Gully section anti-seepage embankment structure

Abstract

The utility model provides an anti-seepage embankment structure for a gully section, which relates to the technical field of traffic transportation roadbed engineering and comprises an embankment body, a pavement layer is arranged above the embankment body, waterproof layers are arranged on two sides of the embankment body, an embankment drainage layer is arranged below the embankment body, and an anti-seepage layer is arranged below the embankment drainage layer. Two waterproof isolation underground walls are arranged below the embankment body, and civil grids are arranged on the upper side and the lower side of the embankment drainage layer. According to the gully section anti-seepage embankment structure, the waterproof layer, the waterproof isolation wall and other components are arranged, the arranged waterproof layer can prevent rainfall or rainwater from the upstream of a gully from permeating into the embankment body in the flowing direction, and the arranged waterproof isolation underground wall can block rainwater permeating into the underground of the two sides of the embankment; the anti-seepage geomembrane can prevent underground water from seeping into the embankment from the roadbed to cause erosion damage to the embankment, so that anti-seepage protection of the embankment body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation subgrade engineering, in particular to an anti-seepage embankment structure in gully sections. Background Technique

[0002] An embankment is the foundation of a highway project. In recent years, with the continuous development of the economy and society and the rapid extension of China's highway network, there are more and more highway construction projects in complex areas such as mountainous areas. However, due to the limitations of the natural geology and geomorphology conditions in mountainous areas, there are various problems in the construction of many special sections, and the construction in gully sections is one of them.

[0003] The anti-seepage embankment structure in gully sections disclosed in the Chinese patent application publication specification CN210262772U includes an embankment, a culvert and a waterproof composite structure layer arranged on the water-facing side of the culvert. The culvert penetrates through the subgrade below the embankment, the water flow direction of the culvert is consistent with the water flow direction of the gully, and the waterproof composite structure layer is laid on the slope surface of the water-facing side of the culvert and the inner wall of the gully. Through the comprehensive anti-seepage measures on the water-facing side of the culvert by the waterproof composite structure layer, the problem that water infiltrates into the embankment due to excessive water volume scouring the embankment and causing damage to the inside of the embankment is solved. At the same time, the problem that water infiltrates into the embankment due to the cracking of masonry materials for various reasons is solved, the uneven local settlement of the embankment is avoided, the stability of the embankment is ensured, and the service life of the embankment and the culvert is improved.

[0004] This embankment structure mainly conducts waterproofing above the ground, but no relevant waterproof measures are set below the ground. After rainwater infiltrates, there may still be potential safety hazards to the embankment, such as uneven settlement, which endangers the normal operation of the line. Moreover, the concentrated water flow through the culvert drainage increases the impact erosion of the water flow on the ground. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-seepage embankment structure in gully sections to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an anti-seepage embankment structure in gully sections, including an embankment body, a road surface layer is arranged above the embankment body, waterproof layers are arranged on both sides of the embankment body, an embankment drainage layer is arranged below the embankment body, and two vertically parallel waterproof isolation underground walls are arranged below the embankment body;

[0007] The embankment drainage layer includes a metal frame, geogrid is arranged on both the upper and lower sides of the metal frame, an anti-seepage geomembrane covers the bottom surface of the geogrid located below, vegetation layers are arranged on both sides of the embankment body, the vegetation layers cover the outer surface of the waterproof layer, and a drainage side ditch is arranged below the embankment body.

[0008] Preferably, the anti-seepage geomembrane has good tensile strength, high impact strength, anti-seepage, acid and alkali resistance, heat resistance, weather resistance and wear resistance characteristics, and can prevent groundwater seepage and prevent the geogrid and the embankment body from being eroded by groundwater.

[0009] Preferably, a composite geomembrane is laid on the surface layer of the waterproof isolation underground wall, and the composite geomembrane can protect the waterproof isolation underground wall from being eroded by rainwater seeping into the ground, and extends the service life of the waterproof isolation underground wall.

[0010] Preferably, the waterproof layer is filled with reinforced concrete, and a sodium silicate material waterproof coating is arranged on the outer surface of the waterproof layer. By arranging the waterproof layer, rainwater is prevented from seeping into the two slopes of the embankment during rainfall.

