Embedded pipe bridge structure
Through the embedded pipe bridge structure, the pipe is protected by groove-type pipe bridges and backfilling, the problem of easy damage when exposed to the outside is solved, and better insulation effect and durability are achieved, and the solution is solved without increasing the bridge width. Pedestrian traffic problems.
Patent Information
- Application Number
- CN202420891834.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-26
AI Technical Summary
When existing pipe bridges cross rivers or canyons, the pipelines are exposed and are susceptible to wind, sun and rain, resulting in reduced durability, especially in cold areas with poor insulation effect in winter and difficult to operate due to freezing.
Adopt an embedded pipe bridge structure, including multiple bridge piers, groove-type pipe bridges and pipelines. The cross-section of the groove-type pipe bridge is grooved, and the pipeline is arranged in the groove of the groove-type pipe bridge to be filled with backfilling, groove bottom plate and The side walls are poured together, the pipeline piers are equipped with arc-shaped grooves, the outer surface is covered with insulation materials, and drainage holes and protective railings are installed on the side walls.
It enhances the winter insulation effect and durability of the pipeline, reduces the impact of the external environment, improves the reliability of water transmission, and the side wall structure enhances the bending resistance of the bridge, taking into account pedestrian traffic problems on both sides of the Taiwan Strait.
Smart Images
Figure CN222183039U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses an embedded pipe bridge structure, belonging to the technical field of pipelines. Background Art
[0002] Pipe bridges are bridge-like structures designed for water pipes, oil pipes, gas pipes and other pipelines to cross rivers or canyons. When pipeline construction encounters natural or artificial obstacles such as rivers, lakes, seas, railways, roads, valleys, etc., bridges are built to pass through. In long-distance water transmission projects, when pressure pipelines cross rivers, pipe bridges are often used.
[0003] The common pipe bridge type is to arrange the pressure pipe on the bridge deck, and the pipe is fixed to the bridge deck through piers. The pipe is exposed to the outside and is easily affected by wind, sun, rain, etc., resulting in reduced durability. Especially in the cold northern regions, seasonal changes lead to large temperature differences, which can easily cause pipe damage. At the same time, the pipe insulation effect is poor during water delivery in winter, and it is difficult to operate due to freezing. Utility Model Content
[0004] The utility model overcomes the shortcomings of the prior art and proposes an embedded pipe bridge structure, comprising: a plurality of bridge piers, pipes and at least one trough-type pipe bridge;
[0005] The plurality of bridge piers are arranged in sequence along the length direction of the tube bridge;
[0006] The grooved pipe bridge is erected on the upper ends of the plurality of bridge piers, the cross section of the grooved pipe bridge is groove-shaped, and the groove of the grooved pipe bridge faces a direction away from the plurality of bridge piers;
[0007] The pipeline is arranged in the groove of the groove-type pipe bridge, and the groove is filled with backfill material, and the backfill material is located on both sides and the top of the pipeline.
[0008] Preferably, the trough-type pipe bridge comprises a trough bottom plate and two side walls;
[0009] The trough bottom plate is arranged on the upper surface of the plurality of bridge piers;
[0010] The two side walls are respectively fixed on both sides of the surface of the trough bottom plate away from the bridge pier.
[0011] Preferably, the trough bottom plate and the two side walls are cast in one piece.
[0012] Preferably, it also includes a pipe bridge cap beam;
[0013] The pipe bridge cap beam is erected on the upper ends of the plurality of bridge piers and is located between the plurality of bridge piers and the trough-type pipe bridge.
[0014] Preferably, the upper surface of the pipe bridge cap beam is provided with a first groove matching the grooved pipe bridge;
[0015] The groove bottom plate of the groove-type pipe bridge is located in the first groove.
[0016] Preferably, a pipeline buttress is provided in the trough-type pipe bridge;
[0017] The upper surface of the pipeline buttress is provided with an arc-shaped groove matching the pipeline;
[0018] The bottom of the pipeline is arranged on the arc-shaped groove.
[0019] Preferably, the outer surface of the pipe is coated with a heat-insulating material.
[0020] Preferably, a surface layer is sequentially paved on the backfill material.
[0021] Preferably, protective railings are respectively provided on the two side walls.
[0022] Preferably, at least one side of the side wall is provided with a plurality of drainage holes in sequence along the extension direction of the pipe bridge.
[0023] Beneficial effects: (1) The utility model enhances the heat preservation effect of pipelines in winter, enhances the durability of pipelines, and the anti-corrosion layer of pipelines protects pipelines from ultraviolet rays, reduces the impact of the external environment on pipelines, enhances water delivery reliability, and improves the water delivery guarantee rate.
