Novel funnel-shaped side ditch

Abstract

The utility model discloses a novel funnel-shaped side ditch which is arranged on the side of a road subgrade, a gravel cushion layer is laid below the side ditch, the side ditch comprises a rectangular side ditch on the lower portion, a side ditch left inclined wall is arranged on the side, close to the road subgrade, of the rectangular side ditch, and a side ditch right inclined wall is arranged on the side, away from the road subgrade, of the rectangular side ditch. The upper end of the side ditch left inclined wall is flush with the end face of a pavement surface layer laid on the road subgrade, and the upper end of the side ditch right inclined wall is flush with the end face of the crushing and falling table. According to the utility model, the advantages of various side ditch forms can be played, the respective defects can be avoided, the drainage requirement can be ensured, the driving safety can be improved, the automobile can be easily self-rescued and safely separated if the automobile accidentally falls into the side ditch, and meanwhile, the land width cannot be increased too much.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway drainage engineering, and specifically relates to a novel funnel-shaped side ditch. Background Art

[0002] The side ditch is a longitudinal ditch set on both sides of the roadbed to collect and drain the water from the road surface, shoulder and slope. It is an indispensable part of the road drainage system. The side ditch is set in the excavation section of the roadbed and the filling section whose height is less than the side ditch depth. At present, the side ditch forms used in my country's highway projects mainly include: rectangular side ditch, trapezoidal side ditch, shallow dish-shaped side ditch, and triangular side ditch.

[0003] Each type of ditch has its own advantages and disadvantages: the advantage of rectangular ditch is that it is easy to construct, with a small footprint and reduced excavation volume. It is suitable for some areas with limited land use and difficult mountain excavation. The disadvantage is that it is not conducive to driving safety and gives the driver a visual sense of insecurity. Once the car tire falls into the ditch, it is difficult to rescue and get out of trouble by yourself; the advantages of trapezoidal ditch and shallow dish-shaped ditch are conducive to driving safety. It is relatively easy to get out of trouble after the car tire falls into it. It forms an integral part with the road and has a beautiful visual appearance. The disadvantage is that the width of the ditch is too wide, and a large mountain needs to be excavated. Many roads passing through mountainous areas are not suitable; triangular ditch is suitable for rural roads with small traffic volume, and the drainage area is too small to meet the drainage requirements of high-grade roads. Therefore, combining the advantages and disadvantages of various ditch forms, it is necessary to design a new ditch form that can not only ensure drainage requirements, but also improve driving safety. If a car accidentally falls into it, it can easily rescue and get out safely, and at the same time will not increase the land width too much. Utility Model Content

[0004] The utility model aims at the shortcomings of the common side ditch forms at present and provides a novel funnel-shaped side ditch, which can not only give full play to the advantages of various side ditch forms, but also avoid their respective shortcomings.

[0005] The technical solution adopted by the utility model is: a novel funnel-shaped side ditch is arranged at the side of the roadbed, a gravel cushion layer is laid under the side ditch, the side ditch comprises a lower rectangular side ditch, a left ditch inclined wall is arranged on the side close to the roadbed, and a right ditch inclined wall is arranged on the side away from the roadbed, the upper end of the left ditch inclined wall is flush with the end face of the pavement surface layer laid on the roadbed, and the upper end of the right ditch inclined wall is flush with the end face of the debris platform.

[0006] Furthermore, the slope of the left inclined wall of the side ditch is 1:1.5, and the slope of the right inclined wall of the side ditch is 1:1.

[0007] Furthermore, the lateral width of the left inclined wall of the side ditch is 30 cm.

[0008] Furthermore, the side ditch material is cement concrete or mortar-laid flagstones.

[0009] Furthermore, the thickness of the gravel cushion layer is 10 cm.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. With the same water flow area, it occupies a smaller width than the shallow dish-shaped ditch, effectively reducing the amount of excavation and construction difficulty.

[0012] 2. It is safer than rectangular side ditches. Even if a vehicle tire accidentally falls into it, it can get out by itself. On mountain roads with light traffic and sparse population, rescue may take hundreds of kilometers. At this time, being able to get out of trouble by oneself is particularly important.

