Improved expansive soil road pavement structure

Abstract

The utility model discloses an improved expansive soil road pavement structure, which relates to the technical field of roadbed structures and comprises an expansive soil side slope main body, a rainwater collecting and filtering assembly is arranged on a step surface of the expansive soil side slope main body, the lower side of the rainwater collecting and filtering assembly is communicated with a drainage pipe, and the lower side of the drainage pipe is communicated with a water collecting pipe. The side, away from the drainage pipe, of the water collecting pipe penetrates through the expansive soil slope body to be communicated with a drainage ditch, the outer wall of the drainage pipe and the outer wall of the water collecting pipe are each wrapped with a gravel layer, geotechnical cloth is arranged between the gravel layers and the expansive soil slope body, and a detachable protective cover plate is arranged above the drainage ditch. A plurality of sets of strip-shaped through holes are formed in the protective cover plate, waterproof cloth, a gravel layer and a concrete layer are sequentially laid on the slope surface of the expansive soil slope body from inside to outside, the slope surface of the expansive soil slope body is of a step-shaped structure, the drainage pipe is vertically embedded in the expansive soil slope body, and the structure has the advantage of improving stability.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed structures, in particular to an improved expansive soil road pavement structure. Background Art

[0002] At present, most of the improved expansive soil roadbeds on the market use drainage pipes buried in the expansive soil to prevent the capillary water level in the expansive soil from rising. When burying the pipes, it is easy to cause the pipes to deform, and the water pipes cannot be well protected. In addition, the rainwater on the slope cannot be filtered, which causes the drainage pipes to be blocked, which is not conducive to later maintenance and cleaning, thereby reducing the stability of the structure and increasing the maintenance and cleaning costs. This phenomenon has become a problem that needs to be urgently solved by people in this field. Utility Model Content

[0003] The utility model aims to provide an improved expansive soil road pavement structure in view of the existing technical defects, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an improved expansive soil road pavement structure, comprising an expansive soil slope main body, a rainwater collection and filtering assembly is arranged on the step surface of the expansive soil slope main body, a drainage pipe is connected to the lower side of the rainwater collection and filtering assembly, a water collecting pipe is connected to the lower side of the drainage pipe, and a side of the water collecting pipe away from the drainage pipe penetrates the expansive soil slope main body and is connected to a drainage ditch;

[0005] The outer walls of the drainage pipe and the water collecting pipe are both wrapped with a crushed stone layer, and a geotextile is arranged between the crushed stone layer and the main body of the expansive soil slope;

[0006] A detachable protective cover is provided above the drainage ditch, and a plurality of groups of strip-shaped through holes are opened on the protective cover;

[0007] The slope surface of the expansive soil slope body is paved with waterproof cloth, a sand and gravel layer and a concrete layer in sequence from inside to outside.

[0008] The utility model further illustrates that the slope surface of the expansive soil slope body is a step-type structure, the drainage pipe is vertically embedded in the expansive soil slope body, the water collecting pipe is embedded in the expansive soil slope body along the horizontal direction of the expansive soil slope body, and the drainage ditch is located on one side of the bottom of the expansive soil slope body.

[0009] The utility model further illustrates that the rainwater collection and filtering assembly comprises a water inlet, the water inlet is arranged in a funnel shape, a detachable filter plate is arranged on the upper side of the water inlet, and a plurality of groups of first circular through holes are opened on the filter plate;

[0010] A detachable filter cartridge is arranged in the inner cavity of the water inlet, a plurality of groups of second circular through holes are opened on the inner bottom side of the filter cartridge, and a handle is arranged on the upper side of the inner wall of the filter cartridge.

[0011] The utility model further illustrates that the water inlet is located on the step surface of the expansive soil slope body.

[0012] The utility model further illustrates that the diameter of the second circular through hole is smaller than the diameter of the first circular through hole.

