Splicing type concrete pipeline
By using a combination of curved lining, shock absorbing spring and sealing ring at the spliced concrete pipeline connection, the problem of insufficient shear resistance of the pipeline is solved, and efficient leakage prevention effect is achieved when faults are active.
Patent Information
- Application Number
- CN202520431418.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2035-03-13
AI Technical Summary
When existing spliced concrete pipelines face shear forces that are active in faults, they have poor shear resistance, which can easily lead to cracks and media leakage at the pipe connections.
At least two arcuate liners are arranged at the pipe connection to form a housing cavity, and a shock absorbing spring and a sealing ring are provided on the arcuate liners. By using the cooperation of the shock absorbing spring and sealing ring, the influence of the pipe on the arcuate liners is reduced and the sealing properties at the pipe connection are maintained.
It effectively improves the leakage prevention capability of the pipeline when facing shear forces, ensures that the pipeline connection remains sealed when the fault is active, and avoids medium leakage.
Smart Images
Figure CN222937395U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline protection, and particularly relates to a spliced concrete pipeline. Background Art
[0002] As a transmission carrier for conveying media, the spliced concrete pipeline is often buried underground to form a transmission network. It is a transmission link connecting upstream resources and downstream users and is one of the important facilities for ground engineering.
[0003] However, due to the large east-west span of our country, the transportation pipeline needs to cross multiple provinces and cities and regions, and the concrete pipeline inevitably has to cross faults. When the fault moves, the concrete pipeline will generate radial vibration deformation under the action of shear force in the soil displacement caused by the fault, which easily leads to the damage of the concrete pipeline.
[0004] For the buried concrete pipelines in the prior art, the adjacent concrete pipelines are usually rigidly connected, such as flange connection, socket connection and other methods. Therefore, when facing the shear force of fault movement, due to the excessive stress at the connection, cracks are likely to appear at the connection between the pipelines, resulting in the leakage of the medium inside the pipeline, and the shear resistance of the pipeline is poor. Therefore, there are obvious deficiencies in the current spliced concrete pipelines. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a spliced concrete pipeline, which can solve the problems that the shear resistance of the pipeline in the prior art is poor, and when facing the shear force exerted by fault movement, the medium inside the pipeline is easy to leak from the gap at the connection of adjacent pipelines, and a spliced concrete pipeline is proposed.
[0006] The embodiment of the utility model is realized by the following technical solutions: including at least two arc-shaped liners, at least two arc-shaped liners are arranged around the connection of two pipelines. An accommodation cavity is arranged inside the arc-shaped liner. At both ends of the accommodation cavity, there are abutting edges, and the abutting edges are along the radial direction parallel to the pipeline. A limiting edge is arranged on the side of the pipeline, and the abutting edge abuts tightly against the limiting edge. The end of the arc-shaped liner is provided with a shock-absorbing edge along the axial direction parallel to the pipeline, and a shock-absorbing spring is arranged on the shock-absorbing edge, and the shock-absorbing spring abuts against the side of the pipeline.
[0007] Furthermore, a first sealing ring is arranged on the abutting edge, and the first sealing ring abuts tightly against the limiting edge.
[0008] Furthermore, a second sealing ring is arranged at one end of the shock-absorbing edge close to the abutting edge, and the second sealing ring abuts tightly against the side of the pipeline.
[0009] Furthermore, the width of the limiting edge is greater than the width of the abutting edge.
[0010] Further, an elastic sleeve is provided at the connection of the two pipes.
[0011] Further, anti-floating piles are provided on the surface of the arc-shaped lining plate, and the anti-floating piles are arranged in the vertical direction.
[0012] Further, spiral fins are provided at the ends of the anti-floating piles.
[0013] The technical solutions of the embodiments of the present utility model at least have the following advantages and beneficial effects:
[0014] 1. In the present utility model, by surrounding the connection of the two pipes with a plurality of arc-shaped lining plates, the connection seam of the pipes is wrapped in the accommodation cavity, making the abutting edge and the limiting edge abut tightly, so that the accommodation cavity is in a closed state. The damping spring is used to connect the damping edge with the side surface of the pipe. When the pipe is affected by fault activities and cracks appear at the connection, the deformation of the damping spring is utilized to reduce the influence of the deviated pipe on the arc-shaped lining plate, and the accommodation cavity is made to communicate with the cracked connection seam. The accommodation cavity is used to wrap the crack at the connection of the pipes, so that the adjacent pipes are still in a sealed state, improving the anti-leakage ability of the pipes when facing shear forces.
