Counter-force structure for electric power pipe gallery double-bin circular pipe jacking

Abstract

The utility model relates to the technical field of pipe jacking construction, in particular to a counter-force structure for electric power pipe gallery double-bin circular pipe jacking, which comprises a tunneling device, a middle ring is rotatably mounted on one side of the tunneling device, one end of the middle ring is in butt joint with a pipeline body, and an iron ring pushing piece is arranged at one end of the pipeline body. A front-end filling structure is fixed to one side of the iron ring pushing piece, a hydraulic propelling set is installed on one side of the front-end filling structure, a counter-force assembly is arranged on one side of the hydraulic propelling set, a conveying track plate is arranged at the bottom of the pipeline body, supporting legs are fixed to the bottom of the conveying track plate, and a clamping part is arranged at one end of the iron ring pushing piece. According to the counterforce structure, a good stable supporting function can be provided at the rear portion, stress on the pipeline body can be more stable and uniform through the front end filling structure and the iron pushing ring piece, and the pipeline body can be more stably and evenly clamped through the clamping portion. And in addition, the counter-force assembly can be conveniently disassembled, assembled and used, and the installation difficulty of personnel is reduced.

Description

Technical Field

[0001] This utility model relates to a reaction structure, specifically a reaction structure for a double-compartment circular jacking pipe in a power utility tunnel, belonging to the field of pipe jacking construction technology. Background Technology

[0002] As cities develop, people's demand for electricity is increasing. Traditional power transmission methods generally involve overhead cables, while some areas require underground centralized power transmission due to specific factors, such as using power corridors. Firstly, underground cables can directly avoid hanging cables at high altitudes, reducing visual obstruction and improving the overall aesthetics of the city.

[0003] Furthermore, the power utility tunnel is constructed using pipe jacking technology, reducing land excavation. During construction, a robust reaction structure effectively maintains construction quality. For example, in CN221072717U, a reaction structure for a double-compartment rectangular pipe jacking tunnel for power utility tunnels is described. This structure includes: a pipe jacking working shaft; a side wall on the outside of the working shaft; a foundation pit on the outside of the side wall; a concrete abutment block between the foundation pit and the lower part of the side wall; and a diagonal bracing abutment between the foundation pit and the upper part of the side wall. Compared to existing technologies, this invention eliminates the need for backfilling and compaction of the excavated soil behind the pipe jacking working shaft, and avoids the construction and demolition of bored piles. The diagonal bracing abutment can be recycled after pipe jacking is completed, shortening the construction period, reducing construction costs, and minimizing resource waste and environmental pollution. This design demonstrates strong practicality.

[0004] However, the aforementioned document uses diagonal bracing as a rear support, and after the pipe is jacked up, the diagonal bracing and the diagonal bracing are removed and reused. However, the force at the rear is concentrated on the ground below, so the reaction effect is limited.

[0005] In view of this, this utility model is proposed. Summary of the Invention

[0006] The purpose of this utility model is to provide a reaction structure for a double-compartment circular jacking pipe in a power utility tunnel to solve the above problems. It can provide better stable support at the rear, and the front filling structure and push iron ring can make the pipe body more stable and uniform in terms of force. Furthermore, the reaction component can be easily disassembled and assembled, reducing the installation difficulty for personnel.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a reaction structure for a double-compartment circular jacking pipe in a power utility tunnel, characterized in that: it includes a tunneling device, an intermediate ring is rotatably installed on the rear side of the tunneling device, the rear end of the intermediate ring is connected to a pipe body, the rear end of the pipe body is provided with a push iron ring, the rear end of the push iron ring is fixed with a front filling structure, the rear end of the front filling structure is installed with a hydraulic propulsion group, the rear end of the hydraulic propulsion group is provided with a reaction component, the hydraulic propulsion group includes a fixed hydraulic propulsion rod and a dynamic hydraulic propulsion rod, the reaction component includes a force-bearing plate, the force-bearing plate is fixed with a filling block fixed to the rear end of the fixed hydraulic propulsion rod, the rear end of the dynamic hydraulic propulsion rod is fixed with a movable block, the rear end face of the movable block is fixed with several stabilizing plates, the force-bearing plate is provided with a slot through which the stabilizing plates of the movable block pass, the stabilizing plates extend through the slot to the rear side of the force-bearing plate to embed into the side wall of the pit.

[0008] Furthermore, the bottom of the pipe body is provided with a transport track plate, and the bottom of the transport track plate is fixed with support feet.

[0009] Furthermore, the front end of the pusher ring is provided with a snap-fit ​​part that mates with the inner wall of the pipe body, and the rear end face of the pusher ring is provided as a force-bearing end face.

[0010] Furthermore, the front-end filling structure includes a front-end connecting ring, which is fixed to the rear end face of the pusher ring by a front-end bolt. A support plate is fixed on the front-end connecting ring, and a rear-end connecting ring is fixed to one end of the support plate.