[0013] The utility model further illustrates that the water collecting pipe is arranged to be inclined toward one side of the drainage ditch along the horizontal direction.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model, by wrapping the periphery of the drainage pipe and the water collecting pipe with a crushed stone layer respectively, and arranging a geotextile between the crushed stone layer and the main body of the expansive soil slope, reduces the squeezing of the main body of the expansive soil slope on the drainage pipe and the water collecting pipe, and avoids pipe deformation;

[0015] Rainwater is filtered at multiple stages through rainwater collection and filtration components to avoid blockage of drainage pipes and water collection pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rainwater collection and filtration component of the utility model;

[0019] Figure 3 The utility model Figure 1 A schematic diagram of the local enlarged structure of region A;

[0020] Figure 4 The utility model Figure 1 A schematic diagram of the local enlarged structure of region B;

[0021] Figure 5 The utility model Figure 2 A schematic diagram of the local enlarged structure of the C region;

[0022] In the figure: 1. Expansive soil slope body; 2. Rainwater collection and filtration assembly; 201. Water inlet; 202. Filter plate; 203. First circular through hole; 204. Filter cartridge; 205. Second circular through hole; 206. Handle; 3. Drain pipe; 4. Collecting pipe; 5. Gravel layer; 6. Geotextile; 7. Drainage ditch; 8. Protective cover; 9. Strip through hole; 10. Waterproof cloth; 11. Sand and gravel layer; 12. Concrete layer. DETAILED DESCRIPTION

[0023] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: an improved expansive soil road pavement structure, comprising an expansive soil slope main body 1, the slope surface of the expansive soil slope main body 1 is a step-shaped structure, and a rainwater collection and filtering component 2 is arranged on the step surface of the expansive soil slope main body 1;

[0025] The lower side of the rainwater collection and filtration assembly 2 is connected to a drainage pipe 3, and the drainage pipe 3 is vertically embedded in the expansive soil slope body 1;

[0026] The lower side of the drainage pipe 3 is connected to a water collecting pipe 4, and the water collecting pipe 4 is embedded in the expansive soil slope body 1 along the horizontal direction of the expansive soil slope body 1;

[0027] The side of the water collecting pipe 4 away from the drainage pipe 3 penetrates through the main body 1 of the expansive soil slope and is connected to a drainage ditch 7 . The drainage ditch 7 is located on one side of the bottom of the main body 1 of the expansive soil slope.

[0028] When rainwater on the table structure of the expansive soil slope body 1 enters the drain pipe 3, it is filtered by the rainwater collection and filtering component 2 and then discharged through the drain pipe 3 and the water collecting pipe 4 to avoid clogging of the drain pipe 3 and the water collecting pipe 4.

[0029] The outer walls of the drainage pipe 3 and the water collecting pipe 4 are both wrapped with a crushed stone layer 5, and a geotextile 6 is arranged between the crushed stone layer 5 and the expansive soil slope body 1 to reduce the squeezing of the expansive soil slope body 1 on the drainage pipe 3 and the water collecting pipe 4 and avoid deformation of the drainage pipe 3 and the water collecting pipe 4.

[0030] The rainwater collection and filtering assembly 2 includes a water inlet 201, which is located on the step surface of the expansive soil slope body 1. The water inlet 201 is funnel-shaped to facilitate rainwater to quickly flow into the water inlet 201;

[0031] A detachable filter plate 202 is disposed on the upper side of the water inlet 201 . A plurality of groups of first circular through holes 203 are formed on the filter plate 202 , which are used to block mud and stones outside the filter plate 202 and allow rainwater to flow into the water inlet 201 through the first circular through holes 203 .

[0032] A detachable filter cartridge 204 is provided in the inner cavity of the water inlet 201 , and a plurality of groups of second circular through holes 205 are provided on the inner bottom side of the filter cartridge 204 . The diameter of the second circular through holes 205 is smaller than that of the first circular through holes 203 , and is used for secondary filtering of mud and stone after filtering through the filter plate 202 .

[0033] A handle 206 is provided on the upper side of the inner wall of the filter cartridge 204 to facilitate the disassembly and cleaning of the filter cartridge 204 at a later stage.

[0034] A detachable protective cover plate 8 is arranged above the drainage ditch 7 , and a plurality of strip-shaped through holes 9 are opened on the protective cover plate 8 , so that muddy water flowing down from the slope surface of the expansive soil slope body 1 can enter the drainage ditch 7 .