[0015] 2. In the present utility model, by providing the first sealing ring and the second sealing ring, the first sealing ring and the second sealing ring are used to ensure the sealing performance between the arc-shaped lining sleeve and the side surface of the pipe, so that the accommodation cavity is still in a closed state when the pipe is displaced. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic diagram of the overall structure of the spliced concrete pipe provided by the present utility model;
[0018] Figure 2 It is a cross-sectional view of the internal structure of the spliced concrete pipe of the present utility model;
[0019] Figure 3 is Figure 2 an enlarged schematic view of part A in
[0020] Icons: 100 - pipe, 110 - elastic sleeve, 120 - limiting edge, 200 - arc-shaped lining plate, 210 - connecting edge, 220 - shock-absorbing edge, 221 - shock-absorbing spring, 222 - second sealing ring, 223 - third sealing ring, 230 - abutting edge, 231 - first sealing ring, 240 - accommodating cavity, 250 - air release valve, 260 - anti-floating pile, 261 - spiral blade. Detailed implementation mode
[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0023] Embodiment
[0024] The following is further described in conjunction with specific embodiments. Refer to Figure 1 and Figure 2 As shown, the present utility model is a spliced concrete pipe, including two pipes 100 and at least two arc-shaped lining plates 200. The ends of two adjacent pipes 100 are connected relatively. An elastic sleeve 110 is sleeved on the sides of two adjacent pipes 100, and the elastic sleeve 110 wraps the connection seam between the pipes 100 inside. A limiting edge 120 is provided on the side of the pipe 100, and the limiting edge 120 protrudes from the side of the pipe 100, and a distance is reserved between the limiting edge 120 and the end of the pipe 100. At least two arc-shaped lining plates 200 are sequentially arranged around the ends of the two pipes 100, and the elastic sleeve 110 is wrapped inside. A connecting edge 210 is provided on one side of the arc-shaped lining plate 200 parallel to the length direction of the pipe 100, and a connecting hole is opened on the connecting edge 210. The connecting edges 210 on adjacent arc-shaped lining plates 200 abut against each other and are connected by bolts.
[0025] Refer to Figure 2 and Figure 3As shown, shock-absorbing edges 220 are provided at both ends of the arc-shaped liner 200. The shock-absorbing edges 220 are parallel to the side surface of the pipeline 100. A plurality of shock-absorbing springs 221 are provided on the side of the shock-absorbing edges 220 facing the pipeline 100, and the shock-absorbing springs 221 abut against the side surface of the pipeline 100. A second sealing ring 222 is provided at one end of the shock-absorbing edge 220 close to the center of the arc-shaped liner 200, and the second sealing ring 222 abuts against the side surface of the pipeline 100. A third sealing ring 223 is provided at one end of the shock-absorbing edge 220 away from the center of the arc-shaped liner 200, and the third sealing ring 223 abuts against the side surface of the pipeline 100. The third sealing ring 223 is used to seal the gap between the shock-absorbing edge 220 and the side surface of the pipeline 100 to prevent soil from entering the gap between the shock-absorbing edge 220 and the side surface of the pipeline 100 and affecting the normal operation of the shock-absorbing springs 221.
[0026] Refer to Figure 2 and Figure 3 As shown, an abutting edge 230 is provided inside the arc-shaped liner 200. The abutting edge 230 is arranged along the direction perpendicular to the axis of the pipeline 100, and the abutting edge 230 and the shock-absorbing edge 220 form a stepped shape. A first sealing ring 231 is provided on the abutting edge 230, and the first sealing ring 231 abuts against the limiting edge 120, and the width of the abutting edge 230 is smaller than the width of the limiting edge 120. The first sealing ring 231 is used to seal the gap between the abutting edge 230 and the limiting edge 120. The abutting edge 230, the limiting edge 120, the side surfaces of the two ends of the pipeline 100, and the inner side surface of the arc-shaped liner 200 form a containing cavity 240, and the containing cavity 240 is used to contain the leaked medium. An air release valve 250 is provided on the surface of the arc-shaped liner 200, and the air release valve 250 communicates the containing cavity 240 with the outer wall of the arc-shaped liner 200. The air release valve 250 is used to extract the gas in the containing cavity 240 to make the containing cavity 240 in a nearly vacuum state.