[0011] Furthermore, an inner convex plate is fixed on the rear connecting ring corresponding to the constant hydraulic push rod and the dynamic hydraulic push rod. The front end of the constant hydraulic push rod is fixed to the inner convex plate, and a docking plate is fixed to the front end of the dynamic hydraulic push rod. The docking plate is fixed to the rear connecting ring and the inner convex plate by docking bolts.

[0012] Furthermore, the load-bearing plate is arc-shaped.

[0013] Furthermore, there are three stabilizing plates arranged vertically.

[0014] Furthermore, rollers that rotatably mount on the transport track plate are in contact with the bottom of the pipe body.

[0015] The technical effects and advantages of this utility model are as follows: The reaction structure provided by this application can provide better stable support at the rear, and the front filling structure and push iron ring can make the pipe body more stable and uniform in force. In addition, the reaction component can be easily disassembled and assembled, reducing the installation difficulty for personnel. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the pusher ring structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the front-end filling structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the reaction force component structure of this utility model.

[0020] Figure 5 This is a cross-sectional view of the movable block and stabilizing plate of this utility model.

[0021] Figure 6 This is a cross-sectional view of the load-bearing plate of this utility model.

[0022] In the diagram: 1. Tunneling device; 101. Intermediate ring; 2. Pipeline body; 3. Pushing ring component; 301. Snap-fit ​​part; 302. Force-bearing end face; 4. Front-end filling structure; 401. Front-end connecting ring; 402. Support plate; 403. Rear-end connecting ring; 404. Inner convex plate; 5. Hydraulic propulsion group; 501. Fixed hydraulic propulsion rod; 502. Dynamic hydraulic propulsion rod; 503. Connecting plate; 6. Reaction component; 601. Force-bearing plate; 602. Filling block; 603. Movable block; 604. Stabilizing plate; 7. Transport track plate; 701. Support foot. Detailed Implementation

[0023] 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.

[0024] In this embodiment, the location of the tunneling device 1 is considered the front, and the location of the reaction force component 6 is considered the rear, so as to facilitate those skilled in the art to understand the technical solution described in this embodiment.

[0025] Please see Figures 1-6As shown, a reaction structure for a double-compartment circular jacking pipe in a power utility tunnel includes a tunneling device 1. The tunneling device 1 is used to excavate the soil and, in conjunction with a related discharge device, removes the soil while excavating. An intermediate ring 101 is rotatably installed on the rear side of the tunneling device 1. The intermediate ring 101 follows the tunneling device 1 and is used to smooth the inner wall of the excavated pipe opening. The rear end of the intermediate ring 101 is connected to the pipe body 2. The rear end of the pipe body 2 is provided with a pusher ring 3. The rear end of the pusher ring 3 is fixed with a front filling structure 4. A hydraulic propulsion group 5 is installed at the rear end of the front filling structure 4. The rear end of the hydraulic propulsion group 5 is provided with a reaction component 6. The reaction component 6 is located in the foundation pit. The hydraulic propulsion group 5 pushes the pipe body 2 section by section into the pipe opening excavated by the tunneling device 1. The bottom of the pipe body 2 is provided with a transport track plate 7. Rollers can also be installed on the transport track plate 7 to further reduce friction. The bottom of the transport track plate 7 is fixed with a support foot 701, which facilitates the positioning of the pipe body 2.

[0026] The front end of the pusher ring 3 is provided with a snap-fit ​​part 301, which extends to the inner wall of the pipe body 2. The rear end face of the pusher ring 3 is provided as a force-bearing end face 302. This can avoid the force from being concentrated in a local area, thereby pushing the pipe body 2 more safely and smoothly.

[0027] The front filling structure 4 includes a front connecting ring 401 that connects to the force-bearing end face 302. The front connecting ring 401 is fixed to the force-bearing end face 302 by a front bolt. A support plate 402 is fixed on the front connecting ring 401. A rear connecting ring 403 is fixed to one end of the support plate 402, which can extend the propulsion range of the hydraulic propulsion group 5.

[0028] The hydraulic propulsion assembly 5 includes a fixed hydraulic propulsion rod 501 and a dynamic hydraulic propulsion rod 502. An inner convex plate 404 is fixed on the inner wall of the rear connecting ring 403 corresponding to the fixed hydraulic propulsion rod 501 and the dynamic hydraulic propulsion rod 502. The front end of the fixed hydraulic propulsion rod 501 is fixed to the inner convex plate 404, and the front end of the dynamic hydraulic propulsion rod 502 is fixed to the mating plate 503. The mating plate 503 is fixed to the rear connecting ring 403 and the inner convex plate 404 by mating bolts, which can reduce the assembly difficulty.

