Highway slope cooperative seepage-drainage composite structure

By designing a composite structure for co-seepage and drainage on highway slopes, the problem of rainwater seeping into the soil and rock mass was solved, thereby improving the stability and ecological safety of the slopes.

CN224495336UActive Publication Date: 2026-07-14SHANXI TRAFFIC PLANNING PROSPECTING & DESIGN INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI TRAFFIC PLANNING PROSPECTING & DESIGN INST
Filing Date
2025-06-27
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Rainwater seeps into the soil and rock mass at the top of the highway slope, causing an increase in pore water pressure, weakening the slope's anti-sliding ability, and making it prone to local collapse.

Method used

A composite structure for co-seepage and drainage of highway slopes is designed, including a trapezoidal mounting base, a drainage box, a drainage pipe, and protective components. It collects, filters, and diverts rainwater to prevent it from seeping into the slope. The structure's stability and ecological safety are enhanced by using a geomembrane impermeable layer and a green vegetation layer.

Benefits of technology

It significantly reduces rainwater accumulation, decreases infiltration pressure, improves slope structural stability and safety, and enhances ecological protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical fields of side slope protection, concretely to a highway side slope cooperative seepage and drainage composite structure, including side slope base layer, drainage component no.
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Description

Technical Field

[0001] This utility model relates to the field of slope protection technology, specifically a composite structure for coordinated seepage and drainage of highway slopes. Background Technology

[0002] Highway slopes are artificial slopes (such as road cut slopes and embankment slopes) formed by excavation or filling during highway construction, or natural slopes directly utilized along the highway. Their function is to support the roadbed and pavement structure and ensure the safety of the route. They can be classified into different categories according to their formation, soil type, and slope height. Common problems include collapse, landslide, slope erosion, and weathering. They need to be protected and reinforced by combining engineering protection (such as anti-slide piles and retaining walls) with ecological protection (such as vegetation slope stabilization and topsoil spraying) according to local conditions. At the same time, intelligent monitoring and ecological design should be incorporated to achieve a balance between safety and stability and ecological protection.

[0003] The top of a slope is the source area of ​​surface runoff. During rainfall, rainwater from the road surface and the area around the top of the slope flows downwards due to gravity. The top of the slope becomes the initial node for water flow convergence. Rainwater seeps into the soil and rock mass from the top of the highway slope. The continuous infiltration of rainwater increases the pore water pressure in the slope, weakens the effective stress between particles, further reduces the slope's anti-sliding capacity, and causes erosion of the soil and rock mass, resulting in local collapse of the slope. To address this, we propose a composite structure for highway slopes that integrates infiltration and drainage. Utility Model Content

[0004] The purpose of this utility model is to provide a composite structure for coordinated drainage and seepage on highway slopes, in order to solve the problem mentioned in the background art where rainwater flows downhill due to gravity around the road surface and slope top, making the slope top the initial point of water convergence, and rainwater seeps into the soil and rock mass from the top of the highway slope. To achieve the above objective, this utility model provides the following technical solution: a composite structure for coordinated drainage and seepage on highway slopes, including a slope base layer;

[0005] A drainage component one includes a mounting base one, which is fixedly connected to the top of the slope base layer and is trapezoidal in shape. A drainage box one is fixedly connected to the top of the mounting base one. A plurality of drainage outlets are opened on one side of the drainage box one and are arranged in a linear array. A drainage pipe one is fixedly connected to the interior of each of the drainage outlets. A second mounting base two is fixedly connected to one side of the slope base layer. A second drainage box two is fixedly connected to the top of the second mounting base two. A plurality of connecting grooves are opened on the side of the second drainage box two near the first drainage box one, and the interior of each of the connecting grooves is fixedly connected to the interior of the first drainage pipe.

[0006] The protective component includes a limiting net fixedly connected to the top of the slope base layer. A layer of stones is fixedly connected to the top of the limiting net. During rainfall, rainwater is collected from the top of the slope base layer through an installed drainage box one. The rainwater is then transferred to the interior of drainage box one through a cover plate and an inlet trough. The collected rainwater is then transferred to the interior of drainage box two through a drain outlet, a drain pipe one, and a connecting trough. Drainage box two acts as a secondary transfer hub, which can orderly discharge rainwater to a designated area. This significantly reduces the amount of rainwater accumulated at the top of the slope, effectively blocks the path of rainwater infiltration into the slope, reduces the additional pressure caused by water accumulation, and thus greatly improves the overall stability and safety of the slope structure.

