Pipe penetrating system in long-distance jacking pipe
By setting up slip resistance reduction modules, traction modules and support modules in the top pipe, the problems of limited construction space and high labor intensity in the long-distance inner pipe penetration construction are solved, the construction efficiency and stability are improved, and the friction and Wear, achieving convenient traction and support of steel pipes.
Patent Information
- Application Number
- CN202420467426.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-11
AI Technical Summary
When conducting long-distance inner pipe penetration construction, the construction space is limited, and the traditional methods have high labor intensity, complex processes, and large resource consumption, resulting in slow construction progress and long construction period.
The sliding resistance reduction module, traction module and support module are adopted. The sliding resistance reduction module reduces the friction between the steel pipe and the inner wall of the top pipe through glass beads or pulley resistance reduction mechanism. The traction module uses car cranes and fixed pulleys to achieve traction, and the support module passes through Array support frame provides support.
It effectively reduces the friction force of the steel pipe moving in the top pipe, improves construction efficiency, simplifies operation, reduces wear on the outer wall of the steel pipe, solves the problem of inconvenient steel pipe traction in small spaces, and improves the stability and safety of the system.
Smart Images
Figure CN222255272U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of steel pipe penetration construction in pipe jacking engineering, and in particular to a long-distance pipe jacking internal pipe penetration system. Background Art
[0002] When a large-diameter pipeline crosses a highway, railway, bridge, or culvert, the jacking technique is usually used to first push in a larger-diameter casing, then pass the pipeline through the jacking casing, and then complete the pipe-threading operation.
[0003] At present, when pipe penetration is carried out, the construction space is usually limited. Especially for the ultra-long distance pipe penetration construction, it is necessary to ensure that the traction force of the pipe penetration is sufficient. The conventional method of crossing the steel pipe in the casing is to lay a continuous channel steel in the casing and lay high-strength concrete on the bottom to form a concrete channel steel track, and use an arc-shaped trolley to lift and a winch to pull the pipe through.
[0004] However, the above-mentioned traditional crossing method has a high overall labor intensity, a relatively complicated overall process, and a large resource consumption, which slows down the overall construction progress and leads to a longer overall construction period. Utility Model Content
[0005] In order to effectively improve the construction efficiency of pipe penetration inside pipe jacking, the present application provides a long-distance pipe penetration system inside pipe jacking.
[0006] The present application provides a long-distance pipe-in-pipe system, which adopts the following technical solutions:
[0007] A long-distance pipe-in-pipe system includes a pipe-in-pipe arranged underground in a road and a steel pipe located in the pipe-in-pipe, and also includes:
[0008] A sliding resistance reduction module, which is arranged on the inner wall of the top pipe and is used to reduce the friction resistance between the steel pipe and the inner wall of the top pipe;
[0009] A traction module, the traction module is used to pull the steel pipe to move in the jacking pipe;
[0010] A support module is provided between the steel pipe located outside the top pipe and the pit bottom, and is used to support the steel pipe during splicing and movement.
[0011] By adopting the above technical solution, a sliding resistance reduction module is added between the steel pipe and the inner wall of the top pipe, which effectively reduces the friction of the steel pipe during its movement in the top pipe, thereby effectively increasing the smoothness of the steel pipe passing through the pipe, and effectively improving the construction efficiency of the pipe passing through the top pipe.
[0012] Preferably, the sliding resistance reduction module includes glass beads laid in the top pipe, the glass beads cover the entire inner wall of the bottom of the top pipe, and the steel pipe is arranged on the glass beads.
[0013] By adopting the above technical solution, glass beads can further reduce the friction between the steel pipe and the jacking pipe, and the construction operation is more convenient.
[0014] Preferably, the sliding drag reduction module comprises a plurality of pulley drag reduction mechanisms arranged on the inner wall of the top tube, and the pulley drag reduction mechanisms are detachably fixedly connected to the inner wall of the top tube.
[0015] By adopting the above technical solution and using a pulley resistance reduction mechanism fixedly arranged in the top pipe, the uncertainty of the glass beads is avoided and the overall stability of the system is increased.