[0011] Preferably, drain pipes are arranged at equal distances inside the metal frame, and filter screens are arranged at both ends of each drain pipe. During rainfall, the rainwater is diverted and discharged through the multiple drain pipes, and the rainwater flows into the drainage side ditch through the drain pipes and then is longitudinally discharged outside the roadbed. The filter screen can prevent sundries from entering the drain pipes and prevent the drain pipes from being blocked.

[0012] Preferably, the inside of the metal frame is filled with cement, and marble slabs are covered on both end faces of the metal frame. The metal frame can be any geotechnical material with a accommodating space and a supporting function. For example, a geocell with a certain hole area on the surface can also be used.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] The anti-seepage embankment structure in the gully section can prevent the rainfall or the flowing direction of rainwater from the upstream of the gully from seeping into the inside of the embankment body by arranging components such as a waterproof layer and a waterproof isolation wall, and can block the rainwater seeping into the ground on both sides of the embankment by arranging the waterproof isolation underground wall. The anti-seepage geomembrane can prevent groundwater from seeping into the embankment from the roadbed and causing erosion damage to the embankment, so as to achieve the anti-seepage protection of the embankment body.

[0015] The anti-seepage embankment structure in the gully section can discharge the rainwater from the upstream through the embankment drainage layer, and divert and discharge the rainwater from the upstream through multiple drain pipes, solving the problem that the concentrated discharge of water flow causes greater impact erosion on the ground, and the filter screen can prevent sundries from entering the drain pipes and prevent the drain pipes from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view structural schematic diagram of the present utility model;

[0017] Figure 2This is the overall three-dimensional structure diagram of the present utility model;

[0018] Figure 3 This is the structure diagram of the embankment drainage layer of the present utility model.

[0019] In the figure: 1. Embankment body; 2. Road surface layer; 3. Waterproof layer; 4. Embankment drainage layer; 401. Metal frame; 402. Drain pipe; 403. Filter screen; 5. Waterproof isolation underground wall; 6. Civil engineering grid; 7. Anti-seepage geomembrane; 8. Vegetation layer; 9. Drainage side ditch. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0022] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Please refer to Figures 1-3 , the present utility model provides a technical solution: an anti-seepage embankment structure in a gully area, including an embankment body 1, a road surface layer 2 is arranged above the embankment body 1, waterproof layers 3 are arranged on both sides of the embankment body 1, and an embankment drainage layer 4 is arranged below the embankment body 1. During rainfall, the upstream rainwater will accumulate on one side of the embankment, and the accumulated water is discharged to the downstream in time through the arrangement of the embankment drainage layer 4.

[0024] Below the embankment body 1, there are two waterproof and isolation underground walls 5. Geotextile grids 6 are arranged on both the upper and lower sides of the embankment drainage layer 4. The geotextile grids 6 can greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil mass, enhance the stability of the foundation, and enhance the bearing capacity of the embankment. By setting two layers of geotextile grids 6, the embankment drainage layer 4 can be protected from being damaged by extrusion.

[0025] The bottom surface of the lower geotextile grid 6 is covered with an anti-seepage geomembrane 7. Vegetation layers 8 are arranged on both sides of the embankment body 1. The vegetation layers 8 cover the outer surface of the waterproof layer 3. A drainage side ditch 9 is arranged below the embankment body 1. By planting plants in the vegetation layers 8, the scouring damage of rainwater to both sides of the embankment can be reduced, and the aesthetic and environmental protection requirements of the slope can be ensured.

[0026] Please refer specifically to Figure 1 , the anti-seepage geomembrane 7 has good tensile strength, high impact strength, anti-seepage, acid and alkali resistance, heat resistance, weather resistance, wear resistance and other characteristics, and can prevent groundwater seepage and prevent the geotextile grid 6 and the embankment body 1 from being eroded by groundwater.

[0027] Please refer specifically to Figure 1 and Figure 2 , a composite geomembrane is laid on the surface layer of the waterproof and isolation underground wall 5. The composite geomembrane can protect the waterproof and isolation underground wall 5 from being eroded by rainwater seeping into the ground, and extend the service life of the waterproof and isolation underground wall 5.