[0007] More preferably, the interior of the first drainage tank and the second drainage tank are provided with protective components. The protective components include two support frames, which are respectively fixedly connected to the interior of the first drainage tank and the second drainage tank. The top of each support frame is fitted with a number of cover plates, which are arranged in a linear array.

[0008] More preferably, the top of each of the cover plates is provided with a number of water inlet grooves and the number of water inlet grooves are arranged in a linear array, and the bottom of each of the two support frames is fixedly connected to a support frame.

[0009] More preferably, the second support frame has several fixed frames inside, and the fixed frames are arranged in a linear array. Each of the fixed frames has a filter screen fixedly connected inside. Each of the fixed frames has two handles fixedly connected to its top. The top of the slope base layer is provided with a protective component, which can filter rainwater and prevent the drainage system from being blocked.

[0010] More preferably, the protective component further includes a soil layer, which is fixedly connected to the top of the stone layer, and a geogrid layer is fixedly connected to the top of the soil layer.

[0011] More preferably, a geomembrane impermeable layer is fixedly connected to the top of the geogrid layer, and a drainage component 2 is provided on the top of the geomembrane impermeable layer. The geogrid layer and the geomembrane impermeable layer can protect against rainwater.

[0012] More preferably, the drainage component two includes a soil layer two, a green plant layer fixedly connected to the top of the soil layer two, and a plurality of drainage pipes two fixedly connected to the top of the green plant layer.

[0013] More preferably, the second drainage pipe is semi-circular in shape, and a guide block is fixedly connected inside each of the second drainage pipes. One side of the guide block is fixedly connected to the other side of the second drainage box. The second drainage pipe collects the slope runoff and guides it in a directional manner through the guide block, so that the rainwater quickly flows into the second drainage box. This effectively reduces the retention time and infiltration amount of rainwater on the slope surface, and comprehensively protects the structural safety and ecological stability of the slope.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, during rainfall, the installed drainage box one collects rainwater from the top of the slope base layer. The rainwater is then transferred to the interior of drainage box one through a cover plate and inlet trough. From there, the collected rainwater is transferred to drainage box two through a drain outlet, drainage pipe one, and connecting trough. Drainage box two acts as a secondary transfer hub, which can orderly discharge rainwater to designated areas. This significantly reduces the amount of rainwater accumulating at the top of the slope, effectively blocks the path of rainwater infiltration into the slope, reduces the additional pressure caused by water accumulation, and thus greatly improves the overall stability and safety of the slope structure.

[0016] In this invention, when using the device, the geomembrane impermeable layer can be installed on top of the geogrid layer, allowing the geogrid layer and the geomembrane impermeable layer to protect against rainwater. Then, the soil layer and the green layer can be laid on top of the geogrid layer and the geomembrane impermeable layer. The green layer, through the soil stabilization effect of its root system, not only beautifies the slope landscape but also significantly improves the slope's resistance to erosion. At the same time, the drainage pipe and the guide block form a slope drainage network. During rainfall, the drainage pipe collects the slope runoff and guides it directionally through the guide block, quickly converging the rainwater into the drainage box, effectively reducing the retention time and infiltration amount of rainwater on the slope surface, and comprehensively ensuring the structural safety and ecological stability of the slope. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 1 ;

[0019] Figure 3 This is a cross-sectional structural diagram of the drainage component of this utility model;

[0020] Figure 4 This utility model Figure 2 Schematic diagram of the structure at point a;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 2 ;

[0022] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point b.

[0023] In the diagram: 1. Slope base layer; 2. Drainage component one; 201. Mounting base one; 202. Drainage box one; 203. Drainage outlet; 204. Drainage pipe one; 205. Mounting base two; 206. Drainage box two; 207. Connecting groove; 3. Protective components; 301. Support frame one; 302. Cover plate; 303. Water inlet trough; 304. Support frame two; 4. Fixing frame; 5. Filter screen; 6. Handle; 7. Protective components; 701. Limiting net; 702. Stone layer; 703. Soil layer one; 704. Geogrid layer; 705. Geomembrane seepage prevention layer; 8. Drainage component two; 801. Soil layer two; 802. Green vegetation layer; 803. Drainage pipe two; 804. Diversion block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 This utility model provides a technical solution: a composite structure for co-seepage and drainage of highway slopes, including a slope base layer 1;

