Fabricated micro pile for roadbed slope reinforcement

Abstract

The utility model discloses a fabricated micro pile for roadbed slope reinforcement, and belongs to the technical field of micro piles. An assembly type micro pile for roadbed slope reinforcement comprises a micro pile body, a stabilizing frame, a connecting cover, a water pumping pipe and a water drainage pipe, and the stabilizing frame is fixedly connected to the micro pile body; the connecting cover is arranged on the micro pile body in a threaded connection mode. The water pumping pipe is connected and fixedly arranged in the micro pile body; the water seepage holes are formed in the micro pile body, so that water in a roadbed can permeate into the micro pile body, at the moment, the water pump can discharge separated water in time through the water pumping pipe and the water drainage pipe in cooperation, and the shear strength and the anti-sliding stability of a soil body are improved; the flatness and the service life of the pavement are ensured, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of micropiles, and more specifically, to a prefabricated micropile for subgrade slope reinforcement. Background Art

[0002] Prefabricated micropiles are an engineering technology commonly used for subgrade slope reinforcement, and they can effectively enhance the stability and anti-slip performance of slopes. These micropiles usually consist of the following main parts:

[0003] Steel bar pile body: This is the main part of the micropile, usually composed of a steel bar mesh or a steel bar cylinder. The steel bar pile bodies are connected into a whole through connectors or lap joints and are fixed and installed in the slope.

[0004] Connectors: These parts are usually made of corrosion-resistant metals and are used to connect different parts of the micropile to ensure the stability and load-bearing capacity of the overall structure. The connectors can also help the micropiles maintain the correct position and spacing during installation.

[0005] Reinforced bars: In the design of prefabricated micropiles, spaces for reinforced bars are usually reserved for subsequent filling with concrete or other consolidation materials. The addition of reinforced bars helps to further enhance the tensile and compressive capacities of the micropiles.

[0006] Backfill materials: After the installation of the micropiles, backfill materials, such as concrete or other suitable fill soils, are usually filled in the gaps between the piles. These materials can provide further support and function to fix the micropiles.

[0007] Anti-corrosion layer: In order to extend the service life of the micropiles, especially in humid or saline-alkali areas, an anti-corrosion layer is often coated on the surface or inside of the micropiles to prevent the corrosion of steel bars and the structure.

[0008] The advantages of prefabricated micropiles include convenient construction, relatively low cost, and less damage to the original terrain, etc. Therefore, they have been widely used in subgrade slope reinforcement and other civil engineering projects.

[0009] The prior art document with the publication number CN216515546U provides a prefabricated micropile for subgrade slope reinforcement. This device combines micropiles, grouting piles, and assembled piles to design a prefabricated grouting micropile with fast construction speed, high efficiency, flexible and simple construction, polymer grouting for pile formation, and the length can be independently designed. The piles are arranged in a plum blossom-shaped pile group distribution pattern. The micropiles have many advantages such as flexible construction and high construction efficiency in treating landslides. For the treatment of highway subgrade slopes, especially for some sections restricted by the surrounding environment, the micropiles have good treatment effects and adaptability in treating slope collapses.

[0010] Although the existing technical solutions mentioned above can achieve relevant beneficial effects through the structures of the existing technologies, there are still the following defects. When the device is in use, during the use of the roadbed, moisture will penetrate into the roadbed or the support layer. Since the device is not convenient for timely drainage of the moisture in the roadbed, it may cause uneven settlement or softness of the roadbed or the foundation part, thereby affecting the flatness and service life of the road surface.

[0011] In view of this, we propose an assembled micro-pile for reinforcing the roadbed slope. Content of the utility model

[0012] 1. Technical problems to be solved

[0013] The purpose of this application is to provide an assembled micro-pile for reinforcing the roadbed slope to solve the problem that it is not convenient to timely drain the moisture in the roadbed, which may cause uneven settlement or softness of the roadbed or the foundation part as mentioned in the above background technology.

[0014] 2. Technical solutions

[0015] An assembled micro-pile for reinforcing the roadbed slope includes a micro-pile body, a stabilizing frame, a connecting cover, a water extraction pipe, and a drain pipe. The stabilizing frame is fixedly connected to the micro-pile body;

[0016] The connecting cover is threadedly connected to the micro-pile body;

[0017] The water extraction pipe is fixedly connected and arranged inside the micro-pile body;

[0018] The drain pipe is arranged at one end of the connecting cover.

[0019] Preferably, a plurality of water seepage holes are formed on the micro-pile body, and the water seepage holes are arranged in a conical structure.

[0020] Preferably, a plurality of insertion rods are fixedly connected to the stabilizing frame, and a plurality of anti-pulling grooves are formed on the insertion rods.

[0021] Preferably, a connecting pipe is slidably fitted to the inner wall of one end of the connecting cover. The upper end of the connecting pipe is arranged in a bent structure. The other end of the connecting pipe is rotatably connected with a threaded sleeve, and the threaded sleeve is threadedly connected to the drain pipe. A connecting insertion sleeve is fixedly connected inside the connecting cover.

