Pavement drainage pipe and pavement drainage structure

Abstract

The utility model relates to the technical field of road engineering drainage, in particular to a pavement drainage pipe and a pavement drainage structure. The pavement drainage pipe comprises an outer pipe; the outer pipe is arranged on a permeable layer of a highway pavement, one end of the outer pipe is a closed end, the other end of the outer pipe is an open end, the closed end is located in a highway and is higher than the open end, and permeable holes are formed in the pipe wall of the upper portion of the outer pipe in the radial direction. The utility model solves the problem of insufficient drainage capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering drainage, in particular to a road surface drainage pipe and a road surface drainage structure. Background Art

[0002] Highway pavement drainage mainly relies on the composite slope (the vector sum of the transverse slope and the longitudinal slope) to achieve the gravity flow of water and discharge it out of the highway pavement limit. When the main project is superelevated, the section with a smaller composite slope will lead to slow drainage and form a thick water film area; the main line and the main line, the main line and the ramp merge section, the roadbed becomes wider, the drainage path becomes longer, and some areas will form a thick water film area; during the construction process, the lack of quality control measures will cause some sections to have a small slope and depression, forming a thick water film and stagnant water area; during the operation process, the vehicle load and uneven foundation settlement will cause some sections to have a small slope and depression, forming a thick water film and stagnant water area. The thick water film and stagnant water area on the road surface reduce the adhesion of vehicle tires, becoming a safety hazard for high-speed vehicles, and leading to frequent traffic accidents on rainy days.

[0003] Permeable pavement has spatial drainage capacity, but when the road surface is saturated during moderate or heavy rain, the lateral drainage capacity is still insufficient and cannot solve the problem of road surface waterlogging. Utility Model Content

[0004] In view of the deficiencies in the prior art, an object of the embodiments of the present utility model is to provide a road drainage pipe to solve the problem of insufficient drainage capacity.

[0005] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0006] A road drainage pipe comprises an outer pipe; the outer pipe is arranged in a water-permeable layer of a road surface, one end of the outer pipe is a closed end, and the other end is an open end, the closed end is located inside the road, and the closed end is higher than the open end, and a water-permeable hole is arranged on the radial upper pipe wall of the outer pipe.

[0007] Optionally, the drain pipe also includes an inner tube, which is arranged in the lumen of the outer tube, and the inner tube includes a first inner tube and a second inner tube, both ends of the first and second inner tubes are open, and there is a set distance between the inner ends of the first and second inner tubes and the closed end of the outer tube, the outer end of the first or second inner tube is connected to high-pressure water for flushing the lumen of the outer tube, and a heating component is arranged in the lumen of the second or first inner tube.

[0008] Optionally, the tube wall of the outer tube is divided into an upper tube wall and a lower tube wall along a horizontal line passing through the center, and the water-permeable holes are arranged on the upper tube wall and are arranged at intervals along the axial direction of the outer tube.

[0009] Optionally, the axis of the first inner tube and the axis of the second inner tube are both arranged parallel to the axis of the outer tube.

[0010] Optionally, the outer wall of the first inner tube and the outer wall of the second inner tube are both in contact with the inner wall of the inner tube, and the axes of the first inner tube, the second inner tube and the outer tube are located on the same plane, and the first inner tube and the second inner tube are at the same height.

[0011] Optionally, the first inner tube, the second inner tube and the outer tube are connected by welding or bonding or by bolts.

[0012] Optionally, the distance from the inner end of the first inner tube to the closed end of the outer tube is not less than the diameter of the first inner tube.

[0013] Optionally, the first or second inner tube is externally connected to a high-pressure water gun.

[0014] Optionally, a heating resistance wire is arranged in the lumen of the second or first inner tube.

[0015] The embodiment of the utility model also provides a pavement drainage structure, comprising a water-permeable layer and the pavement drainage pipe as described above, wherein the drainage pipe is arranged on the lower side of the water-permeable layer, and the water-permeable holes of the drainage pipe are arranged upward.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0017] 1. The utility model solves the problem of thick water film and stagnant water on the road surface during rainy days by setting the drainage pipe, which can improve the quality of highway services, reduce traffic accidents during rainy days, protect the life, health and safety of drivers and passengers, and reduce the risk of being sued by highway operators. It is of great significance to improve the happiness of the people.