[0024] (2) The upper structure of the pipe bridge adopts a trough-shaped reinforced concrete structure design. The side wall height can meet the thickness of the soil cover for the buried pipes and can serve as the upper flip beam structure of the bridge. Together with the trough bottom plate, it is loaded together, thus enhancing the ability of the large-span conventional reinforced concrete structure to resist the longitudinal bending moment. While achieving the thermal insulation effect, it is also beneficial to the load-bearing of the bridge structure.
[0025] (3) Without increasing the width of the bridge, the pedestrian traffic problem on both sides of the river can be solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic cross-sectional view of the pipe bridge structure in the embodiment of the utility model;
[0027] In the figure: 1. Bridge pier; 2. Pipe bridge cap beam; 3. Trough pipe bridge; 4. Pipeline pier; 5. Pipe; 6. Polyurethane insulation layer; 7. Geomembrane waterproofing layer; 8. Pre-embedded reinforcement bars in piers; 9. Drainage holes; 10. Guardrails; 11. Slag; 12. Surface layer; 13. Anti-filtration geotextile. DETAILED DESCRIPTION
[0028] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems and devices are omitted to avoid unnecessary details that hinder the description of the present invention.
[0029] The preferred technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0030] When water pipes, oil pipes, gas pipes, etc. encounter obstacles such as rivers, bridge-like structures are generally erected to allow the pipeline 5 to pass, that is, a pipe bridge is erected. This embodiment takes the water supply project of three counties in Yulin as an example to explain the utility model in detail.
[0031] like Figure 1 As shown, a buried pipe bridge structure includes: multiple bridge piers 1, pipes 5 and at least one groove-type pipe bridge 3; the multiple bridge piers 1 are arranged in sequence along the length direction of the pipe bridge; the groove-type pipe bridge 3 is erected on the upper ends of the multiple bridge piers 1, the cross-section of the groove-type pipe bridge 3 is groove-shaped, and the groove of the groove-type pipe bridge 3 faces the direction away from the multiple bridge piers 1; the pipe 5 is arranged in the groove of the groove-type pipe bridge 3, and the groove is filled with backfill material, and the backfill material is located on both sides and the top of the pipe 5.
[0032] Specifically, in this embodiment, the obstacle to be crossed is a river, and the pipe 5 is a water pipe. In this embodiment, the position of the pipe bridge, the arrangement of the pipe bridge, the angle between the pipe bridge and the mainstream of the river, etc. are determined according to the river flow and the characteristics of the mainstream, so as to determine the total span and single span of the pipe bridge. Specifically, in this embodiment, the river-crossing pipe 5 is a plastic-coated composite steel pipe with a pipe diameter of 0.8m, the total span of the pipe bridge is 60m, and the single span is 15m.
[0033] The locations of multiple bridge piers 1 are determined on the river. Specifically, the present embodiment includes at least 5 bridge piers 1. A groove-type pipe bridge 3 is set up on the upper ends of the multiple bridge piers 1. The cross section of the groove-type pipe bridge 3 is groove-shaped. The specific groove shape can be adjusted according to actual conditions, including U-shaped groove, V-shaped groove and rectangular groove, etc. The groove faces the direction away from the bridge pier 1, that is, upward. The pipe 5 is set in the groove-type pipe bridge 3, and backfill is set in the groove of the groove-type pipe bridge 3, so that the pipe 5 is buried in the backfill. To protect the pipe 5 and prevent it from being exposed. It should be understood that the cross-sectional area of the groove of the groove-type pipe bridge 3 is much larger than the cross-sectional area of the pipe 5, so that the pipe 5 is set in the groove, and the backfill is filled on both sides and the top of the pipe 5.
[0034] Furthermore, the trough-type pipe bridge 3 includes a trough bottom plate and two side walls; the trough bottom plate is arranged on the upper surface of the plurality of bridge piers 1; and the two side walls are respectively fixed on both sides of the surface of the trough bottom plate away from the bridge pier 1 .
