A soil reinforcement device for ground-connected walls close to subways

Abstract

The present invention discloses a soil reinforcement device for a ground-connected wall adjacent to a subway, specifically a soil reinforcement device for a ground-connected wall adjacent to a subway, comprising an L-shaped support plate, a plurality of relatively arranged fixing seats fixedly connected to the L-shaped support plate, a cavity being arranged in the fixing seat, a mounting block being fixedly connected to the inner wall of the cavity, a telescopic rod being fixedly connected to the mounting block, an end of the telescopic rod away from the mounting block being fixedly connected to a sliding block, a spring being sleeved on the telescopic rod, two ends of the spring being fixedly connected to the mounting block and the sliding block respectively, and one end of the sliding block being fixedly connected to a first anchor rod, the present invention enables the spiral blades on the anchor rod to generate a reaction force to stretch or support the fixing seat through the setting of a fixing mechanism and an elastic mechanism, thereby preventing the fixing seat from rising or sinking, thereby improving the stability of the reinforcement device, and being able to play a certain elastic buffering role on the reinforcement device, thereby improving the stability of the reinforcement device.

Description

Technical Field

[0001] The invention relates to a soil reinforcement device for a ground-connected wall close to a subway, belonging to the technical field of building construction. Background Art

[0002] With the rapid development of urban rail transit construction, shield tunnel construction often needs to pass through dense buildings, existing railway lines, or be close to permanent buildings and municipal utilities that must be protected. During construction in these cases, it is necessary to strictly control the settlement and displacement of the strata to avoid disasters such as ground collapse, excessive ground settlement, and ground displacement caused by shield construction, which pose a threat to the safety of surrounding buildings, underground structures and pipelines.

[0003] However, when the soil of the existing ground-connected wall becomes loose, the fixing parts will be tightened, causing the fixing parts to become loose. After the fixing parts become loose, they will be pulled out of the soil and no longer have a fixing effect. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a soil reinforcement device for a ground-connected wall adjacent to a subway.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a soil reinforcement device for a ground-connected wall close to a subway, comprising an L-shaped support plate, a plurality of relatively arranged fixing seats are fixedly connected to the L-shaped support plate, a cavity is provided in the fixing seat, a mounting block is fixedly connected to the inner wall of the cavity, a telescopic rod is fixedly connected to the mounting block, an end of the telescopic rod away from the mounting block is fixedly connected to a slider, a spring is sleeved on the telescopic rod, two ends of the spring are respectively fixedly connected to the mounting block and the slider, one end of the slider is fixedly connected to a first anchor rod, one end of the first anchor rod passes through the inner wall of the cavity and extends outward, one end of the first anchor rod is fixedly connected to two symmetrically arranged bearing blocks, and the two bearing blocks are fixedly connected to a second anchor rod.

[0006] Preferably, the first anchor rod and the second anchor rod are in a spiral structure.

[0007] Preferably, a conical drill bit is fixedly connected to the top of each of the first anchor rod and the second anchor rod.

[0008] Preferably, the bearing block is fixedly connected to the fixing seat via a damping shock absorber.

[0009] Preferably, a plurality of water seepage holes are evenly arranged on the L-shaped support plate.

[0010] Preferably, the length of the second anchor rod is shorter than the length of the first anchor rod.

[0011] Due to the adoption of the above technical solution, the present invention has the following advantages:

[0012] 1. In the present invention, the spiral blades on the first anchor rod and the second anchor rod generate reaction forces to stretch or support the fixing seat, thereby preventing the fixing seat from moving outward or sinking, thereby improving the stability of the L-shaped support plate.

[0013] 2. In the present invention, by setting the damping shock absorber and the spring, when the surface of the soil foundation becomes loose and rolls down, the L-shaped support plate is squeezed, so that the spring and the damping shock absorber can play a certain elastic supporting and stretching role, increase the tensile strength of the L-shaped support plate, and improve the pressure bearing capacity of the L-shaped support plate, thereby improving the stability of the soil foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 for Figure 1 A in the figure is an enlarged structural diagram.