[0018] 2. The road drainage pipe of the utility model includes an outer pipe and two inner pipes. The upper part of the outer pipe is provided with a water-permeable hole, which can collect rainwater from the permeable road surface into the outer pipe cavity. The elevation of the closed end of the outer pipe is greater than the elevation of the open end, and the rainwater in the cavity is discharged by gravity. Two inner pipes are arranged inside the outer pipe of the drainage pipe. A heating component is arranged in the cavity of one inner pipe, which is used for heating in rainy and snowy weather in winter to prevent ice from blocking the inner cavity of the outer pipe; the other inner pipe is connected to high-pressure water, and the high-pressure water flow provided by the high-pressure water flushes out the silt or debris. Moreover, when the heating component of the first inner pipe melts and loosens the ice in the cavity, the high-pressure water of the second inner pipe flushes out the ice chips, which can speed up the ice clearing efficiency and save the electric energy of the heating component.

[0019] Additional advantages of the present invention will be given in the following description, and some will become apparent from the following description or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 It is an enlarged schematic diagram of a drainage pipe provided by an embodiment of the utility model;

[0022] Figure 2 It is an overall schematic diagram of the drainage pipe provided by the embodiment of the utility model;

[0023] In the figure: 1, outer tube; 2, water permeable hole; 3, closed end; 4, first inner tube; 5, second inner tube;

[0024] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] The permeable layer of the highway pavement, including the permeable surface layer and the permeable granular layer: is the road surface layer, mainly used to improve the drainage performance of the road surface and prevent water damage. This permeable layer allows rainwater and other surface water to quickly penetrate into the permeable granular material below or the drainage system, thereby reducing water accumulation and improving road safety.

[0027] Drain pipes play a vital role in drainage systems because they are responsible for directing accumulated water from the road surface to a safe place. Existing drain pipes are usually a simple round pipe. When there is a lot of silt and other debris in the pipe cavity, it will affect the drainage capacity of the drain pipe. In addition, when the temperature is too low in rainy and snowy weather, the water in the pipe cavity will freeze and block the pipe cavity, and will also cause the drain pipe to lose its drainage capacity. Therefore, conventional drain pipes are easily blocked by silt or debris, or freeze at low temperatures, resulting in drainage difficulties, requiring frequent maintenance and cleaning, and increasing the long-term maintenance cost of the system. In order to solve the above technical problems, the utility model proposes a road drainage pipe.

[0028] like Figure 1 , Figure 2As shown, in one embodiment of the utility model, a road drainage pipe is proposed, comprising: an outer pipe 1 and an inner pipe; the outer pipe 1 is arranged on a water-permeable granular layer of a highway pavement, one end of the outer pipe 1 is a closed end 3, and the other end is an open end, the closed end 3 is located inside the highway, and the closed end 3 is higher than the open end, and a water-permeable hole 2 is arranged on the radial upper pipe wall of the outer pipe 1; the inner pipe is arranged in the tube cavity of the outer pipe 1, the inner pipe comprises a first inner pipe 4 and a second inner pipe 5, both ends of the first inner pipe 4 and the second inner pipe 5 are open, and there is a set distance between the inner end of the first inner pipe 4 and the closed end 3 of the outer pipe 1, the outer end of the first inner pipe 4 can be externally connected to high-pressure water for flushing the tube cavity of the outer pipe 1, and a heating component is arranged in the tube cavity of the second inner pipe 5.

[0029] The pavement drainage pipe comprises an outer pipe 1 and two inner pipes. The outer pipe 1 is applied to the inside of the permeable pavement. The elevation of the closed end 3 is greater than that of the open end. Rainwater in the pipe cavity is discharged by gravity. The upper part of the pipe wall of the outer pipe 1 is provided with a permeable hole 2, which can collect rainwater from the permeable pavement into the pipe cavity of the outer pipe 1, and the lower part of the pipe wall of the outer pipe 1 diverts the rainwater out of the pipe cavity.

