Culvert pipe and water conveying pipeline combined composite structure

Abstract

The utility model discloses a culvert pipe and water conveying pipeline combined composite structure. The novel composite water conveying pipeline has the advantages that the polyethylene PE pipe is arranged in the steel corrugated culvert pipe, on one hand, the polyethylene PE pipe with the pipe diameter meeting the water conveying requirement is adopted to bear internal water pressure, and the novel composite water conveying pipeline has the advantages of being resistant to corrosion, not prone to leakage, high in toughness, high in flexibility, high in scratch resistance, high in crack transfer resistance and the like; on the other hand, the large-caliber steel corrugated culvert pipe bears external load pressure and has certain rigidity and flexibility, and meanwhile, the space between the PE pipe and the steel corrugated culvert pipe is filled with materials capable of adapting to deformation such as medium-coarse sand and sand cobbles, so that the deformation adapting capacity of the water conveying pipeline is improved, and the service life of the water conveying pipeline is prolonged. Deformation, cracking, pulling-off and even breakage of the water conveying pipeline during foundation settlement during use are effectively avoided, so that the water conveying pipeline is better in safety during use, and life and property safety of surrounding enterprises and public institutions and the masses is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of water pipeline technology, specifically to a composite structure combining a culvert and a water pipeline. Background Art

[0002] Throughout the history of water diversion projects, various natural or man-made geological factors have frequently caused varying degrees of settlement and deformation of the foundation of water pipelines. This has led to deformation, cracking, pull-out, and even breakage of long-distance pressure water pipelines during operation, which seriously affects the water safety of the water supply recipients. It may also cause flooding hazards in the surrounding area due to pipeline accidents, resulting in unnecessary economic losses and even endangering the safety of some nearby buildings and people.

[0003] In long-distance pressure water transmission pipelines such as water diversion projects, rigid pipelines are commonly used, such as steel pipes (SP), prestressed concrete pipes (PCP), and prestressed steel cylinder concrete pipes (PCCP). These are highly susceptible to damage due to foundation settlement and deformation. Rigid pipelines with flexible joints, such as ductile iron pipes (DIP), are also prone to spigot and socket detachment when significant foundation settlement occurs. Flexible pipelines, such as polyethylene (PE) pipes, have poor resistance to external soil pressure, and their cross-sections are easily deformed when significant foundation settlement occurs. In short, when the surface experiences significant uneven settlement due to factors such as mining subsidence, earthquakes, and loess collapsibility, existing pipelines are prone to deformation, cracking, detachment, and even breakage, directly affecting the water supply safety of water-using enterprises and endangering the lives and property of surrounding businesses and residents. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a composite structure that combines a culvert and a water conveyance pipeline, based on the current state of the technology.

[0005] This utility model is achieved through the following technical solution: This utility model proposes a composite structure combining a culvert and a water conveyance pipeline, including a steel corrugated culvert. A polyethylene (PE) pipe is laid in the middle of the bottom end of the steel corrugated culvert. A medium-coarse sand cushion layer is laid between the bottom end of the PE pipe and the bottom end of the steel corrugated culvert. A pebble cushion layer is laid on both sides above the medium-coarse sand cushion layer inside the steel corrugated culvert. Maintenance passages are also reserved on both sides above the pebble cushion layer inside the steel corrugated culvert.

[0006] Furthermore, a limiting component is installed between the steel corrugated culvert and the polyethylene (PE) pipe, wherein the limiting component includes a handwheel, a screw, a pressure rod, a slide groove, a linkage rod, a mounting plate, a plug rod, and a plug sleeve.

[0007] By adopting the above technical solution, after the polyethylene (PE) pipe is placed on the medium-coarse sand pad, the screw can be rotated by turning the handwheel. After the screw rotates, the linkage rod and the pressure rod will move down synchronously under the action of the thread transmission, so that the polyethylene (PE) pipe can be pressed and limited at the same time as the pressure rod moves down. During the pressing and limiting process, the cooperation between the insertion rod and the insertion sleeve can ensure the accuracy of the position of the polyethylene (PE) pipe after being limited.

[0008] Furthermore, the outer wall of the polyethylene (PE) pipe is in contact with both the medium-coarse sand pad and the pebble pad.

[0009] By adopting the above technical solution, the medium-coarse sand pad and the pebble pad enable the polyethylene (PE) pipe to have good adaptability to deformation.

[0010] Furthermore, the steel corrugated culvert is fixedly connected to the corresponding mounting foundation on the ground.

[0011] By adopting the above technical solution, the steel corrugated culvert gives the water pipeline a certain rigidity to resist the deformation of the water pipeline.

[0012] Furthermore, the mounting plate has an L-shaped structure, and the bottom end of the mounting plate is welded to the inner side of the steel corrugated culvert.

[0013] By adopting the above technical solution, the mounting plate is mainly used to realize the normal installation of the screw.

[0014] Furthermore, there are four inserts, and the bottom ends of all four inserts are welded to the steel corrugated culvert.