[0016] Preferably, each of the pulley resistance reduction mechanisms comprises a mounting frame, a roller is movably provided on the mounting frame, the steel pipe is located on the roller, and the mounting frame is fixedly connected to the inner wall of the top pipe by bolts.
[0017] By adopting the above technical solution, during the movement of the steel pipe, the outer wall of the steel pipe only contacts the roller, which effectively reduces the wear on the outer wall of the steel pipe and further increases the overall safety of the system.
[0018] Preferably, the bottom of the mounting frame is an arc-shaped structure.
[0019] By adopting the above technical solution, it is more convenient to fix the mounting frame on the inner wall of the top pipe.
[0020] Preferably, an arc-shaped groove is formed on the surface of the roller along the circumferential direction.
[0021] By adopting the above technical solution, the contact area between the roller and the outer wall of the steel pipe is effectively increased, thereby effectively reducing the pressure per unit area, thereby reducing the pressure per unit area of the outer wall of the pipeline, and effectively reducing the wear on the outer wall of the steel pipe.
[0022] Preferably, a thin rubber pad is provided on the roller.
[0023] By adopting the above technical solution, the direct friction between the roller and the outer wall of the steel pipe is effectively reduced, and at the same time, it can play a role of buffering and lubrication between the roller and the outer wall of the steel pipe, thereby achieving the purpose of reducing friction and preventing damage to the anti-corrosion and thermal insulation layer.
[0024] Preferably, the traction module includes a truck crane and a fixed pulley located above one side of the top pipe, a steel wire rope is wound around the fixed pulley, one end of the steel wire rope is connected to the hook of the truck crane, and the other end of the steel wire rope is connected to the lifting nose at the tail of the steel pipe.
[0025] By adopting the above technical solution, the automobile crane cooperates with the fixed pulley to pull the steel pipe, thereby solving the problem that it is inconvenient to pull the steel pipe in a small space.
[0026] Preferably, the support module comprises a plurality of support frames arranged in an array, and the support frames are arranged below the steel pipe.
[0027] By adopting the above technical solution, it is convenient to support the steel pipes when welding them, and to support them during the movement of the steel pipes, which effectively increases the overall stability of the system.
[0028] In summary, the present application includes at least one of the following beneficial technical effects:
[0029] 1. By adding a sliding resistance reduction module between the steel pipe and the inner wall of the top pipe, the friction of the steel pipe during its movement in the top pipe is effectively reduced, thereby effectively increasing the smoothness of the steel pipe passing through the pipe and effectively improving the construction efficiency of the pipe passing through the top pipe;
[0030] 2. Glass beads can further reduce the friction between the steel pipe and the jacking pipe, and the construction operation is more convenient;
[0031] 3. With the help of the pulley resistance reduction mechanism, during the movement of the steel pipe, the outer wall of the steel pipe only contacts the roller, which effectively reduces the wear on the outer wall of the steel pipe and further increases the overall safety of the system;
[0032] 4. The comprehensive use of automobile cranes and fixed pulleys to pull the steel pipes solves the problem of inconvenience in pulling steel pipes in small spaces. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of the pipe threading system in the top pipe mainly embodied in this embodiment;
[0034] Figure 2 This is an axial schematic diagram mainly showing the overall structure of the pulley resistance reduction mechanism of this embodiment.
[0035] Figure numerals: 1. construction road; 2. tunnel; 3. ground; 4. jacking pipe; 5. steel pipe; 6. sliding resistance reduction module; 61. glass beads; 62. pulley resistance reduction mechanism; 621. mounting frame; 622. roller; 623. thin rubber pad; 7. traction module; 71. automobile crane; 72. fixed pulley; 73. wire rope; 74. lifting nose; 8. support module; 81. support frame. DETAILED DESCRIPTION
[0036] The present application is further described in detail below in conjunction with the accompanying drawings.
[0037] In the related art, when a large-diameter pipeline is to be constructed across a highway, it is preferred to pre-dig tunnels on both sides of the highway, and install the jacking pipes under the construction road using the jacking technology, and then pass the steel pipes to be installed through the jacking pipes to complete the construction.