[0035] The water collecting pipe 4 is tilted toward one side of the drainage ditch 7 along the horizontal direction, so that the water in the water collecting pipe 4 can be discharged into the drainage ditch 7.

[0036] The slope surface of the main body 1 of the expansive soil slope is sequentially paved with a waterproof cloth 10, a sand and gravel layer 11 and a concrete layer 12 from the inside to the outside;

[0037] The waterproof cloth 10 is used to prevent rainwater from penetrating into the main body 1 of the expansive soil slope. The gravel layer 11 and the concrete layer 12 are used to enhance the stability of the slope. The waterproof cloth 10, the gravel layer 11 and the concrete layer 12 cooperate with each other to form a step structure to reduce the slope of the main body 1 of the expansive soil slope.

[0038] In this embodiment, when rainwater on the step surface of the main body 1 of the expansive soil slope enters the drain pipe 3, it is filtered for the first time through the first circular through hole 203 on the filter plate 202 to filter out larger mud and rocks, and then filtered for the second time through the second circular through hole 205 on the filter cylinder 204. The filtered rainwater flows into the drain ditch 7 through the drain pipe 3 and the water collecting pipe 4. At the same time, the rainwater flowing down from the slope surface of the main body 1 of the expansive soil slope flows into the drain ditch 7 through the strip through holes 9 on the protective cover plate 8.

[0039] During the later maintenance and cleaning, the filter plate 202 is removed, the filter cartridge 204 is lifted out by holding the handle 206, and the mud and rocks in the filter cartridge 204 are poured out to complete the maintenance and cleaning.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0041] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An improved expansive soil road pavement structure, comprising an expansive soil slope main body (1), characterized in that: A rainwater collection and filtering assembly (2) is arranged on the step surface of the expansive soil slope body (1); the lower side of the rainwater collection and filtering assembly (2) is connected to a drainage pipe (3); the lower side of the drainage pipe (3) is connected to a water collecting pipe (4); the side of the water collecting pipe (4) away from the drainage pipe (3) penetrates the expansive soil slope body (1) and is connected to a drainage ditch (7); The outer walls of the drainage pipe (3) and the water collecting pipe (4) are both wrapped with a crushed stone layer (5), and a geotextile (6) is provided between the crushed stone layer (5) and the main body of the expansive soil slope (1); A detachable protective cover plate (8) is arranged above the drainage ditch (7), and a plurality of groups of strip-shaped through holes (9) are opened on the protective cover plate (8); The slope surface of the expansive soil slope body (1) is sequentially paved with a waterproof cloth (10), a sand and gravel layer (11) and a concrete layer (12) from the inside to the outside.

2. The improved expansive soil road pavement structure according to claim 1, characterized in that: The slope surface of the expansive soil slope body (1) is a step-shaped structure, the drainage pipe (3) is vertically embedded in the expansive soil slope body (1), the water collecting pipe (4) is embedded in the expansive soil slope body (1) along the horizontal direction of the expansive soil slope body (1), and the drainage ditch (7) is located on one side of the bottom of the expansive soil slope body (1).

3. The improved expansive soil road pavement structure according to claim 2, characterized in that: The rainwater collection and filtering assembly (2) comprises a water inlet (201), the water inlet (201) is arranged in a funnel shape, a detachable filter plate (202) is arranged on the upper side of the water inlet (201), and a plurality of groups of first circular through holes (203) are opened on the filter plate (202); A detachable filter cartridge (204) is arranged in the inner cavity of the water inlet (201), a plurality of groups of second circular through holes (205) are provided on the inner bottom side of the filter cartridge (204), and a handle (206) is provided on the upper side of the inner wall of the filter cartridge (204).

4. The improved expansive soil road pavement structure according to claim 3, characterized in that: The water inlet (201) is located on the step surface of the expansive soil slope body (1).

5. The improved expansive soil road pavement structure according to claim 4, characterized in that: The diameter of the second circular through hole (205) is smaller than the diameter of the first circular through hole (203).

6. The improved expansive soil road pavement structure according to claim 5, characterized in that: The water collecting pipe (4) is arranged to be inclined toward one side of the drainage ditch (7) in the horizontal direction.

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