[0015] By adopting the above technical solution, the sleeve and the rod cooperate to ensure not only the stable downward movement of the pressure rod, but also the positional accuracy of the polyethylene (PE) pipe after it is limited.

[0016] Furthermore, the plug reserved at the bottom of the insertion rod matches the slot reserved on the insertion sleeve, the linkage rod has a T-shaped structure, and an arc-shaped pressure rod is connected to each end of the linkage rod.

[0017] By adopting the above technical solution, the arc-shaped pressure bar makes the connection between the pressure bar and the outer wall of polyethylene (PE) more tight after it moves downward.

[0018] Furthermore, the screw is rotatably connected to the top of the mounting plate, and the screw is threadedly connected to the linkage rod, which is in sliding engagement with the slide groove.

[0019] By adopting the above technical solution, the sliding fit connection method enables the linkage rod to slide stably between itself and the mounting plate under the action of threaded transmission.

[0020] Compared with the prior art, this utility model has the following advantages:

[0021] To address the problem that existing pipelines are prone to deformation, cracking, pull-out, and even breakage when there is significant uneven settlement on the ground surface due to factors such as mining subsidence, earthquakes, and loess collapsibility, directly affecting the water supply safety of water-using enterprises and endangering the lives and property of surrounding businesses and residents, this utility model adopts a new type of composite water transmission pipeline with a steel corrugated culvert and an embedded polyethylene (PE) pipe. On the one hand, the PE pipe, with a diameter that meets the water transmission requirements, withstands the internal water pressure and has the characteristics of corrosion resistance, low leakage, high toughness, high flexibility, strong resistance to scratches, and rapid crack propagation resistance. On the other hand, the large-diameter steel corrugated culvert withstands the external load pressure and has a certain degree of rigidity and flexibility. At the same time, the space between the PE pipe and the steel corrugated culvert is filled with materials that can adapt to deformation, such as medium-coarse sand and gravel, which can accommodate deformation. This increases the water transmission pipeline's ability to adapt to deformation and effectively avoids deformation, cracking, pull-out, and even breakage when the foundation settles during use. This makes the water transmission pipeline safer during use and effectively protects the lives and property of surrounding businesses and residents. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the composite structure combining a culvert and a water pipeline as described in this utility model;

[0023] Figure 2 This is a schematic diagram of the limiting component in a composite structure combining a culvert and a water pipeline as described in this utility model.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Steel corrugated culvert; 2. Pebble bedding layer; 3. Polyethylene (PE) pipe; 4. Medium-coarse sand bedding layer; 5. Limiting component; 501. Handwheel; 502. Screw; 503. Pressure rod; 504. Slide groove; 505. Linkage rod; 506. Mounting plate; 507. Insert rod; 508. Insert sleeve. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] like Figures 1-2As shown in this embodiment, a composite structure combining a culvert and a water pipeline includes a steel corrugated culvert 1. A polyethylene (PE) pipe 3 is laid in the middle of the bottom end of the steel corrugated culvert 1. A medium-coarse sand cushion layer 4 is laid between the bottom end of the PE pipe 3 and the bottom end of the steel corrugated culvert 1. Pebble cushion layers 2 are laid on both sides above the medium-coarse sand cushion layer 4 inside the steel corrugated culvert 1. The medium-coarse sand cushion layer 4 and the pebble cushion layer 2 give the PE pipe 3 good adaptability to deformation, while the steel corrugated culvert 1 gives the water pipeline a certain rigidity to resist deformation. Maintenance channels are also reserved on both sides above the pebble cushion layer 2 inside the steel corrugated culvert 1, which facilitate convenient inspection and maintenance of the PE pipe 3 in case of damage.

[0028] like Figures 1-2 As shown in this embodiment, a limiting component 5 is also installed between the steel corrugated culvert 1 and the polyethylene PE pipe 3. The limiting component 5 includes a handwheel 501, a screw 502, a pressure rod 503, a sliding groove 504, a linkage rod 505, a mounting plate 506, an insertion rod 507, and a sleeve 508. When the polyethylene PE pipe 3 is placed on the medium-coarse sand cushion layer 4, the screw 502 can be rotated by turning the handwheel 501. After the screw 502 rotates, the linkage rod 505 and the pressure rod 503 will move down synchronously under the action of the thread transmission, so that the polyethylene PE pipe 3 can be pressed and limited while the pressure rod 503 moves down. During the pressing and limiting process, the cooperation of the insertion rod 507 and the sleeve 508 can ensure the accuracy of the position of the polyethylene PE pipe 3 after being limited. The outer wall of the polyethylene PE pipe 3 is in contact with both the medium-coarse sand cushion layer 4 and the cobblestone cushion layer 2. The steel corrugated culvert 1 is fixedly connected to the corresponding installation foundation on the ground.

