Reservoir dam slope protection structure

Abstract

The utility model provides a reservoir dam slope protection structure which comprises a guide and drainage layer, an anchoring mechanism and a protective surface layer which are sequentially arranged on the surface of a slope body from inside to outside, and the guide and drainage layer comprises a geogrid layer, a graded broken stone layer and a pervious concrete layer which are arranged on one side from inside to outside. A water guide pipe fixed on the surface of the geogrid layer is embedded in the graded broken stone layer, the water guide pipe is spirally arranged, vertical water seepage holes are formed in the side, away from the geogrid layer, of the water guide pipe, the tail end of the water guide pipe is connected with a water collecting well, and an automatic drainage mechanism is arranged in the water collecting well. The anti-sliding stability of the dam is improved, and meanwhile the structural durability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a reservoir dam slope protection structure. Background Technology

[0002] Landslide prevention of reservoir dams is one of the core issues of water conservancy project safety. Traditional landslide prevention structures mostly use concrete slope protection, reinforced soil, or local anchor reinforcement;

[0003] Existing slope protection structures, conventional slope protection structures, usually rely on surface drainage ditches or vertical drainage holes. However, the seepage pressure inside the dam is difficult to release effectively, and the water inside is difficult to drain in a timely and effective manner. This leads to a decrease in shear strength after the soil becomes saturated, which can easily trigger deep landslides. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a reservoir dam slope protection structure that can effectively drain water from the slope in real time, ensuring the stability of the slope protection structure.

[0005] According to an embodiment of this utility model, a reservoir dam slope protection structure includes a drainage layer, an anchoring mechanism, and a protective surface layer arranged sequentially from the inside out on the slope surface. The drainage layer includes a geogrid layer, a graded crushed stone layer, and a permeable concrete layer arranged from the inside out on one side. A water-conducting pipe fixed to the surface of the geogrid layer is embedded in the graded crushed stone layer. The water-conducting pipe is spirally arranged, and a vertical seepage hole is provided on the side of the water-conducting pipe away from the geogrid layer. The end of the water-conducting pipe is connected to a water collection well, and an automatic drainage mechanism is provided in the water collection well.

[0006] Preferably, the anchoring mechanism includes a plurality of fixed anchor rods disposed perpendicular to the slope surface of the slope, and an anchor cable movably connected and tensioned between the fixed anchor rods, wherein the fixed anchor rods penetrate the guide layer and extend into the bedrock for fixation.

[0007] More preferably, the fixed anchor rod is provided with a hinge seat, and a tensioning component is movably connected to the hinge seat, and both ends of the anchor cable are connected to the tensioning component.

[0008] More preferably, the end of the fixed anchor rod is provided with a screw hole, and the end of the hinge seat is provided with an adjusting screw that mates with the screw hole.

[0009] More preferably, the protective surface layer is a high-performance fiber concrete layer with diamond-shaped drainage grooves on its surface, an elastic buffer layer is provided between the protective surface layer and the drainage layer, and the anchoring mechanism is disposed in the elastic buffer layer.

[0010] More preferably, the elastic buffer layer is a rubber basalt fiber composite material layer, and the elastic buffer layer covers and surrounds the anchoring mechanism.

[0011] In a further preferred embodiment, the automatic drainage mechanism includes a water level sensor installed in the water collection well, an automatic drainage pump installed on the drainage pipe of the water collection well, and a microcontroller.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This application features a spiral-structured water guide pipe. The inclined arrangement of the water guide pipe forms a three-dimensional seepage structure, which can effectively improve drainage efficiency. The water flows down the spiral line inside the water guide pipe, which can reduce the risk of clogging. The fixed anchor rods and anchor cables set on the drainage layer are connected by hinged seats to form a spatial anti-slip system, which improves the anti-slip effect. The combination of elastic buffer pad and fiber concrete surface layer ensures service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a reservoir dam slope protection structure according to the present invention.

[0015] Figure 2 This utility model Figure 1 Enlarged schematic diagram of part A in the middle.

[0016] Figure 3 This utility model Figure 1 A magnified schematic diagram of part B in the middle.

[0017] In the above attached figures: 1. Slope; 2. Drainage layer; 201. Geogrid layer; 202. Graded crushed stone layer; 203. Permeable concrete layer; 204. Drainage pipe; 205. Seepage hole; 3. Anchoring mechanism; 301. Fixed anchor rod; 302. Anchor cable; 303. Hinge seat; 304. Tightening assembly; 305. Screw hole; 306. Adjusting screw; 4. Protective surface layer; 401. Drainage channel; 5. Collection well; 6. Automatic drainage mechanism; 7. Elastic buffer layer. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] This utility model provides an embodiment, such as Figure 1As shown, a reservoir dam slope protection structure includes a drainage layer 2, an anchoring mechanism 3, and a protective surface layer 4 arranged sequentially from the inside to the outside on the surface of the slope 1. The drainage layer 2 includes a geogrid layer 201, a graded crushed stone layer 202, and a permeable concrete layer 203 arranged from the inside to the outside. A water-conducting pipe 204 fixed to the surface of the geogrid layer 201 is embedded in the graded crushed stone layer 202. The water-conducting pipe 204 is spirally arranged. A vertical seepage hole 205 is provided on the side of the water-conducting pipe 204 away from the geogrid layer 201. The end of the water-conducting pipe 204 is connected to a water collection well 5. An automatic drainage mechanism 6 is provided in the water collection well 5.