[0026] Drainage component 1 2 includes a mounting base 1 201, which is fixedly connected to the top of the slope base layer 1 and is trapezoidal in shape. A drainage box 1 202 is fixedly connected to the top of the mounting base 1 201. A plurality of drainage outlets 203 are provided on one side of the drainage box 1 202 and are arranged in a linear array. Drainage pipes 1 204 are fixedly connected to the interior of each of the drainage outlets 203. A mounting base 2 205 is fixedly connected to one side of the slope base layer 1. A drainage box 2 206 is fixedly connected to the top of the mounting base 2 205. A plurality of connecting grooves 207 are provided on the side of the drainage box 2 206 near the drainage box 1 202 and are fixedly connected to the interior of each of the connecting grooves 207.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, drainage tank 1 202 and drainage tank 206 are equipped with protective components 3. The protective components 3 include two support frames 301, which are fixedly connected to the interiors of drainage tank 1 202 and drainage tank 206 respectively. Several cover plates 302 are fitted onto the top of each support frame 301 in a linear array. Several water inlet grooves 303 are opened on the top of each cover plate 302 in a linear array. Support frame 2 304 is fixedly connected to the bottom of each support frame 301. The interior of the 4 is fitted with several fixed frames 4 arranged in a linear array. Each of the fixed frames 4 has a filter screen 5 fixedly connected inside. Each of the fixed frames 4 has two handles 6 fixedly connected to its top. The top of the slope base 1 is equipped with a protective component 7. The fixed frames 4 and filter screens 5 can filter impurities and garbage in the rainwater, allowing workers to open the cover 302 and then remove the fixed frames 4 and filter screens 5 from the inside of the drainage tank 1 202 and drainage tank 2 206 through the handles 6, so that the filter screens 5 can be cleaned.

[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the protective component 7 includes a limiting net 701, which is fixedly connected to the top of the slope base layer 1. A stone layer 702 is fixedly connected to the top of the limiting net 701. The protective component 7 also includes a soil layer 703, which is fixedly connected to the top of the stone layer 702. A geogrid layer 704 is fixedly connected to the top of the soil layer 703. A geomembrane impermeable layer 705 is fixedly connected to the top of the geogrid layer 704. A drainage component 8 is installed on the top of the geomembrane impermeable layer 705. The drainage component 8 includes a soil layer 801, a vegetation layer 802 is fixedly connected to the top of the soil layer 801, and several drainage pipes 803 are fixedly connected to the top of the vegetation layer 802. The shape is semi-circular, and several drainage pipes 803 are fixedly connected to the inside of the drainage block 804. One side of the drainage block 804 is fixedly connected to the other side of the drainage box 206. The soil layer 801 and the green layer 802 can be laid on top of the geogrid layer 704 and the geomembrane seepage prevention layer 705, so that the green layer 802 can decorate and reinforce the slope base 1. Then, the drainage pipes 803 and the drainage block 804 can be connected to the drainage box 202 and the drainage box 206. When it rains, the installed drainage pipes 803 and the drainage block 804 can guide the rainwater on the slope, so that the rainwater can be transmitted to the inside of the drainage box 206 through the drainage pipes 803 and the drainage block 804.

[0029] The usage and advantages of this utility model: The working process of this highway slope synergistic drainage composite structure is as follows:

