Roadbed deviation rectifying device

Abstract

This utility model belongs to the field of roadbed maintenance technology and discloses a roadbed correction device, comprising N grouting bladders connected in sequence and N grouting pipes corresponding one-to-one with each grouting bladder, where N≥2. Each grouting bladder includes a bladder body and a supporting pipe. The bladder body is a through structure with openings at both ends, sleeved outside the supporting pipe, and both ends of the bladder body along the axial direction of the supporting pipe are sealed to the pipe wall. The N supporting pipes are connected in sequence. Among the multiple grouting pipes, the first grouting pipe communicates with the grouting port of the first bladder, the second grouting pipe passes through the first supporting pipe and communicates with the grouting port of the second bladder, and the Nth grouting pipe simultaneously passes through the first, second, ..., and (N-1)th supporting pipes and communicates with the grouting port of the Nth bladder. This utility model achieves precise correction of the roadbed, avoids damage to the roadbed structure, generates no pollutants, and is highly adaptable.

Description

Technical Field

[0001] This utility model relates to the field of roadbed maintenance technology, and in particular to a roadbed correction device. Background Technology

[0002] In the field of high-speed railways, the stability and precise lifting of the railway subgrade play a crucial role in ensuring train operation safety and passenger comfort. Traditional subgrade correction methods generally use polyurethane foam materials for subgrade settlement repair, but this subgrade lifting method has the following drawbacks: 1) Poor long-term performance: Under long-term cyclic loads, temperature changes, and rainwater erosion, polyurethane foam materials are prone to strain relaxation and structural deterioration, leading to a decrease in support capacity; 2) Significant environmental impact: Polyurethane materials are polymeric substances, and filling them into tracks and subgrades may pose a risk of environmental pollution; 3) Low control precision in filling polyurethane foam materials, making precise control impossible. Utility Model Content

[0003] The purpose of this invention is to provide a roadbed correction device that can accurately correct the roadbed, provide stable support, and generate no pollutants.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] The roadbed correction device includes N grouting chambers and N grouting pipes corresponding one-to-one with the grouting chambers, where N≥2;

[0006] The grouting bladder includes a bladder body and a support tube. The bladder body is sleeved outside the support tube, and both ends of the bladder body along the axial direction of the support tube are sealed to the tube wall of the support tube. The bladder body is provided with a grouting port. N support tubes are connected in sequence. The first grouting tube communicates with the grouting port of the first bladder body. The second grouting tube passes through the first support tube and communicates with the grouting port of the second bladder body. The Nth grouting tube passes through the first, second, ... and N-1th support tubes and communicates with the grouting port of the Nth bladder body.

[0007] As an alternative, in any two adjacent support pipes, the rear end of the support pipe located in front is provided with a first through hole, and the grouting pipe passes through the support pipe located in front and extends out through the first through hole to communicate with the grouting port of the bladder located behind.

[0008] As an alternative, any two adjacent support pipes can be threaded together.

[0009] As an alternative, in the two threaded support tubes, one support tube has a nut block rotatably provided at its end, the nut block having a threaded hole, and the other support tube has an external thread at its end wall that matches the threaded hole.

[0010] As an alternative, the end of the support tube of the nut block is provided with an outer ring stop.

[0011] The nut block has an inner ring stop on the inner wall of the threaded hole. The support tube on which the nut block is mounted is rotatably inserted into the inner ring stop. The outer ring stop is used to abut against the inner ring stop to prevent the nut block from coming out of the support tube.

[0012] As an alternative, a sleeve is provided between any two adjacent support pipes, one end of the sleeve is connected to the support pipe located in front, and the other end is connected to the support pipe located behind, with the portion of the grouting pipe located outside the support pipe located inside the sleeve.

[0013] As an alternative, a second through hole is provided on the sleeve wall at a position opposite to the connection point of the two support tubes.

[0014] As an alternative, each of the bladders is provided with a support collar at both ends, the support collar being sealed to the wall of the support tube, the grouting port being provided on the support collar, and the two ends of the sleeve being respectively fitted onto the two support collars.

[0015] As an optional solution, the roadbed correction device also includes a grouting machine, with the inlet end of each grouting pipe connected to the grout outlet of the grouting machine.

[0016] As an alternative, the capsule is made of polyester fiber.

[0017] The beneficial effects of this utility model are:

[0018] The roadbed correction device provided by this utility model allows for the selective insertion of N grouting bladders arranged in a row into the roadbed laterally and / or vertically to one side of the roadbed, depending on the degree of settlement and / or tilt of the roadbed. Appropriate amounts of grout can be selectively injected into different bladders as needed. This enables vertical lifting and / or horizontal correction of the roadbed, achieving precise correction of the roadbed without damaging the roadbed structure or generating pollutants. Furthermore, the N grouting bladders do not interfere with each other, maximizing the precision of roadbed correction. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the roadbed correction device provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the nut block and the support tube in an embodiment of this utility model.