[0022] Preferably, a water pump is fixedly connected to the bottom end of the water extraction pipe, and a conical head is fixedly connected to the top end of the water extraction pipe. The conical head is adapted to the inner wall of the connecting insertion sleeve.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the advantages of the present application are as follows: By opening water seepage holes on the micro-pile body, the moisture in the subgrade can penetrate into the micro-pile body. At this time, the water pump can cooperate with the drain pipe through the water extraction pipe to drain the separated water in time, improving the shear strength and anti-sliding stability of the soil mass, ensuring the flatness and service life of the road surface, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 is a schematic sectional view of the overall structure of the present application;

[0027] Figure 3 is a schematic expanded sectional view of the overall structure of the present application;

[0028] Description of the reference numerals in the drawings: 1, micro-pile body; 2, stabilizing frame; 3, connecting cover; 4, water extraction pipe; 5, drain pipe; 101, water seepage hole; 201, inserting rod; 202, anti-pulling groove; 301, connecting pipe; 302, connecting socket; 303, threaded sleeve; 401, water pump; 402, conical head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Please refer to FIGS. 1-3. The present application provides a technical solution:

[0030] An assembled micro-pile for reinforcing a subgrade slope includes a micro-pile body 1, a stabilizing frame 2, a connecting cover 3, a water extraction pipe 4, and a drain pipe 5. A stabilizing frame 2 is fixedly connected to the micro-pile body 1;

[0031] The connecting cover 3 is threadedly connected to the micro-pile body 1;

[0032] The water extraction pipe 4 is fixedly connected and arranged inside the micro-pile body 1;

[0033] The drain pipe 5 is arranged at one end of the connecting cover 3.

[0034] Specifically, a plurality of water seepage holes 101 are opened on the micro-pile body 1, and the water seepage holes 101 are arranged in a conical structure.

[0035] In this embodiment, a water level sensor is installed on the inner wall of the micro-pile body 1 to monitor the infiltrated water and realize automatic drainage.

[0036] Furthermore, a plurality of inserting rods 201 are fixedly connected to the stabilizing frame 2, and a plurality of anti-pulling grooves 202 are opened on the inserting rods 201.

[0037] In this embodiment, the inserting rod 201 provided with the anti-pulling groove 202 improves the grip of the stabilizing frame 2 and the stability of the micro-pile body 1.

[0038] Furthermore, a connecting pipe 301 is slidably fitted to the inner wall at one end of the connecting cover 3. The upper end of the connecting pipe 301 is bent. The other end of the connecting pipe 301 is rotatably connected with a threaded sleeve 303. The threaded sleeve 303 is threadedly connected with the drain pipe 5. A connecting socket 302 is fixedly connected inside the connecting cover 3.

[0039] In this embodiment, the upper end of the connecting pipe 301 is bent to prevent the water in the drain pipe 5 from flowing back.

[0040] In addition, a water pump 401 is fixedly connected to the bottom end of the water suction pipe 4, and a conical head 402 is fixedly connected to the top end of the water suction pipe 4. The conical head 402 is adapted to the inner wall of the connecting socket 302.

[0041] The implementation principle of an assembled micro-pile for subgrade slope reinforcement in an embodiment of the present application is as follows: when it is necessary to reinforce the subgrade slope, first insert the micro-pile body 1 into the subgrade slope through a pile driver. At this time, the insertion rod 201 on the stabilizing frame 2 will be inserted into the ground for fixation. Then, threadedly connect the connecting cover 3 to the micro-pile body 1. Then, the connecting socket 302 will be movably inserted into the conical head 402. Then, threadedly connect the threaded sleeve 303 on the connecting cover 3 to the drain pipe 5. During the use of the micro-pile body 1, when there is a large amount of water in the subgrade, it will flow into the micro-pile body 1 through the water seepage holes 101. When the water volume reaches the monitored amount of the water level sensor, the water pump 401 will inject the water in the micro-pile body 1 into the drain pipe 5 through the connecting cover 3 for timely drainage.

Claims

1. An assembled micro pile for roadbed slope reinforcement, comprising a micro pile body (1), a stabilizing frame (2), a connecting cover (3), a water pumping pipe (4), and a drainage pipe (5), characterized in that: A stabilizing frame (2) is connected and fixed to the micropile body (1); The connection cover (3) is threadedly connected to the micropile body (1); The water pumping pipe (4) is connected and fixedly arranged in the micropile body (1); The drainage pipe (5) is arranged at one end of the connection cover (3).

2. The assembled micro pile for roadbed slope reinforcement according to claim 1 is characterized in that: The micropile body (1) is provided with a plurality of water seepage holes (101), and the water seepage holes (101) are arranged in a conical structure.

3. The assembled micro pile for roadbed slope reinforcement according to claim 1 is characterized in that: A plurality of insertion rods (201) are connected and fixedly arranged on the stabilizing frame (2), and a plurality of anti-pulling grooves (202) are provided on the insertion rods (201).

4. The assembled micro pile for roadbed slope reinforcement according to claim 1 is characterized in that: A connecting pipe (301) is provided on the inner wall of one end of the connecting cover (3) in a sliding manner. The upper end of the connecting pipe (301) is provided in a bent structure. The other end of the connecting pipe (301) is provided with a threaded sleeve (303) for rotational connection. The threaded sleeve (303) is threadedly connected to the drain pipe (5). A connecting sleeve (302) is fixedly connected inside the connecting cover (3).

5. The assembled micro pile for roadbed slope reinforcement according to claim 4 is characterized in that: A water pump (401) is fixedly connected to the bottom end of the water pumping pipe (4), and a conical head (402) is fixedly connected to the top end of the water pumping pipe (4), wherein the conical head (402) is matched with the inner wall of the connecting sleeve (302).

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