[0016] Description of the accompanying drawings: 1-L-shaped support plate, 2-fixed seat, 3-cavity, 4-mounting block, 5-telescopic rod, 6-sliding block, 7-spring, 8-first anchor rod, 9-bearing block, 10-second anchor rod, 11-conical drill bit, 12-damping shock absorber, 13-water seepage hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiments of the present invention: Please refer to Figures 1-2, a ground-connected wall soil reinforcement device close to a subway comprises an L-shaped support plate 1, a plurality of relatively arranged fixing seats 2 are fixedly connected to the L-shaped support plate 1, and a resilient supporting mechanism is arranged. A cavity 3 is arranged in the fixing seat 2, and a mounting block 4 is fixedly connected to the inner wall of the cavity 3 for fixing a telescopic rod 5, and a telescopic rod 5 is fixedly connected to the mounting block 4 for supporting a sliding block 6, and an end of the telescopic rod 5 away from the mounting block 4 is fixedly connected to the sliding block 6, and a spring 7 is sleeved on the telescopic rod 5, and the two ends of the spring 7 are respectively fixedly connected to the mounting block 4 and the sliding block 6, and are used to play a certain shock absorbing and buffering role for the sliding block 6 during the sliding process, and a first anchor rod 8 is fixedly connected to one end of the sliding block 6, and is used to fix the L-shaped support plate 1, and one end of the first anchor rod 8 passes through the inner wall of the cavity 3 and extends outward, and one end of the first anchor rod 8 is fixedly connected to two symmetrically arranged bearing blocks 9, and is used to play a certain elastic supporting role for the second anchor rod 10, and the two bearing blocks 9 are fixedly connected with the second anchor rod 10, and are used to enhance the fixing effect of the fixing seat 2. The first anchor rod 8 and the second anchor rod 10 are in a spiral structure, so that the spiral mechanism of the first anchor rod 8 and the second anchor rod 10 generates a reaction force to stretch or support the bearing block 9 and the fixed seat 2, preventing the bearing block 9 and the fixed seat 2 from rising or sinking, thereby improving the stability of the first anchor rod 8 and the second anchor rod 10. The tops of the first anchor rod 8 and the second anchor rod 10 are fixedly connected with a conical drill bit 11, which is convenient for inserting the first anchor rod 8 and the second anchor rod 10 into the soil layer. The bearing block 9 and the fixed seat 2 are fixedly connected by a damping shock absorber 12, which is used to provide a certain elastic support for the bearing block 9. A plurality of seepage holes 13 are evenly arranged on the L-shaped support plate 1, so that the accumulated water in the soil layer can be discharged, reducing the bearing capacity of the L-shaped support plate 1. The length of the second anchor rod 10 is less than that of the first anchor rod 8, which is used to enhance the fixing effect of the first anchor rod 8.

[0019] The working principle of the present invention is as follows: when in use, the first anchor rod 8 and the second anchor rod 10 are respectively screwed into the soil foundation, and the L-shaped support plate 1 is fixed to the outer surface of the soil foundation. When the surface of the soil foundation becomes loose, the spiral blades on the first anchor rod 8 and the second anchor rod 10 generate a reaction force to stretch or support the fixing seat 2, thereby preventing the fixing seat 2 from moving outward or settling, thereby improving the stability of the L-shaped support plate 1. At the same time, through the setting of the damping shock absorber 12 and the spring 7, when the surface of the soil foundation becomes loose and rolls down, the L-shaped support plate 1 is squeezed, so that the spring 7 and the damping shock absorber 12 can play a certain elastic support and stretching role, thereby increasing the tensile strength of the L-shaped support plate 1, and improving the pressure-bearing capacity of the L-shaped support plate 1, thereby improving the stability of the soil foundation.

Claims

1. A soil reinforcement device for a ground-connected wall adjacent to a subway, comprising an L-shaped support plate (1), characterized in that: The L-shaped support plate (1) is fixedly connected to a plurality of fixed seats (2) arranged opposite to each other, a cavity (3) is arranged in the fixed seat (2), a mounting block (4) is fixedly connected to the inner wall of the cavity (3), a telescopic rod (5) is fixedly connected to the mounting block (4), an end of the telescopic rod (5) away from the mounting block (4) is fixedly connected to a slider (6), a spring (7) is sleeved on the telescopic rod (5), two ends of the spring (7) are respectively fixedly connected to the mounting block (4) and the slider (6), one end of the slider (6) is fixedly connected to a first anchor rod (8), one end of the first anchor rod (8) passes through the inner wall of the cavity (3) and extends outwards, and one end of the first anchor rod (8) is fixedly connected to two symmetrically arranged bearing blocks (9), and the two bearing blocks (9) are fixedly connected to a second anchor rod (10).

2. The soil reinforcement device for the ground-connected wall adjacent to the subway according to claim 1 is characterized in that: The first anchor rod (8) and the second anchor rod (10) are in a spiral structure.

3. The soil reinforcement device for the ground-connected wall adjacent to the subway according to claim 1 is characterized in that: A conical drill bit (11) is fixedly connected to the top of each of the first anchor rod (8) and the second anchor rod (10).

4. The soil reinforcement device for the ground-connected wall adjacent to the subway according to claim 1 is characterized in that: The bearing block (9) is fixedly connected to the fixing seat (2) via a damping shock absorber (12).

5. The soil reinforcement device for the ground-connected wall adjacent to the subway according to claim 1 is characterized in that: The L-shaped support plate (1) is evenly provided with a plurality of water seepage holes (13).

6. The soil reinforcement device for the ground-connected wall adjacent to the subway according to claim 1, characterized in that: The length of the second anchor rod (10) is shorter than the length of the first anchor rod (8).

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