[0038] The embodiment of the present application discloses a long-distance pipe-in-pipe threading system.
[0039] Embodiment 1:
[0040] Reference Figure 1 The long-distance pipe-threading system includes a sliding resistance reduction module 6, which is arranged on the inner wall of the pipe 4, and is used to reduce the friction resistance between the steel pipe 5 and the inner wall of the pipe 4; a traction module 7, and the traction module 7 is used to pull the steel pipe 5 to move in the pipe 4; a support module 8, and the support module 8 is arranged between the steel pipe 5 located outside the pipe 4 and the bottom of the pit, and the support module 8 is used to support the steel pipe 5 during splicing and movement.
[0041] Reference Figure 1 The sliding resistance reduction module 6 includes glass beads 61 laid in the top pipe 4, the glass beads 61 cover the inner wall of the bottom of the top pipe 4, and the steel pipe 5 is arranged on the glass beads 61. The glass beads 61 can further reduce the friction between the steel pipe 5 and the top pipe 4, and the construction operation is more convenient.
[0042] Reference Figure 1 The traction module 7 includes a car crane 71 and a fixed pulley 72 located above one side of the top pipe 4. A steel wire rope 73 is wound around the fixed pulley 72. One end of the steel wire rope 73 is connected to the hook of the car crane 71, and the other end of the steel wire rope 73 is connected to the hanging nose 74 at the tail of the steel pipe 5.
[0043] Specifically, one end of the steel wire rope 73 is preferentially connected to the tail nose 74 of the welded steel pipe 5, and the other end of the steel wire rope 73 is passed through the fixed pulley 72 and connected to the hook of the automobile crane 71. One end of the steel wire rope 73 is pulled upward by the hook of the automobile crane 71, and the direction of the force is changed by the fixed pulley 72, so as to achieve horizontal traction of the steel pipe 5, and then the automobile crane 71 cooperates with the fixed pulley 72 to pull the steel pipe 5, and at the same time, it can solve the problem of insufficient space in the tunnel 2 and inconvenience in pulling the steel pipe 5, and the whole traction process is more convenient.
[0044] Reference Figure 1 The support module 8 includes a plurality of support frames 81 arranged in an array, and the support frames 81 are arranged below the steel pipe 5 .
[0045] Specifically, the support frame 81 is mainly supported between the bottom of the tunnel 2 and the bottom of the steel pipe 5. It is mainly used to support the steel pipe 5 when welding between the steel pipes 5, and to support the steel pipe 5 during its movement, which effectively increases the overall stability of the system and increases the convenience during welding.
[0046] It should also be noted that the height of the support frame 81 can be adaptively adjusted, thereby making it easier to connect the steel pipes 5 to each other, thereby making the welding between the steel pipes 5 more accurate and stable.
[0047] In this embodiment, for the convenience of construction, a ladder is provided on the side wall of the preset tunnel 2 away from the construction road 1 to facilitate construction workers to travel back and forth between the ground 3 and the tunnel 2 .
[0048] The implementation principle of a long-distance pipe-threading system in an embodiment of the present application is as follows: one end of a steel wire rope 73 is pulled upward by a hook of a car crane 71, and the direction of the force is changed by a fixed pulley 72, thereby achieving horizontal traction of the steel pipe 5, thereby achieving movement of the steel pipe 5 in the jacking pipe 4, and effectively improving the overall pipe-threading efficiency under the action of the glass beads 61.
[0049] Embodiment 2:
[0050] Reference Figure 1 and Figure 2 The difference between this embodiment and the first embodiment is that in this embodiment, the sliding resistance reduction module 6 no longer uses glass beads 61, but is provided with a plurality of pulley resistance reduction mechanisms 62 on the inner wall of the top pipe 4, and the pulley resistance reduction mechanisms 62 are detachably fixedly connected to the inner wall of the top pipe 4. The use of the pulley resistance reduction mechanism 62 fixedly provided in the top pipe 4 avoids the uncertainty of the glass beads 61 and increases the overall stability of the system.