[0028] Please refer specifically to Figure 1 , the waterproof layer 3 is filled with reinforced mesh concrete, and a sodium silicate material waterproof coating is arranged on the outer surface of the waterproof layer 3. By setting the waterproof layer 3, rainwater can be prevented from seeping into the two slopes of the embankment during rainfall.

[0029] Please refer specifically to Figure 1 , Figure 2 and Figure 3 , the embankment drainage layer 4 includes a metal frame 401, and drain pipes 402 are arranged at equal distances inside the metal frame 401. Filter meshes 403 are arranged at both ends of each drain pipe 402. During rainfall, the rainwater is diverted and discharged through the multiple drain pipes 402, and the rainwater flows into the drainage side ditch 9 through the drain pipes 402 and then is longitudinally discharged outside the roadbed. The filter meshes 403 can prevent sundries from entering the drain pipes 402 and prevent the drain pipes 402 from being blocked.

[0030] Please refer specifically to Figure 1 , Figure 2 and Figure 3, the interior of the metal frame 401 is filled with cement, and both end faces of the metal frame 401 are covered with marble slabs. The metal frame 401 can be any geotechnical material with an accommodating space and a supporting function. For example, a geocell with a certain hole area on the surface can also be used. The surface of the marble slab is covered with a waterproof coating, which can prevent rainwater from seeping into the interior of the metal frame 401.

[0031] When the utility model is in use: the waterproof layer 3 provided can prevent the rainfall from the upstream of the gully or the flowing direction of rainwater from seeping into the interior of the embankment body 1, and the waterproof isolation underground wall 5 provided can block the rainwater seeping into the ground on both sides of the embankment. The anti-seepage geomembrane 7 can prevent groundwater from seeping into the embankment from the roadbed and causing erosion damage to the embankment, so as to achieve the anti-seepage protection of the embankment body 1. By setting the vegetation layer 8 to plant plants, the scouring damage of rainwater to both sides of the embankment can be reduced, and the need for the slope to be beautiful and environmentally friendly can be ensured. By setting the embankment drainage layer 4, the rainwater from the upstream can be discharged. Through a plurality of drain pipes 402, the rainwater from the upstream can be discharged in a distributed manner, solving the problem that the concentrated discharge of water flow causes greater impact erosion on the ground. The filter screen 403 can prevent sundries from entering the drain pipe 402 and prevent the drain pipe 402 from being blocked.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-seepage embankment structure in a gully section, comprising an embankment body (1), characterized in that: Above the embankment body (1), there is a road surface layer (2). On both sides of the embankment body (1), there are waterproof layers (3). Below the embankment body (1), there is an embankment drainage layer (4). Below the embankment body (1), there are two vertically parallel waterproof and isolation underground walls (5); The embankment drainage layer (4) includes a metal frame (401). On both the upper and lower sides of the metal frame (401), there are geogrid (6). The bottom surface of the geogrid (6) located below is covered with an anti-seepage geomembrane (7). On both sides of the embankment body (1), there is a vegetation layer (8). The vegetation layer (8) covers the outer surface of the waterproof layer (3). Below the embankment body (1), there is a drainage side ditch (9).

2. The anti-seepage embankment structure in a gully area according to claim 1, characterized in that: The surface layer of the waterproof and isolation underground wall (5) is paved with a composite geomembrane.

3. The anti-seepage embankment structure for gully sections according to claim 1, characterized in that: The waterproof layer (3) is filled with reinforced concrete, and a sodium silicate material waterproof coating is provided on the outer surface of the waterproof layer (3).

4. The anti-seepage embankment structure in gully area according to claim 1, characterized in that: Inside the metal frame (401), there are drain pipes (402) distributed at equal intervals. At both ends of each drain pipe (402), there is a filter screen (403).

5. The anti-seepage embankment structure in a gully area according to claim 1, characterized in that: The inside of the metal frame (401) is filled with cement, and both end faces of the metal frame (401) are covered with marble slabs.

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