[0035] Specifically, the trough pipe bridge 3 in this embodiment includes a trough bottom plate and two side walls. The trough of the trough pipe bridge 3 is a rectangular groove, the width of the groove is 1.8m, the height of the two side walls is 1.5m, the thickness of the trough bottom plate is 0.45m, and the thickness of the side wall is 0.3m. It should be understood that when designing the trough pipe bridge 3, it is necessary to ensure that the net distance between the pipeline 5 and the side walls on both sides of the trough pipe bridge 3 is not less than 0.4m, the distance between the pipeline 5 and the top of the trough bottom plate is not less than 0.15m, and the minimum thickness of the backfill at the top of the pipeline 5 is not less than 0.5m. Therefore, the groove width, height and pipe bridge thickness of the trough pipe bridge 3 are determined according to the pipeline 5. The size, shape and other parameters of the trough pipe bridge 3 also need to be calculated according to different load combinations. The longitudinal, longitudinal and transverse bending moments of the trough pipe bridge 3 are calculated. After structural calculation, the final structural dimensions of the trough pipe bridge 3 meet both the layout requirements of the pipeline 5 and the structural calculation requirements.
[0036] The trough bottom plate of the trough-type pipe bridge 3 in this embodiment enhances the longitudinal bending resistance of the pipe bridge. The side walls on both sides of the trough bottom plate serve as the upturned beam structure of the pipe bridge and bear force together with the trough bottom plate, thereby enhancing the ability of the large-span conventional reinforced concrete structure to resist the longitudinal bending moment.
[0037] Furthermore, the trough bottom plate and the two side walls are cast in one piece.
[0038] Specifically, in this embodiment, the trough bottom plate and the two side walls are cast in one piece, and the material of the trough-type pipe bridge 3 is reinforced concrete to ensure the structural safety of the trough-type pipe bridge 3 .
[0039] Furthermore, it also includes a pipe bridge cap beam 2; the pipe bridge cap beam 2 is erected on the upper ends of the plurality of bridge piers 1 and is located between the plurality of bridge piers 1 and the trough-type pipe bridge 3.
[0040] Specifically, in this embodiment, a pipe bridge cap beam 2 is also included, which is erected on the upper ends of the plurality of bridge piers 1 and located between the plurality of bridge piers 1 and the trough pipe bridge 3 to support, distribute and transfer the load of the upper pipeline 5 and the trough pipe bridge 3 .
[0041] Furthermore, a first groove matching the grooved pipe bridge 3 is provided on the upper surface of the pipe bridge cap beam 2; and the groove bottom plate of the grooved pipe bridge 3 is located in the first groove.
[0042] Furthermore, a pipeline buttress 4 is arranged in the grooved pipe bridge 3; an arc-shaped groove matching the pipeline 5 is arranged on the upper surface of the pipeline buttress 4; and the bottom of the pipeline 5 is arranged on the arc-shaped groove.
[0043] Specifically, in this embodiment, a pipe pier 4 is provided in the trough-type pipe bridge 3, and an arc groove matching the pipe 5 is provided on the upper surface of the pipe pier 4, and the bottom of the pipe 5 is provided on the arc groove. Specifically, in this embodiment, a pier pre-embedded dowel bar 8 is embedded in the pier to ensure that the pier and the trough-type pipe bridge 3 are connected as a whole, and the stability of the pier is not affected when the pipeline is deformed longitudinally.
[0044] Furthermore, the outer surface of the pipe 5 is coated with a heat-insulating material.
[0045] To further protect the pipeline 5, the outer surface of the pipeline 5 is coated with a thermal insulation material. Specifically, in this embodiment, the outer surface of the pipeline 5 is sequentially coated with a 100 mm thick polyurethane thermal insulation layer 6 and a geomembrane waterproof layer 7, wherein the geomembrane is 0.5 mm thick and 300 g / m.
[0046] Furthermore, a surface layer 12 is sequentially laid on the backfill material.
[0047] Specifically, in this embodiment, the backfill material filled in the trough pipe bridge 3 is slag 11. In this embodiment, the relative density of the slag 11 after filling and compaction is not less than 0.6. It should be understood that the backfill material can also be soil, foam concrete, lightweight cementitious material, etc. The slag 11 is filled to 0.5m above the top of the pipe 5, and the surface layer 12 is paved in sequence on the upper layer of the slag 11. The surface layer 12 includes a base layer and a flat layer, wherein the base layer is a 25mm cement mortar layer, specifically a 1:3 cement mortar, and is leveled. The flat layer can be made of cement concrete or asphalt concrete. The flat layer in this embodiment is a 40mm thick floor tile. Specifically, in this embodiment, the surface layer 12 also includes a waterproof layer arranged between the floor tile and the cement mortar layer. Specifically, the waterproof layer in this embodiment is a 1.5mm thick non-tar polyurethane waterproof coating and a 1.2mm thick EPDM butyl rubber coil. The surface layer 12 is paved on the backfill material to use the surface layer 12 as a passage to provide convenience for pedestrians. The waterproof layer can effectively prevent the accumulated water on the road surface from penetrating into the trough-type pipe bridge 3 .