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, when using this device, the worker can first lay the limiting net 701 and the stone layer 702 on the upper end of the slope base 1. The cooperation between the limiting net 701 and the stone layer 702 can stabilize the overall structure of the slope base 1. Then, the soil layer 703 and the geogrid layer 704 can be laid on the upper end of the stone layer 702. The soil layer 703 can fill the gaps in the stone layer 702 into the interior of the limiting net 701, the stone layer 702, and the slope base 1. Then, the geogrid layer 704 can be installed on the soil layer 703. The internal structure allows the slope base layer 1 to form a unified whole with the limiting net 701, stone layer 702, soil layer 703, and geogrid layer 704. Next, the geomembrane impermeable layer 705 can be installed on top of the geogrid layer 704, enabling the geogrid layer 704 and geomembrane impermeable layer 705 to protect against rainwater. Then, the soil layer 801 and the vegetation layer 802 can be laid on top of the geogrid layer 704 and geomembrane impermeable layer 705, allowing the vegetation layer 802 to decorate and reinforce the slope base layer 1. Next, the second drainage pipe 803 and the guide block 804 can be connected to the first drainage box 202 and the second drainage box 206. When it rains, the installed drainage pipe 803 and guide block 804 can guide the rainwater on the slope, allowing the rainwater to be transported to the interior of the second drainage box 206. At the same time, the installed drainage box 202 can collect the rainwater on the top of the slope base 1, allowing the rainwater to be transported to the first drainage box 206 through the cover plate 302 and the inlet trough 303. Inside the drain 202, the collected rainwater can be transferred to the inside of the second drain tank 206 through the drain outlet 203, drain pipe 204, and connecting groove 207, so that the second drain tank 206 can transfer the collected rainwater. At the same time, the fixed frame 4 and filter screen 5 installed can filter impurities and garbage in the rainwater, so that the staff can open the cover 302 and then remove the fixed frame 4 and filter screen 5 from the inside of the first drain tank 202 and the second drain tank 206 through the handle 6, so that the filter screen 5 can be cleaned.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite structure for coordinated drainage and seepage control on highway slopes, characterized in that, Including slope base course (1); Drainage component one (2), the drainage component one (2) includes mounting base one (201), the mounting base one (201) is fixedly connected to the top of the slope base (1) and the shape of the mounting base one (201) is trapezoidal, the top of the mounting base one (201) is fixedly connected to a drainage box one (202), a plurality of drainage outlets (203) are opened on one side of the drainage box one (202) and the plurality of drainage outlets (203) are arranged in a linear array, and the interior of the plurality of drainage outlets (203) is fixedly connected to a drainage pipe one (204), the side of the slope base (1) is fixedly connected to a mounting base two (205), the top of the mounting base two (205) is fixedly connected to a drainage box two (206), the side of the drainage box two (206) near the drainage box one (202) is provided with a plurality of connecting grooves (207) and the interior of the plurality of connecting grooves (207) is fixedly connected to the interior of the drainage pipe one (204); The protective component (7) includes a limiting net (701), which is fixedly connected to the top of the slope base layer (1), and a stone layer (702) is fixedly connected to the top of the limiting net (701).

2. The composite structure for coordinated seepage and drainage on highway slopes according to claim 1, characterized in that: The drainage tank 1 (202) and drainage tank 2 (206) are equipped with protective components (3). The protective components (3) include two support frames (301). The two support frames (301) are fixedly connected to the inside of drainage tank 1 (202) and drainage tank 2 (206) respectively. The top of the support frame (301) is fitted with several cover plates (302) and the several cover plates (302) are arranged in a linear array.

3. The composite structure for coordinated seepage and drainage on highway slopes according to claim 2, characterized in that: The top of each of the cover plates (302) is provided with a plurality of water inlet grooves (303) and the plurality of water inlet grooves (303) are arranged in a linear array. The bottom of each of the two support frames (301) is fixedly connected to a support frame (304).

4. The composite structure for coordinated seepage and drainage on highway slopes according to claim 3, characterized in that: The support frame 2 (304) has several fixed frames (4) inside, and the fixed frames (4) are arranged in a linear array. The fixed frames (4) are respectively fixedly connected to filter screens (5). The top of the fixed frames (4) are respectively fixedly connected to two handles (6). The top of the slope base (1) is provided with a protective component (7).

5. The composite structure for coordinated seepage and drainage on highway slopes according to claim 4, characterized in that: The protective component (7) also includes a soil layer (703), which is fixedly connected to the top of the stone layer (702), and a geogrid layer (704) is fixedly connected to the top of the soil layer (703).

6. The composite structure for coordinated seepage and drainage on highway slopes according to claim 5, characterized in that: The top of the geogrid layer (704) is fixedly connected to the geomembrane anti-seepage layer (705), and the top of the geomembrane anti-seepage layer (705) is provided with a drainage component two (8).

7. The composite structure for coordinated seepage and drainage on highway slopes according to claim 6, characterized in that: The drainage component 2 (8) includes a soil layer 2 (801), a green plant layer (802) is fixedly connected to the top of the soil layer 2 (801), and a plurality of drainage pipes 2 (803) are fixedly connected to the top of the green plant layer (802).

8. The composite structure for coordinated seepage and drainage on highway slopes according to claim 7, characterized in that: The second drain pipe (803) is semi-circular in shape, and a guide block (804) is fixedly connected inside each of the second drain pipes (803). One side of the guide block (804) is fixedly connected to the other side of the second drain box (206).