[0051] Reference Figure 2 The pulley resistance reduction mechanism 62 includes a mounting frame 621, on which a roller 622 is movably arranged, and the steel pipe 5 is located on the roller 622. The mounting frame 621 is fixedly connected to the inner wall of the top pipe 4 by bolts. During the movement of the steel pipe 5, the outer wall of the steel pipe 5 only contacts the roller 622, which effectively reduces the wear on the outer wall of the steel pipe 5 and further increases the overall safety of the system.
[0052] It should be noted that the bottom of the mounting frame 621 can be of an arc-shaped structure, so that the mounting frame 621 can be fixedly mounted on the inner wall of the top pipe 4. At the same time, the surface of the roller 622 can be provided with an arc-shaped groove along the circumferential direction, which effectively increases the contact area between the roller 622 and the outer wall of the steel pipe 5, thereby effectively reducing the pressure per unit area, thereby reducing the pressure per unit area on the outer wall of the pipeline, and thereby effectively reducing the wear on the outer wall of the steel pipe 5.
[0053] It should also be noted that a thin rubber pad 623 can be mounted on the roller 622. The provision of the thin rubber pad 623 effectively reduces the direct friction of the roller 622 on the outer wall of the steel pipe 5, and at the same time can play a role in buffering and lubricating between the roller 622 and the outer wall of the steel pipe 5, thereby achieving the purpose of reducing friction and preventing damage to the anti-corrosion and thermal insulation layer.
[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A long-distance pipe-in-pipe system, comprising a pipe-in-pipe (4) arranged underground in a road and a steel pipe (5) located inside the pipe-in-pipe (4), characterized in that: Also includes: A sliding resistance reduction module (6), the sliding resistance reduction module (6) being arranged on the inner wall of the top pipe (4), the sliding resistance reduction module (6) being used to reduce the friction resistance between the steel pipe (5) and the inner wall of the top pipe (4); A traction module (7), the traction module (7) being used to pull the steel pipe (5) to move inside the jacking pipe (4); A support module (8), wherein the support module (8) is arranged between the steel pipe (5) located outside the top pipe (4) and the bottom of the pit, and the support module (8) is used to support the steel pipe (5) during splicing and movement.
2. A long distance pipe-in-pipe system according to claim 1, characterized in that: The sliding resistance reduction module (6) comprises glass beads (61) laid inside the top pipe (4), the glass beads (61) covering the entire inner wall of the bottom of the top pipe (4), and the steel pipe (5) is arranged on the glass beads (61).
3. A long distance pipe-in-pipe system according to claim 1, characterized in that: The sliding drag reduction module (6) comprises a plurality of pulley drag reduction mechanisms (62) arranged on the inner wall of the top pipe (4), and the pulley drag reduction mechanisms (62) are detachably fixedly connected to the inner wall of the top pipe (4).
4. A long distance pipe-in-pipe system according to claim 3, characterized in that: Each of the pulley resistance reduction mechanisms (62) comprises a mounting frame (621), a roller (622) being movably arranged on the mounting frame (621), the steel pipe (5) being located on the roller (622), and the mounting frame (621) being fixedly connected to the inner wall of the top pipe (4) by bolts.
5. A long distance pipe-in-pipe system according to claim 4, characterized in that: The bottom of the mounting frame (621) is an arc-shaped structure.
6. A long distance pipe-in-pipe system according to claim 4, characterized in that: The surface of the roller (622) is provided with an arc-shaped groove along the circumferential direction.
7. A long distance pipe-in-pipe system according to claim 4, characterized in that: A thin rubber pad (623) is sleeved on the roller (622).
8. A long distance pipe-in-pipe system according to any one of claims 2 or 3, characterized in that: The traction module (7) comprises a truck crane (71) and a fixed pulley (72) located above one side of the top pipe (4), a steel wire rope (73) being wound around the fixed pulley (72), one end of the steel wire rope (73) being connected to a hook of the truck crane (71), and the other end of the steel wire rope (73) being connected to a lifting nose (74) at the tail of the steel pipe (5).
9. A long distance pipe-in-pipe system according to any one of claims 2 or 3, characterized in that: The support module (8) comprises a plurality of support frames (81) arranged in an array, and the support frames (81) are arranged below the steel pipe (5).