[0048] Furthermore, guardrails 10 are respectively provided on the two side walls.
[0049] Specifically, guardrails 10 are respectively arranged on the two side walls, and the upper surface of the trough-shaped pipe bridge 3 filled with backfill material is used as a sidewalk. The guardrails 10 on the side walls on both sides are used to protect pedestrians from falling under the bridge.
[0050] Furthermore, at least one side wall is provided with a plurality of drainage holes 9 in sequence along the extension direction of the pipe bridge.
[0051] Specifically, in this embodiment, a drainage hole 9 is provided at intervals of 4 m on one side wall, so that water can be drained as quickly as possible when the pipe 5 leaks or rainwater seeps in, so as to avoid damage to the pipe 5 caused by the flooded environment. Specifically, in this embodiment, a filter geotextile 13 is provided at each drainage hole 9, and the filter geotextile 13 is provided at the drainage port 9 in the trough-type pipe bridge 3, so as to prevent the slag 11 filled in the trough-type pipe bridge 3 from being lost.
[0052] The utility model enhances the heat preservation effect of the pipeline 5 in winter, enhances the durability of the pipeline 5, the anti-corrosion layer of the pipeline 5 protects the pipeline 5 from the influence of ultraviolet rays, reduces the influence of the external environment on the pipeline 5, enhances the reliability of water delivery, and improves the water delivery guarantee rate.
[0053] The upper structure of the pipe bridge adopts a trough-type reinforced concrete structure design. The side wall height can meet the soil cover thickness of the buried pipe 5 and can serve as the upturned beam structure of the bridge. Together with the trough bottom plate, it is stressed and enhances the ability of large-span conventional reinforced concrete structures to resist longitudinal bending moments. While achieving the thermal insulation effect, it is also beneficial to the stress of the bridge structure.
[0054] Without increasing the width of the bridge, the pedestrian traffic problem on both sides can be solved.
[0055] The above are only a few embodiments of the utility model, and are not intended to limit the utility model in any form. Although the utility model is disclosed as above in the preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the profession, without departing from the scope of the technical solution of the utility model, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.
Claims
1. A buried pipe bridge structure, characterized in that: include: a plurality of bridge piers, pipes and at least one channel-type pipe bridge; The plurality of bridge piers are arranged in sequence along the length direction of the tube bridge; The grooved pipe bridge is erected on the upper ends of the plurality of bridge piers, the cross section of the grooved pipe bridge is groove-shaped, and the groove of the grooved pipe bridge faces a direction away from the plurality of bridge piers; The pipeline is arranged in the groove of the groove-type pipe bridge, and the groove is filled with backfill material, and the backfill material is located on both sides and the top of the pipeline.
2. The buried pipe bridge structure according to claim 1, characterized in that: The trough-type pipe bridge comprises a trough bottom plate and two side walls; The trough bottom plate is arranged on the upper surface of the plurality of bridge piers; The two side walls are respectively fixed on both sides of the surface of the trough bottom plate away from the bridge pier.
3. The buried pipe bridge structure according to claim 2, characterized in that: The trough bottom plate and the two side walls are cast in one piece.
4. The buried pipe bridge structure according to claim 1, characterized in that: Also included are pipe bridge cap beams; The pipe bridge cap beam is erected on the upper ends of the plurality of bridge piers and is located between the plurality of bridge piers and the trough-type pipe bridge.
5. The buried pipe bridge structure according to claim 4, characterized in that: The upper surface of the pipe bridge cap beam is provided with a first groove matching the grooved pipe bridge; The groove bottom plate of the groove-type pipe bridge is located in the first groove.
6. The buried pipe bridge structure according to claim 1, characterized in that: The trough-type pipe bridge is provided with a pipe support pier; The upper surface of the pipeline buttress is provided with an arc-shaped groove matching the pipeline; The bottom of the pipeline is arranged on the arc-shaped groove.
7. The buried pipe bridge structure according to claim 1, characterized in that: The outer surface of the pipeline is covered with a heat-insulating material.
8. The buried pipe bridge structure according to claim 1, characterized in that: A surface layer is sequentially paved on the backfill material.
9. The buried pipe bridge structure according to claim 2, characterized in that: The two side walls are respectively provided with guardrails.
10. The buried pipe bridge structure according to claim 2, characterized in that: A plurality of drainage holes are sequentially opened on at least one side of the side wall along the extension direction of the pipe bridge.