[0030] Two inner tubes are arranged inside the outer tube 1 of the drainage pipe. A heating component is arranged in the tube cavity of one inner tube for heating and antifreezing in rainy and snowy weather in winter; the other inner tube can be connected to high-pressure water to clear silt through the high-pressure water flow provided by the high-pressure water, thereby solving the problem of thick water film and stagnant water on the road surface in rainy days, improving the quality of highway services, reducing traffic accidents in rainy days, protecting the lives, health and safety of drivers and passengers, and reducing the risk of highway operators being sued. It is of great significance to improve the happiness of the people.

[0031] The wall of the outer tube 1 is divided into an upper tube wall and a lower tube wall along a horizontal line passing through the center. The water-permeable holes 2 are arranged on the upper tube wall and distributed along the axial direction of the outer tube 1 .

[0032] like Figure 1 As shown, the outer tube 1 is a hollow cylinder with one end open and the other end closed. It is divided into upper and lower parts along the horizontal plane passing through the central axis of the cylinder. The upper tube wall is provided with densely distributed water-permeable holes 2, and the inner wall of the lower tube is uniform and smooth. The circular water-permeable holes 2 on the upper tube wall of the outer tube 1 are used to collect rainwater, and the lower tube wall is not provided with water-permeable holes 2, which is used to divert rainwater.

[0033] Two inner tubes are arranged in the lumen of the outer tube 1. The inner tube is a hollow cylinder with openings at both ends. The axes of the first inner tube 4 and the second inner tube 5 are arranged parallel to the axis of the outer tube 1. The outer wall of the first inner tube 4 and the outer wall of the second inner tube 5 are in contact with the inner wall of the inner tube, and the axes of the first inner tube 4 and the second inner tube 5 are located on the same plane as the axis of the outer tube 1. At the same time, the first inner tube 4 and the second inner tube 5 are at the same height. By limiting the positions of the inner tube and the outer tube 1, the inner tubes are placed on the inner wall where the upper half of the tube wall and the lower half of the tube wall of the outer tube 1 meet, that is, Figure 1 As shown, the two inner tubes are located on both sides of the middle of the outer tube 1. This arrangement is convenient for installation and fixation, and will not block the water permeable hole 2. At the same time, a gap is left between the two inner tubes to reduce the impact on the water flow in the lumen of the outer tube 1.

[0034] The inner tube is flush with the open end of the outer tube 1, and the inner tube is fixed to the inner wall of the outer tube 1 by welding, bonding, bolts, etc. Among them, the distance from the inner end of the first inner tube 4 to the closed end 3 of the outer tube 1 is the diameter of the first inner tube 4, that is, the first inner tube 4 and the closed end 3 of the outer tube 1 leave a gap of not less than 1 times the diameter of the first inner tube 4. By setting this distance, it is used for buffering (reverse flushing) of high-pressure water flow during dredging, and the dredging is ensured to be thorough.

[0035] The first inner tube 4 can be connected to a high-pressure water gun and a high-pressure water pump to introduce high-pressure water flow into the closed end 3 of the outer tube 1. When the high-pressure water flow flows from the closed end 3 to the open end, when the lumen of the outer tube 1 is blocked, the high-pressure water flow provided by the high-pressure water gun is used to clear the silt, thereby realizing the lumen clearing function. The water pressure can be adjusted according to the specific situation, as long as the silt and debris can be flushed out.

[0036] A heating resistor wire is arranged in the lumen of the second inner tube 5, specifically a waterproof low-voltage heating resistor wire, which is powered on to generate heat in rainy and snowy weather to ensure that the lumen temperature of the outer tube 1 is above zero degrees to avoid ice blockage or to generate heat in rainy and snowy weather in winter to melt ice in the lumen of the outer tube 1.

[0037] The heating resistance wire can be a conventional nickel-chromium heating wire or an iron-chromium-aluminum alloy heating wire, or a carbon fiber heating element.

[0038] Two inner tubes are arranged inside the outer tube 1 of the drainage pipe in this embodiment. A waterproof low-voltage heating resistor wire is placed in one inner tube for heating and anti-freezing in rainy and snowy weather in winter; the other inner tube can be connected to an external high-pressure water gun to dredge the silt through the high-pressure water flow provided by the high-pressure water gun.