[0027] Refer to Figure 1 As shown, anti-floating piles 260 are also provided on the outer wall of the arc-shaped liner 200, and the anti-floating piles 260 protrude from the outer wall of the arc-shaped liner 200. The anti-floating piles 260 are arranged in the vertical direction, and spiral fins 261 are provided at the ends of the anti-floating piles 260. The anti-floating piles 260 are used to be buried in the soil layer so that the arc-shaped liner 200 is closely attached to the soil layer to form a whole. When the pipeline 100 is subjected to fault movement force, the arc-shaped liner 200 moves with the soil layer to prevent local deformation of the arc-shaped liner 200.
[0028] The working process of this embodiment is as follows: A plurality of arc-shaped liners 200 are arranged around the connection of two pipelines 100, and the plurality of arc-shaped liners 200 are connected to each other by bolts. The third sealing ring 223, the shock-absorbing spring 221, and the second sealing ring 222 on the arc-shaped liner 200 respectively abut against the side surface of the pipeline 100. The first sealing ring 231 abuts against the limiting edge 120, so that the accommodating cavity 240 is in a sealed state, and the connection seam of the two pipelines 100 is located in the accommodating cavity 240. When the two pipelines 100 are displaced in the radial direction due to the influence of fault activities, the two displaced pipelines 100 respectively abut against the shock-absorbing springs 221 at both ends of the arc-shaped liner 200, which is used to reduce the influence of the pipelines 100 on the position of the arc-shaped liner 200. At the same time, the width of the limiting edge 120 is greater than the width of the abutting edge 230, which is used to increase the moving distance of the pipeline 100 in the radial direction. When cracks appear in the connection seam, the accommodating cavity 240 is used to accommodate the medium leaking from the connection seam, avoiding the leakage of the medium into the soil.
[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A spliced concrete pipe, characterized in that: The invention comprises at least two arc-shaped lining plates (200), wherein at least two arc-shaped lining plates (200) are arranged around the connection between two pipes (100), wherein a receiving cavity (240) is arranged inside the arc-shaped lining plate (200), and abutting edges (230) are arranged at both ends of the receiving cavity (240), wherein the abutting edges (230) are arranged along a radial direction parallel to the pipe (100), and a limiting edge (120) is arranged on the side of the pipe (100), wherein the abutting edges (230) are tightly abutted against the limiting edges (120), and a damping edge (220) is arranged at the end of the arc-shaped lining plate (200) along an axial direction parallel to the pipe (100), and a damping spring (221) is arranged on the damping edge (220), and the damping spring (221) abuts against the side of the pipe (100).
2. The spliced concrete pipe according to claim 1, characterized in that: A first sealing ring (231) is provided on the abutting edge (230), and the first sealing ring (231) is tightly abutted against the limiting edge (120).
3. The spliced concrete pipe according to claim 1, characterized in that: A second sealing ring (222) is provided at one end of the shock-absorbing edge (220) close to the abutting edge (230), and the second sealing ring (222) is tightly abutted against the side surface of the pipeline (100).
4. The spliced concrete pipe according to claim 1, characterized in that: The width of the limiting edge (120) is greater than the width of the abutting edge (230).
5. The spliced concrete pipe according to claim 1, characterized in that: An elastic sleeve (110) is provided at the connection point of the two pipes (100).
6. The spliced concrete pipe according to claim 1, characterized in that: Anti-floating piles (260) are arranged on the surface of the arc-shaped lining plate (200), and the anti-floating piles (260) are arranged in a vertical direction.
7. The spliced concrete pipe according to claim 6, characterized in that: The end of the anti-floating pile (260) is provided with a spiral sheet (261).