adaptable, suitable for various related engineering projects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall back structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the assembly structure of the receiving platform and the support plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the buffer component structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the exploded structure of the buffer assembly of this utility model.

[0023] Figure 6 This is a schematic diagram of the second explosion structure of the buffer assembly of this utility model.

[0024] In the diagram: 1. Support plate; 101. Tripod; 102. Matching groove; 103. Assembly groove; 104. Guide groove; 2. Receiving platform; 201. Guide roller; 3. Buffer assembly; 301. Oil cylinder; 302. Moving disc; 303. Fixed ring groove; 304. Sealing ring; 305. Return spring; 306. Positioning cylinder; 307. Positioning groove; 308. Flow hole; 309. Support roller; 310. Sliding window; 311. Support plate. Detailed Implementation

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

[0026] Example: Figures 1-6As shown, this utility model provides a settlement-prevention collaborative support structure for cable pits next to subway stations, including a support plate 1. Multiple tripods 101 are fixedly connected to one side of the support plate 1. Matching grooves 102 for connecting other support plates 1 are provided on both sides of the support plate 1. An assembly groove 103 is provided on the surface of the support plate 1, and a receiving platform 2 is built into the assembly groove 103. A buffer assembly 3 is provided between the receiving platform 2 and the bottom of the inner cavity of the assembly groove 103. During normal use, the height of the receiving platform 2 is greater than that of the support plate 1. When the subway operation generates vibrations that are transmitted to the surrounding soil of the cable pit, the vibration of the soil will first act on the receiving platform 2. Because the receiving platform 2 is higher than the surface of the support plate 1 during normal use and is in direct contact with the soil, it will be the first to bear the vibration energy transmitted from the soil.

[0027] Furthermore, multiple guide rollers 201 are fixedly connected to both sides of the receiving platform 2, and multiple guide grooves 104 are opened on both sides of the assembly groove 103. The guide rollers 201 are slidably connected to the groove walls of the guide grooves 104, and the guide rollers 201 on both sides of the receiving platform 2 are slidably connected to the guide grooves 104 on both sides of the assembly groove 103. During the up-and-down movement of the receiving platform 2, the guide rollers 201 slide along the guide grooves 104, which plays a guiding and limiting role, ensuring the stable movement of the receiving platform 2 in the vertical direction and preventing it from deviating or tilting.

[0028] Furthermore, the buffer assembly 3 is provided with multiple oil cylinders 301, which are evenly distributed at the bottom of the inner cavity of the assembly groove 103. One end of each oil cylinder 301 is fixedly connected to the bottom of the inner cavity of the assembly groove 103. A moving disc 302 is built into each oil cylinder 301, and the moving disc 302 is slidably connected to the inner wall of the oil cylinder 301. A fixing ring groove 303 is formed around the moving disc 302, and a sealing ring 304 is sleeved in the fixing ring groove 303. The outer ring wall of the sealing ring 304 is in contact with the inner wall of the oil cylinder 301. A return spring 305 is installed between the moving disc 302 and the bottom of the inner cavity of the oil cylinder 301. A positioning cylinder 306 is sleeved on one end of the return spring 305. The end of the positioning cylinder 306 away from the return spring 305 is fixedly connected to the bottom of the inner cavity of the oil cylinder 301. A positioning groove 307 is opened on the side of the moving disc 302 near the return spring 305. One end of the return spring 305 contacts the bottom of the inner cavity of the positioning groove 307. When the receiving platform 2 is vibrated, it will press down on the support plate 311 in the buffer assembly 3. The support plate 311 drives the support roller 309 to move downwards, thereby pushing the moving disc 302 to slide within the oil cylinder 301. At this time, the return spring 305 is compressed, producing elastic deformation, converting some of the vibration energy into the elastic potential energy of the spring, thus playing a preliminary buffering role.

[0029] Furthermore, the moving disk 302 has multiple through-holes 308 evenly distributed on its surface. A support roller 309 is fixedly connected to the side of the moving disk 302 away from the return spring 305. A sliding window 310 is provided at one end of the oil cylinder 301. The end of the support roller 309 away from the moving disk 302 extends through the sliding window 310 to the outside of the oil cylinder 301. A support plate 311 is fixedly connected to the end of the support roller 309 outside the oil cylinder 301. The surface of the support plate 311 contacts the bottom of the receiving platform 2. During the sliding of the moving disk 302, the oil in the oil cylinder 301 flows through the through-holes 308 on the surface of the moving disk 302. The oil encounters resistance when flowing through the through-holes 308, thus forming a damping force. This damping force can further dissipate vibration energy and reduce the vibration amplitude of the receiving platform 2. At the same time, the presence of damping force can also suppress the continuous propagation of vibration and prevent the soil from becoming excessively loose due to continuous vibration.