[0039] When the temperature is too low in rainy or snowy weather, the water in the lumen of the outer tube 1 will freeze and block the lumen, causing the outer tube 1 to lose its drainage ability. The waterproof low-voltage heating resistor placed in the second inner tube 5 will heat up after being energized, which can ensure that the lumen of the outer tube 1 will not freeze, thereby ensuring drainage ability.

[0040] When there are a lot of debris such as silt in the lumen of the outer tube 1, it will affect the drainage capacity of the outer tube 1. By connecting a high-pressure water gun to the first inner tube 4, the high-pressure water flow is discharged into the closed end 3 of the outer tube 1, and the silt is discharged when the high-pressure water flow flows from the closed end 3 to the open end.

[0041] Based on the above-mentioned pavement drainage pipe, the embodiment of the utility model also provides a pavement drainage structure, including a permeable layer and a drainage pipe, wherein the drainage pipe is arranged on the lower side of the permeable layer, and the permeable hole 2 of the drainage pipe is arranged upward. By placing the drainage pipe in the permeable layer of the highway pavement, drainage is carried out by gravity. When used, the elevation of the closed end 3 is greater than the open end, the upper half of the pipe wall faces upward, and the lower half of the pipe wall faces downward. In rainy and snowy weather, the water that infiltrates the permeable pavement and flows downward flows into the lumen of the outer tube 1 through the permeable hole 2; the lower half of the pipe wall guides the water in the lumen by gravity and discharges the rainwater through the open end of the outer tube 1. It can efficiently remove water accumulated on the road surface, and combined with the permeable pavement, it can solve the problem of water accumulated on sections with poor drainage. It is mainly used for the reconstruction of waterlogged sections to reduce road traffic accidents.

[0042] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the protection scope of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the protection scope of the utility model.

Claims

1. A road drainage pipe, characterized in that: Including outer tube; The outer tube is arranged in the water-permeable layer of the road surface, one end of the outer tube is a closed end, and the other end is an open end. The closed end is located inside the road and is higher than the open end. A water-permeable hole is arranged on the radial upper tube wall of the outer tube.

2. The road drainage pipe according to claim 1, characterized in that: The drain pipe also includes an inner tube, which is arranged in the lumen of the outer tube. The inner tube includes a first inner tube and a second inner tube. Both ends of the first inner tube are open, and there is a set distance between the inner end of the first inner tube and the closed end of the outer tube. The outer end of the first inner tube is connected to high-pressure water for flushing the lumen of the outer tube, and a heating component is arranged in the lumen of the second inner tube.

3. The road drainage pipe according to claim 2, characterized in that: The tube wall of the outer tube is divided into an upper tube wall and a lower tube wall along a horizontal line passing through the center, and the water-permeable holes are arranged on the upper tube wall and distributed along the axial direction of the outer tube.

4. The road drainage pipe according to claim 2, characterized in that: The axis of the first inner tube and the axis of the second inner tube are both arranged parallel to the axis of the outer tube.

5. The road drainage pipe according to claim 3, characterized in that: The outer wall of the first inner tube and the outer wall of the second inner tube are both in contact with the inner wall of the inner tube, and the axes of the first inner tube, the second inner tube and the outer tube are located on the same plane, and the first inner tube and the second inner tube are at the same height.

6. The road drainage pipe according to claim 4, characterized in that: The first inner tube, the second inner tube and the outer tube are connected by welding or bonding or by bolts.

7. The road drainage pipe according to claim 2, characterized in that: The distance from the inner end of the first inner tube to the closed end of the outer tube is not less than the diameter of the first inner tube.

8. The road drainage pipe according to claim 6, characterized in that: The first inner tube or the second inner tube is externally connected to a high-pressure water gun.

9. The road drainage pipe according to claim 8, characterized in that: A heating resistance wire is arranged in the lumen of the second inner tube or the first inner tube.

10. A road surface drainage structure, characterized in that: It comprises a water-permeable layer and the road surface drainage pipe as claimed in any one of claims 1 to 9, wherein the drainage pipe is arranged on the lower side of the water-permeable layer, and the water-permeable holes of the drainage pipe are arranged upward.

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