[0021] In the picture:

[0022] 1. Grouting bladder; 11. Bladder body; 111. Supporting collar; 1111. Grouting port; 12. Supporting pipe; 121. First through hole; 122. Outer ring stop; 13. Nut block; 131. Threaded hole; 132. Inner ring stop; 14. Sleeve; 141. Second through hole;

[0023] 2. Grouting pipe. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1-2As shown in the figure, this utility model embodiment provides a roadbed correction device, which can be applied to accurately correct the track slabs of railway roadbeds.

[0029] Specifically, the roadbed correction device includes N grouting bladders 1 connected in sequence and N grouting pipes 2 corresponding one-to-one with each grouting bladder 1, where N ≥ 2. Each grouting bladder 1 includes a bladder body 11 and a support pipe 12. The bladder body 11 is a through structure with openings at both ends. The bladder body 11 is fitted over the support pipe 12, and both ends of the bladder body 11 along the axial direction of the support pipe 12 are sealed to the pipe wall of the support pipe 12, so that a receiving cavity is formed between the outer surfaces of the bladder body 11 and the support pipe 12. The bladder body 11 is provided with a grouting port 1111, through which grout can be injected into the receiving cavity of the bladder body 11 to cause the bladder body 11 to expand.

[0030] N support pipes 12 are connected in sequence to connect N grouting bladders 1 in a row, so that the N grouting bladders 1 can be used in combination. Among the multiple grouting pipes 2, the first grouting pipe 2 is connected to the grouting port 1111 of the first bladder 11. The second grouting pipe 2 is inserted into the first support pipe 12 and connected to the grouting port 1111 of the second bladder 11. The Nth grouting pipe 2 is inserted into the first, second, ... and N-1th support pipes 12 and connected to the grouting port 1111 of the Nth bladder 11.

[0031] Depending on the degree of settlement and / or tilt of the roadbed, N grouting bladders 1 connected in a row are selected to be inserted laterally under the roadbed and / or vertically to one side of the roadbed. Then, according to the needs, appropriate amounts of grout can be selectively injected into different bladders 11. This can correct the vertical lifting and / or horizontal tilt of the roadbed, thus achieving precise correction of the roadbed, avoiding damage to the roadbed structure, generating no pollutants, and providing flexible adaptability. In addition, the N grouting bladders 1 do not affect each other, maximizing the fine correction of the roadbed.

[0032] Specifically, in any two adjacent grouting bladders 1, the rear end of the support tube 12 of the grouting bladder 1 located in front is provided with a first through hole 121. The grouting pipe 2 passes through the support tube 12 of the grouting bladder 1 located in front and extends out through the first through hole 121 to communicate with the grouting port 1111 of the bladder body 11 of the grouting bladder 1 located behind. For example, taking two grouting bladders 1 as an example, the grouting bladder 1 located in front is the first position, and the grouting bladder 1 located behind is the second position. The rear end of the support tube 12 of the grouting bladder 1 located in front is provided with a first through hole 121. The second grouting pipe 2 passes through the support tube 12 of the grouting bladder 1 located in front and extends out through the first through hole 121 to communicate with the grouting port 1111 of the bladder body 11 of the grouting bladder 1 located in second position. Through this structure, the grouting pipe 2 can be connected to the grouting port 1111 of the bladder body 11 located behind.

[0033] Optionally, any two adjacent support tubes 12 can be threaded together, which makes it convenient to connect the two support tubes 12.

[0034] Specifically, such as Figure 2 As shown, in the two threaded support pipes 12, a nut block 13 is rotatably mounted at the end of one support pipe 12, and the nut block 13 is provided with a threaded hole 131. The end of the wall of the other support pipe 12 is provided with an external thread that matches the threaded hole 131. When the two support pipes 12 are connected, the other support pipe 12 can be screwed onto the nut block 13 by rotating it, thus achieving the connection of the two support pipes 12. This structure is simple and easy to operate.

[0035] More specifically, the support tube 12 with nut block 13 has an outer ring stop 122 at its end wall, and the nut block 13 has an inner ring stop 132 on its inner wall of the threaded hole 131. The support tube 12 with nut block 13 is rotatably inserted into the inner ring stop 132, and the outer ring stop 122 and the inner ring stop 132 can abut against each other to prevent the nut block 13 from coming out of the support tube 12. This structure allows the nut block 13 to rotate, facilitating threaded connection with another support tube 12 with external threads, and the abutment between the inner ring stop 132 and the outer ring stop 122 allows the nut block 13 to rotate while also preventing it from coming out of the support tube 12.

[0036] In order to protect the portion of the grouting pipe 2 exposed outside the support pipe 12, and referring to... Figure 1 Taking two grouting bladders 1 as an example, a sleeve 14 is provided between the two support pipes 12. One end of the sleeve 14 is connected to the support pipe 12 located in front (i.e., the support pipe 12 of the first grouting bladder 1), and the other end is connected to the support pipe 12 located behind (i.e., the support pipe 12 of the second grouting bladder 1). The part of the second grouting pipe 2 that extends out through the first through hole 121 is provided in the sleeve 14.