[0013] 3. More beautiful, softer visually. There will not be the abrupt and drastic feeling that rectangular side gutters bring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] In the figure: 1. pavement surface layer; 2. pavement upper base layer; 3. pavement subbase layer; 4. axle; 5. automobile tire; 6. left sloping wall of ditch; 7. gravel cushion layer; 8. rectangular ditch; 9. right sloping wall of ditch; 10. debris platform; 11. slope. DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the utility model, a new funnel-shaped side ditch of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1 As shown, a new type of funnel-shaped ditch is arranged on the side of the roadbed, a 10 cm thick gravel cushion layer 7 is laid below the ditch, the ditch includes a lower rectangular ditch 8, a left ditch oblique wall 6 is arranged on the side close to the roadbed, and a right ditch oblique wall 9 is arranged on the side away from the roadbed, the roadbed includes a pavement upper base layer 2 and a pavement subbase layer 3, a pavement surface layer 1 is laid above the pavement upper base layer 2, the upper end of the left ditch oblique wall 6 is flush with the end face of the pavement surface layer 1, the right side of the ditch is a debris platform 10 and a slope 11, and the upper end of the right ditch oblique wall 9 is flush with the end face of the debris platform 10.

[0018] In this embodiment, the slope of the left ditch wall 6 is 1:1.5, and the slope of the right ditch wall 9 is 1:1. The lateral width of the left ditch wall 6 is determined according to the drainage requirement, and is generally 30 cm. The wheel 5 is mounted at both ends of the axle 4. When the wheel 5 accidentally deviates from the road and presses on the left ditch wall 6, it will not fall into the ditch, and the steering wheel can be turned to drive out of the ditch. Because of the presence of the lower rectangular ditch 8, the drainage area is guaranteed, and the width of the ditch is also reduced. Visually, it brings a sense of security to the driver, and the appearance is integrated with the road more smoothly. The ditch material can be selected from cement concrete or mortar-laid stone, which is convenient for construction.

[0019] The new funnel-shaped ditch of this embodiment has a shape similar to a trapezoidal ditch or a shallow dish-shaped ditch at the upper part and a rectangular ditch at the lower part. It combines the appearance of the two ditch forms and solves their respective shortcomings. First, calculate the same water flow area and compare the width of various ditches under the same water flow area. Assuming that the wall thickness of the ditch is 20cm, the slope of the shallow dish-shaped ditch is 1:1, the ditch depth is 25cm, and the water flow area is 2900cm², the total width of the rectangular ditch is 93.85cm, the total width of the shallow dish-shaped ditch is 197.57cm, and the total width of the new funnel-shaped ditch is 154.34cm. It can be seen that the new funnel-shaped ditch of this embodiment has a much smaller width than the shallow dish-shaped ditch for the same water flow area. In mountainous areas, a small width can greatly reduce the amount of excavation. Although it is wider than the rectangular ditch, it will give the driver a greater sense of security, especially on roads in remote areas with few people. If the wheel 5 accidentally falls into the ditch, it is difficult to get out by yourself and you can only wait for rescue. The left ditch wall 6 of the new funnel-shaped ditch is a slope of 1:1.5. If the vehicle accidentally drives up, you can turn the steering wheel to drive the vehicle out of the ditch, and it will feel safe visually. It can also be used for passing in special circumstances. The right ditch wall is a slope of 1:1. The slope is not 1:1.5 mainly to reduce the width of the ditch and reduce the amount of excavation.

[0020] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A new type of funnel-shaped ditch, characterized in that: The side ditch is arranged at the side of the roadbed, and a gravel cushion layer (7) is laid below the side ditch. The side ditch includes a rectangular side ditch (8) at the bottom. The rectangular side ditch (8) is provided with a left ditch oblique wall (6) on the side close to the roadbed, and a right ditch oblique wall (9) on the side away from the roadbed. The upper end of the left ditch oblique wall (6) is flush with the end face of the road surface layer (1) laid on the roadbed, and the upper end of the right ditch oblique wall (9) is flush with the end face of the debris platform (10).

2. The novel funnel-shaped side ditch according to claim 1 is characterized in that: The slope of the left sloping wall (6) of the side ditch is 1:1.5, and the slope of the right sloping wall (9) of the side ditch is 1:

1.

3. The novel funnel-shaped ditch according to claim 2 is characterized in that: The lateral width of the left inclined wall (6) of the side ditch is 30 cm.

4. The novel funnel-shaped ditch according to claim 1 is characterized in that: The material of the side ditch is cement concrete or mortar-laid stone.

5. The novel funnel-shaped ditch according to any one of claims 1 to 4, characterized in that: The thickness of the gravel cushion layer (7) is 10 cm.

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