Drainage system for fan platform and road slope of mountain wind power plant

By designing a multi-layered, three-dimensional drainage system in mountain wind farms, and utilizing facilities such as retaining walls, drainage ditches, and pipelines, the problem of water erosion on slopes and roads has been solved, improving the stability of slopes and roadbeds and providing safety guarantees for wind farms.

CN224148847UActive Publication Date: 2026-04-21湖南三一智慧新能源设计有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
湖南三一智慧新能源设计有限公司
Filing Date
2025-04-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing drainage systems of mountain wind farms cause large-scale erosion of slopes and roads under heavy rainfall, reducing the shear strength of the slopes, making them prone to instability and affecting the safe operation of the wind farm.

Method used

Design a multi-layered, three-dimensional drainage system, including retaining walls, drainage ditches, and pipes. By setting multiple slope structures, intercepting ditches, and filter screens on slopes and roads, a complete vertical drainage channel is formed to guide and collect rainwater in a coordinated manner, avoiding accumulation and seepage.

Benefits of technology

It significantly improves the stability of slopes and roadbeds, prevents water erosion and washout, and ensures the long-term safe operation of wind farms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of drainage, in particular to a drainage system for a fan platform and a road slope of a mountain wind power plant. The road is connected with a fan platform, an excavation side slope is arranged on the side, close to a mountain, of the road, the excavation side slope is sequentially provided with a plurality of side slope structures from top to bottom in the slope direction of the excavation side slope, and the drainage system comprises a first water retaining ridge arranged on the side, away from the mountain, of the road and arranged in the extending direction of the road; the first drainage ditch is arranged on the side, close to the excavation slope, of the road and used for collecting and conveying water on the excavation slope and the road; the first intercepting ditch is arranged at a riding track between two adjacent side slope structures and is used for collecting water on the side slope structures above the first intercepting ditch; and the drainage pipeline is used for conveying water in the first intercepting ditch to the first drainage ditch. The problems of large-area scouring and water erosion of water flow to the slope surface and the road surface can be effectively solved, the stability of the slope and the roadbed is effectively improved, and a guarantee is provided for long-term stable operation of a mountain wind power plant.
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Description

Technical Field

[0001] This utility model relates to the field of drainage technology, and in particular to a drainage system for wind turbine platforms and road slopes in mountainous wind farms. Background Technology

[0002] Wind power, as a clean energy source, has experienced rapid development in my country. Due to limitations in wind resources, a large number of wind farms are built in mountainous areas. The construction of mountain wind farms requires the excavation of numerous slopes to build wind turbine platforms and construction roads, and the stability of these slopes directly affects the safe operation of the wind farm.

[0003] In mountainous wind farms, due to the significant elevation differences, rainfall erodes the slope surface, and rainwater seeps into the slope, reducing its shear strength. Furthermore, the construction of wind turbine platforms and roads alters the original natural drainage pathways, causing surface water to accumulate at the slopes. During heavy rainfall, large amounts of rainwater can erode and soak the slopes, easily leading to slope instability.

[0004] Looking at existing or under-construction mountain wind farm projects, the drainage methods are relatively simple, typically employing a roadside ditch drainage system along the shoulder of the road excavation slope. Water flows directly erodes the slope surfaces at all levels and converges into the ditch. However, conventional mountain wind farm drainage systems, when facing rainy seasons, steep and long road slopes without paved surfaces, suffer from prolonged erosion of the slope surfaces, leading to a decrease in soil and rock strength. This makes the slopes prone to collapse and instability. Furthermore, if drainage is not timely, surface runoff can form, severely eroding the road surface and creating sediment, causing water erosion and eventually developing into gullies. Initially, this hinders transportation safety and delays construction; in more severe cases, it can even jeopardize wind turbine operation, causing significant losses. Utility Model Content

[0005] This utility model provides a drainage system for wind turbine platforms and road slopes in mountain wind farms, which solves the defects of large-area scouring and water erosion of slopes and roads caused by water flow in the prior art, effectively improves the stability of slopes and roadbeds, and provides a guarantee for the long-term stable operation of mountain wind farms.