[0030] Through the combined action of the elastic deformation of the return spring 305 in the buffer assembly 3 and the damping force generated by the oil flow, the receiving platform 2 can absorb and dissipate most of the vibration energy, reducing the vibration impact directly acting on the support structure. This reduces the vibration impact on the support structure, thereby protecting the stability of the support structure and effectively mitigating the settlement rate of the soil around the foundation pit.

[0031] The reset spring 305 in the buffer assembly 3 and the damping force generated by the oil flow can work together to effectively absorb the vibration energy generated by the subway operation, reduce the impact of vibration on the support structure and surrounding soil. The damping force formed by the oil flowing in the flow hole 308 has the characteristic of inhibiting the continuous propagation of vibration, avoiding excessive loosening of the soil due to continuous vibration, thereby effectively alleviating the settlement rate of the soil around the foundation pit and improving the stability of the foundation pit.

[0032] By absorbing and consuming vibration energy through the receiving platform 2 and the buffer component 3, the vibration impact directly acting on the support structure is reduced, the risk of damage to the support structure due to vibration is reduced, and the service life of the support structure is extended. This support structure can adapt to vibrations of different frequencies and intensities generated by subway operation, and has strong versatility and adaptability. It can be widely used in anti-settlement support projects for cable pits next to various subways.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A settlement-prevention and collaborative support structure for a subway side cable foundation pit, characterized in that, The utility model provides a support plate, the support plate panel surface is equipped with assembly slot, the assembly slot is built -in with the receiving table, the receiving table and the assembly slot inner chamber bottom are provided with buffer assembly, the receiving table table top is higher than the support plate panel surface in daily use, the buffer assembly includes a plurality of oil liquid cylinder, one end of oil liquid cylinder and assembly slot inner chamber bottom fixed connection, the oil liquid cylinder is built -in with the motion disc, the motion disc and oil liquid cylinder inner chamber bottom are provided with reset spring between, the motion disc disc surface is equipped with a plurality of flow holes that pass through itself, a plurality of flow holes evenly distribute in the motion disc disc surface, the motion disc side away from reset spring is fixedly connected with support roller, support roller one end outside oil liquid cylinder is fixedly connected with support plate, and the support plate panel surface is in contact with receiving table bottom.

2. The anti-settlement collaborative support structure of a subway side cable foundation pit according to claim 1, characterized in that, The support plate is fixedly connected with a plurality of tripods on one side, and matching grooves for connecting other support plates are formed on both sides of the support plate.

3. The anti-settlement collaborative support structure of a subway side cable foundation pit according to claim 1, characterized in that, One end of the oil liquid cylinder is provided with a sliding window, and the end of the support roller away from the motion disc extends to the outside of the oil liquid cylinder through the sliding window.

4. The anti-settlement coordinated support structure of a subway side cable foundation pit according to claim 1, characterized in that, A plurality of guide rollers are fixedly connected to both sides of the receiving table, a plurality of guide grooves are formed on both sides of the assembly slot wall, and the guide rollers are slidingly connected with the guide groove walls.

5. The anti-settlement coordinated support structure of a subway side cable foundation pit according to claim 1, characterized in that, A plurality of oil liquid cylinders are evenly distributed in the assembly slot inner chamber bottom.

6. The anti-settlement coordinated support structure of a subway side cable foundation pit according to claim 1, characterized in that, The motion disc is slidingly connected with the inner wall of the oil liquid cylinder, a fixing ring groove is formed around the motion disc, a sealing ring is sleeved in the fixing ring groove, and the outer ring wall of the sealing ring is in contact with the inner wall of the oil liquid cylinder.

7. The anti-settlement coordinated support structure of a subway side cable foundation pit according to claim 1, characterized in that, One end of the reset spring is sleeved with a positioning cylinder, and the end of the positioning cylinder away from the reset spring is fixedly connected with the inner chamber bottom of the oil liquid cylinder.

8. The anti-settlement coordinated support structure of a subway side cable foundation pit according to claim 1, characterized in that, A positioning groove is formed on the side of the motion disc close to the reset spring, and one end of the reset spring is in contact with the inner chamber bottom of the positioning groove.

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