[0029] The reaction force assembly 6 includes a force-bearing plate 601, which is arc-shaped. A filling block 602 is fixed on the force-bearing plate 601 and is fixed to the rear end of the fixed hydraulic push rod 501, thus expanding the range of the reaction force. A movable block 603 is fixed to the rear end of the movable hydraulic push rod 502, and a stabilizing plate 604 is fixed to the rear end face of the movable block 603. There are three stabilizing plates 604, which are vertically arranged. In use, the stabilizing plates 604 are embedded in the side wall of the pit, which can improve stability and prevent the force-bearing plate 601 from shifting position. The force-bearing plate 601 is provided with a snap-fit ​​groove for use with the movable block 603. The snap-fit ​​groove is provided with a slot that allows the stabilizing plate 604 to pass through. The stabilizing plate 604 extends through the slot to the other side of the force-bearing plate 601, which makes it easy to use the stabilizing plate 604 to help fix the position of the force-bearing plate 601.

[0030] This reaction structure provides good stability support at the rear and makes the pipe body 2 more stable and uniform under force through the front filling structure 4 and the push iron ring 3. The reaction component 6 is easy to disassemble and assemble, reducing the difficulty of installation for personnel. When using it, first, a foundation pit of sufficient depth needs to be dug, then the force plate 601 and the fixed hydraulic push rod 501 are erected, and then the dynamic hydraulic push rod 502 is installed. The front filling structure 4 is then installed in place. At this time, external barriers can be set on the front filling structure 4. Then, the fixed hydraulic push rod 501 and the dynamic hydraulic push rod 502 are extended to prevent the force plate 601 from shifting during pipe jacking, while pressing the stabilizing plate 604 into the side wall of the foundation pit. After setting the position of the tunneling device 1, pipe jacking work can begin.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reaction structure for a double-compartment circular jacking pipe in a power utility tunnel, characterized in that: The system includes a tunneling device (1), on which an intermediate ring (101) is rotatably mounted. A pipe body (2) is connected to the rear end of the intermediate ring (101). A pusher ring (3) is provided at the rear end of the pipe body (2). A front-end filling structure (4) is fixed at the rear end of the pusher ring (3). A hydraulic propulsion group (5) is installed at the rear end of the front-end filling structure (4). A reaction force assembly (6) is provided at the rear end of the hydraulic propulsion group. The hydraulic propulsion group (5) includes a fixed hydraulic push rod (501) and a dynamic hydraulic push rod (502). The reaction force assembly... The component (6) includes a force-bearing plate (601), on which a filling block (602) is fixed and fixed to the rear end of the fixed hydraulic push rod (501). A movable block (603) is fixed to the rear end of the dynamic hydraulic push rod (502). A plurality of stabilizing plates (604) are fixed to the rear end face of the movable block (603). The force-bearing plate (601) is provided with a slot through which the stabilizing plate (604) of the movable block (603) passes. The stabilizing plate (604) extends through the slot to the rear side of the force-bearing plate (601) to be embedded in the side wall of the pit.

2. The reaction structure for a double-compartment circular jacking pipe in a power utility tunnel according to claim 1, characterized in that: The bottom of the pipe body (2) is provided with a transport track plate (7), and the bottom of the transport track plate (7) is fixed with a support foot (701).

3. The reaction structure for a double-compartment circular jacking pipe in a power utility tunnel according to claim 1, characterized in that: The front end of the pusher ring (3) is provided with a snap-fit ​​part (301) that cooperates with the inner wall of the pipe body (2), and the rear end face of the pusher ring (3) is provided as a force-bearing end face (302).

4. The reaction structure for a double-compartment circular jacking pipe in a power utility tunnel according to claim 1, characterized in that: The front filling structure (4) includes a front connecting ring (401), which is fixed to the rear end face of the push iron ring (3) by a front bolt. A support plate (402) is fixed on the front connecting ring (401), and a rear connecting ring (403) is fixed at one end of the support plate (402).

5. The reaction structure for a double-compartment circular jacking pipe in a power utility tunnel according to claim 4, characterized in that: An inner convex plate (404) is fixed on the rear connecting ring (403) corresponding to the fixed hydraulic push rod (501) and the dynamic hydraulic push rod (502). The front end of the fixed hydraulic push rod (501) is fixed to the inner convex plate (404), and the front end of the dynamic hydraulic push rod (502) is fixed to a docking plate (503). The docking plate (503) is fixed to the rear connecting ring (403) and the inner convex plate (404) by docking bolts.

6. The reaction structure for a double-compartment circular jacking pipe in a power utility tunnel according to claim 1, characterized in that: The load-bearing plate (601) is arc-shaped.

7. The reaction structure for a double-compartment circular jacking pipe in a power utility tunnel according to claim 1, characterized in that: The stabilizing plates (604) are three in number and arranged vertically.

8. The reaction structure for a double-compartment circular jacking pipe in a power utility tunnel according to claim 2, characterized in that: Rollers that rotatably mount on the transport track plate (7) and contact the bottom of the pipe body (2) are provided.

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