[0037] Optionally, a second through hole 141 is provided on the sleeve 14 at a position corresponding to the nut block 13. The nut block 13 can be operated through the second through hole 141 to achieve a tight connection between the two support tubes 12.

[0038] To facilitate the connection of the sleeve 14, each bladder 11 is provided with a support ring 111 at both ends. The support ring 111 can be welded to the wall of the support tube 12. The support ring 111 is sealed to the wall of the support tube 12. The grouting port 1111 is provided on the support ring 111. The two ends of the sleeve 14 are respectively fitted onto the opposite support rings 111 on the two bladders 11.

[0039] Optionally, each bladder 11 has a grouting port 1111 at both its front and rear ends. When using the grouting port 1111 at the front end of the bladder 11, the grouting port 1111 at the rear end of the bladder 11 needs to be blocked. Taking two grouting bladders 1 as an example, since both the front and rear ends of the bladder 11 have grouting ports 1111, the second grouting pipe 2 can be connected to the grouting port 1111 at the rear end of the bladder 11 of the first grouting bladder 1 and the grouting port 1111 at the front end of the bladder 11 of the second grouting bladder 1. In other words, grouting is achieved in the two bladders 11 through the first grouting pipe 2.

[0040] In this embodiment, the capsule 11 is made of polyester fiber, which gives the capsule 11 high strength and elastic recovery ability, allowing the capsule 11 to expand after grouting to provide uniform thrust.

[0041] In this embodiment, the roadbed correction device also includes a grouting machine. The inlet end of each grouting pipe 2 is connected to the grout outlet of the grouting machine, and the grouting machine can be used to grout the bladder 11.

[0042] Furthermore, the roadbed correction device also includes a control module, a switching valve, and a sensor. Each grouting pipe 2 is equipped with a switching valve at its inlet end. The sensor is used to detect the real-time status of the roadbed. The control module controls the opening and closing or the degree of opening of the switching valve through the signal transmitted by the sensor, so as to automatically adjust the grouting amount of each bladder 11 and achieve fine control.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A roadbed correction device, characterized in that, It includes N grouting bladders (1) and N grouting pipes (2) corresponding one-to-one with the grouting bladders (1), where N≥2; The grouting bladder (1) includes a bladder body (11) and a support tube (12). The bladder body (11) is sleeved on the support tube (12), and both ends of the bladder body (11) along the axial direction of the support tube (12) are sealed to the tube wall of the support tube (12). The bladder body (11) is provided with a grouting port (1111). N support tubes (12) are connected in sequence. The first grouting tube (2) is connected to the first bladder body (11). The second grouting pipe (2) is inserted into the first support pipe (12) and is connected to the grouting port (1111) of the second bladder (11). The Nth grouting pipe (2) is inserted into the first, second, ... and N-1th support pipes (12) and is connected to the grouting port (1111) of the Nth bladder (11).

2. The roadbed correction device according to claim 1, characterized in that, In any two adjacent support pipes (12), the rear end of the support pipe (12) located in front is provided with a first through hole (121). The grouting pipe (2) passes through the support pipe (12) located in front and extends out through the first through hole (121) to communicate with the grouting port (1111) of the bladder (11) located behind.

3. The roadbed correction device according to claim 1, characterized in that, Any two adjacent support tubes (12) are threaded together.

4. The roadbed correction device according to claim 3, characterized in that, In the two threaded support tubes (12), one support tube (12) has a nut block (13) rotatably provided at its end, the nut block (13) has a threaded hole (131), and the other support tube (12) has an external thread at its end wall that matches the threaded hole (131).

5. The roadbed correction device according to claim 4, characterized in that, The end of the pipe wall of the support tube (12) for which the nut block (13) is provided is provided with an outer ring stop (122); The nut block (13) has an inner ring stop (132) on the inner wall of the threaded hole (131). The support tube (12) on which the nut block (13) is disposed is rotatably inserted into the inner ring stop (132). The outer ring stop (122) is used to abut against the inner ring stop (132) to restrict the nut block (13) from coming out of the support tube (12).

6. The roadbed correction device according to claim 1, characterized in that, A sleeve (14) is provided between any two adjacent support pipes (12). One end of the sleeve (14) is connected to the support pipe (12) located in front, and the other end is connected to the support pipe (12) located behind. The part of the grouting pipe (2) located outside the support pipe (12) is located inside the sleeve (14).

7. The roadbed correction device according to claim 6, characterized in that, A second through hole (141) is provided on the sleeve (14) at a position opposite to the connection of the two support tubes (12).

8. The roadbed correction device according to claim 6, characterized in that, Each of the bladder bodies (11) is provided with a support collar (111) at both ends. The support collar (111) is sealed to the wall of the support tube (12). The grouting port (1111) is provided on the support collar (111). The two ends of the sleeve (14) are respectively sleeved on the two support collars (111).

9. The roadbed correction device according to claim 1, characterized in that, The roadbed correction device also includes a grouting machine, and the inlet end of each grouting pipe (2) is connected to the grout outlet of the grouting machine.

10. The roadbed correction device according to any one of claims 1-9, characterized in that, The capsule (11) is made of polyester fiber.

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