[0020] The spiral-shaped water guide pipe 204 forms a three-dimensional drainage structure within the graded crushed stone layer 202. Seepage water is quickly introduced into the collection well 5 through the water guide pipe 204. Due to the inclined arrangement of the pipe, the water flows downward along the spiral line under the action of gravity. Centrifugal force causes suspended particles and other impurities to settle towards the pipe wall, reducing the possibility of clogging.

[0021] The water level can be monitored in real time through the automatic drainage mechanism 6. When the water level reaches the set threshold, the drainage pump will be automatically started to discharge the water to the drainage system outside the dam.

[0022] Specifically, such as Figure 1 , Figure 3 As shown, the anchoring mechanism 3 includes a plurality of fixed anchor rods 301 that are perpendicular to the slope surface of the slope 1 and anchor cables 302 that are movably connected and tensioned between the fixed anchor rods 301. The fixed anchor rods 301 penetrate the guide layer 2 and extend into the bedrock for fixation to ensure the stability of the fixed anchor rods 301.

[0023] To facilitate adjustment of the tension of the anchor cable 302, in a further embodiment, the fixed anchor rod 301 is provided with a hinge seat 303, and a tensioning component 304 is movably connected to the hinge seat 303. Both ends of the anchor cable 302 are connected to the tensioning component 304. The tensioning component 304 includes a threaded sleeve hinged to the hinge seat 303 and a screw rotatably connected to the anchor cable 302. The screw is threaded to the threaded sleeve.

[0024] In order to facilitate the adjustment of the gap between the anchor cable 302 and the guide layer 2, in a further embodiment, the end of the fixed anchor rod 301 is provided with a screw hole 305, and the end of the hinge seat 303 is provided with an adjusting screw 306 that cooperates with the screw hole 305.

[0025] In order to protect the structure of the drainage layer 2, in a further embodiment, the protective surface layer 4 is a high-performance fiber concrete layer and its surface is provided with diamond-shaped drainage grooves 401. An elastic buffer layer 7 is provided between the protective surface layer 4 and the drainage layer 2, and the anchoring mechanism 3 is arranged in the elastic buffer layer 7.

[0026] First, set up the anchoring mechanism 3 and adjust its tightness, then set up the elastic buffer layer 7;

[0027] Specifically, the elastic buffer layer 7 is a rubber basalt fiber composite material layer, and the elastic buffer layer 7 covers and surrounds the anchoring mechanism 3.

[0028] In order to drain the water collected by the water pipe 204 in a timely manner, in a further embodiment, the automatic drainage mechanism 6 includes a water level sensor installed in the water collection well 5, an automatic drainage pump installed on the drainage pipe of the water collection well 5, and a microcontroller. When the water level in the water collection well 5 reaches the set threshold, the water level sensor is triggered, and the microcontroller receives the signal to start the automatic drainage pump to drain the water in a timely manner.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A reservoir dam slope protection structure, comprising a drainage layer (2), an anchoring mechanism (3), and a protective surface layer (4) arranged in order from inside to outside on the surface of a slope body (1), characterized in that, The drainage layer (2) comprises a geogrid layer (201), a graded gravel layer (202) and a pervious concrete layer (203) arranged from inside to outside, a water guide pipe (204) is embedded in the graded gravel layer (202) and fixed on the surface of the geogrid layer (201), the water guide pipe (204) is spirally arranged, vertical water seepage holes (205) are arranged on the side of the water guide pipe (204) away from the geogrid layer (201), and a water collecting well (5) is connected to the end of the water guide pipe (204), and an automatic drainage mechanism (6) is arranged in the water collecting well (5).

2. A reservoir dam revetment structure according to claim 1, wherein The anchoring mechanism (3) comprises a plurality of fixed anchor rods (301) arranged vertically on the slope surface of the slope body (1), and an anchor cable (302) movably connected and tensioned between the fixed anchor rods (301), the fixed anchor rods (301) penetrating through the drainage layer (2) and fixed into the bedrock.

3. A reservoir dam revetment structure according to claim 2, wherein The fixed anchor rod (301) is provided with a hinged seat (303), the hinged seat (303) is movably connected with a tensioning assembly (304), and the two ends of the anchor cable (302) are connected with the tensioning assembly (304).

4. A reservoir dam revetment structure according to claim 3, wherein The end of the fixed anchor rod (301) is provided with a screw hole (305), and the end of the hinged seat (303) is provided with an adjusting screw (306) matched with the screw hole (305).

5. A dam revetment structure according to any one of claims 1 to 4, wherein The protective surface layer (4) is a high-performance fiber concrete layer, and the surface thereof is provided with rhombic drainage grooves (401), an elastic buffer layer (7) is arranged between the protective surface layer (4) and the drainage layer (2), and the anchoring mechanism (3) is arranged in the elastic buffer layer (7).

6. A reservoir dam revetment structure according to claim 5, wherein The elastic buffer layer (7) is a rubber basalt fiber composite material layer, and covers and surrounds the anchoring mechanism (3).

7. A reservoir dam revetment structure according to claim 5, wherein The automatic drainage mechanism (6) comprises a water level sensor arranged in the water collecting well (5), an automatic drainage pump arranged on a drainage pipe of the water collecting well (5) and a microcontroller.

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