[0029] like Figures 1-2 As shown, in this embodiment, the mounting plate 506 has an L-shaped structure. The bottom end of the mounting plate 506 is welded to the inner side of the steel corrugated culvert 1. The mounting plate 506 is mainly used to realize the normal installation of the screw 502. There are four inserts 508, and the bottom ends of the four inserts 508 are all welded to the steel corrugated culvert 1. The inserts 508 cooperate with the insert rod 507, which can not only ensure the stable downward movement of the pressure rod 503, but also ensure the positional accuracy of the polyethylene PE pipe 3 after the limit is set.

[0030] like Figures 1-2As shown, in this embodiment, the plug reserved at the bottom of the insertion rod 507 matches the slot reserved on the insertion sleeve 508. The linkage rod 505 has a T-shaped structure, and an arc-shaped pressure rod 503 is connected to each end of the linkage rod 505. The arc-shaped pressure rod 503 makes the pressure rod 503 fit more tightly with the outer wall of polyethylene after it moves down. The screw 502 is rotatably connected to the top of the mounting plate 506, and the screw 502 is threadedly connected to the linkage rod 505. The linkage rod 505 is slidably engaged with the slide groove 504. The sliding engagement connection method allows the linkage rod 505 to slide stably between itself and the mounting plate 506 under the action of threaded transmission.

[0031] The specific implementation process of this embodiment is as follows: First, the steel corrugated culvert 1 is laid on the corresponding ground foundation. Then, a medium-coarse sand bedding layer 4 is laid at the bottom of the steel corrugated culvert 1. Next, the polyethylene (PE) pipe 3 is laid on the medium-coarse sand bedding layer 4. The PE pipe 3 is then fixed in place by the handwheel 501, screw 502, linkage rod 505, and pressure rod 503 in the limiting assembly 5. Then, only a pebble bedding layer 2 needs to be backfilled on both sides of the PE pipe 3, and maintenance channels are reserved on both sides above the PE pipe 3. This allows the water pipeline to be put into use. During use, a polyethylene PE pipe with a diameter that meets the water supply requirements is used. Pipe 3 withstands internal water pressure and features corrosion resistance, leak-proof properties, high toughness, high flexibility, strong resistance to scratches, and rapid crack propagation resistance. Meanwhile, the large-diameter steel corrugated culvert 1 withstands external load pressure, possessing both rigidity and flexibility. Furthermore, the space between the polyethylene (PE) pipe 3 and the steel corrugated culvert 1 is filled with materials such as medium-coarse sand and gravel, which are adaptable to deformation. This increases the water pipeline's ability to adapt to deformation, effectively preventing deformation, cracking, pull-out, or even breakage due to foundation settlement during use. This enhances the safety of the water pipeline during operation, effectively ensuring the safety of life and property for surrounding businesses and residents.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A composite structure combining a culvert and a water pipeline, characterized in that: The culvert includes a steel corrugated culvert (1), in which a polyethylene PE pipe (3) is laid in the middle of the bottom end of the steel corrugated culvert (1), and a medium-coarse sand cushion layer (4) is laid between the bottom end of the polyethylene PE pipe (3) and the bottom end of the steel corrugated culvert (1). A pebble cushion layer (2) is laid on both sides above the medium-coarse sand cushion layer (4) inside the steel corrugated culvert (1). Maintenance passages are also reserved on both sides above the pebble cushion layer (2) inside the steel corrugated culvert (1).

2. The composite structure combining a culvert and a water pipeline according to claim 1, characterized in that: A limiting component (5) is also installed between the steel corrugated culvert (1) and the polyethylene PE pipe (3), wherein the limiting component (5) includes a handwheel (501), a screw (502), a pressure rod (503), a slide groove (504), a linkage rod (505), a mounting plate (506), a plug rod (507), and a plug sleeve (508).

3. The composite structure combining a culvert and a water pipeline according to claim 1, characterized in that: The outer wall of the polyethylene PE pipe (3) is in contact with both the medium-coarse sand pad (4) and the cobblestone pad (2).

4. The composite structure combining a culvert and a water pipeline according to claim 1, characterized in that: The steel corrugated culvert (1) is fixedly connected to the corresponding installation foundation on the ground.

5. The composite structure combining a culvert and a water pipeline according to claim 2, characterized in that: The mounting plate (506) has an L-shaped structure, and the bottom end of the mounting plate (506) is welded to the inner side of the steel corrugated culvert (1).

6. The composite structure combining a culvert and a water pipeline according to claim 2, characterized in that: There are four inserts (508), and the bottom ends of the four inserts (508) are all welded to the steel corrugated culvert (1).

7. The composite structure combining a culvert and a water pipeline according to claim 2, characterized in that: The plug reserved at the bottom of the insertion rod (507) matches the slot reserved on the sleeve (508). The linkage rod (505) has a T-shaped structure, and an arc-shaped pressure rod (503) is connected to each end of the linkage rod (505).

8. The composite structure combining a culvert and a water pipeline according to claim 2, characterized in that: The screw (502) is rotatably connected to the top of the mounting plate (506), and the screw (502) is threadedly connected to the linkage rod (505), and the linkage rod (505) is slidably engaged with the slide groove (504).

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