[0006] This utility model provides a drainage system for a wind turbine platform and road slope in a mountain wind farm. The road connects to the wind turbine platform, and a cut slope is set on the side of the road adjacent to the mountain. Multiple slope structures are set sequentially from top to bottom along the slope direction of the cut slope. The drainage system includes: a first water-retaining sill, set on the side of the road away from the mountain, and set along the extension direction of the road; a first drainage ditch, set on the side of the road adjacent to the cut slope, for collecting and transporting water from the cut slope and the road; a first intercepting ditch, set at the walkway between two adjacent slope structures, for collecting water from the slope structure above it; and a drainage pipe for transporting water from the first intercepting ditch to the first drainage ditch.

[0007] According to the present invention, a drainage system for wind turbine platforms and road slopes in mountain wind farms is provided. The drainage pipe includes: a first drainage pipe, the two ends of which are respectively connected to two adjacent first intercepting ditches; and a second drainage pipe, one end of which is connected to the bottommost first intercepting ditches, and the other end of which is connected to the first drainage ditch.

[0008] According to the present invention, a drainage system for wind turbine platforms and road slopes in mountain wind farms is provided. The drainage system further includes: a second intercepting ditch, which is set between the excavated slope and the natural slope of the mountain to collect water from the natural slope; wherein, the drainage pipe includes: a third drainage pipe, the two ends of which are respectively connected to the second intercepting ditch and the first intercepting ditch.

[0009] According to the present invention, a drainage system for wind turbine platforms and road slopes in mountain wind farms is provided, wherein the cross-section of the second intercepting ditch is larger than the cross-section of the first intercepting ditch; and / or, the cross-section of the first drainage ditch is larger than the cross-section of the first intercepting ditch.

[0010] According to the present invention, a drainage system for wind turbine platforms and road slopes in mountain wind farms is provided, wherein multiple drainage pipes are arranged at intervals along the extension direction of the road.

[0011] According to the present invention, a drainage system for wind turbine platforms and road slopes in mountain wind farms is provided, wherein drainage pipes are laid within the excavated slope.

[0012] According to the present invention, a drainage system for wind turbine platforms and road slopes in mountain wind farms is provided, wherein a filter screen is provided at the inlet of the drainage pipe.

[0013] According to the present invention, a drainage system for a wind turbine platform and roadside slope in a mountain wind farm is provided. The drainage system further includes: a second water retaining wall, which is arranged around the side of the wind turbine platform away from the mountain; and a second drainage ditch, which is arranged on the side of the wind turbine platform adjacent to the mountain, for collecting and transporting water from the mountain and the wind turbine platform. The second drainage ditch is connected to the first drainage ditch.

[0014] According to the present invention, a drainage system for wind turbine platforms and roadside slopes in mountain wind farms is provided, wherein a second water-retaining sill is connected to a first water-retaining sill.

[0015] According to the present invention, a drainage system for wind turbine platforms and road slopes in mountain wind farms is provided. A fill slope is provided on the side of the road away from the mountain. The drainage system also includes a third drainage ditch, which is located at the bottom of the fill slope and is used to collect and transport water on the fill slope.

[0016] This utility model provides a drainage system for wind turbine platforms and road slopes in mountain wind farms. By employing multiple slope structures arranged sequentially from top to bottom on the excavated slope adjacent to the mountainside, the height of each slope structure is significantly reduced, resulting in a more rational overall stress distribution on the slope. Since the construction of mountain wind farms often requires excavating high slopes, this multi-slope structure arrangement effectively prevents instability risks caused by excessive slope height. Simultaneously, a first water-retaining embankment, located on the side of the road away from the mountainside and extending along the road's direction, effectively blocks and diverts runoff from the road surface, preventing rainwater from overflowing to the outside of the road. A first drainage ditch, located on the side of the road adjacent to the excavated slope, promptly collects and transports rainwater from the excavated slope and road surface, preventing rainwater accumulation and infiltration at the slope-road junction. In particular, a first intercepting ditch located at the walkway between two adjacent slope structures effectively prevents continuous rainwater infiltration or concentrated runoff on the slope surface by intercepting and collecting rainwater from the upper slope structure. Furthermore, the drainage pipes connect the first intercepting ditch and the first drainage ditch, forming a complete vertical drainage channel. This ensures effective connection between drainage facilities at all levels, allowing rainwater to be discharged in an orderly manner along the pre-set drainage path. This multi-layered, three-dimensional drainage system fully considers the terrain characteristics and rainfall patterns of mountain wind farms. Through the synergistic effect of various drainage facilities, it effectively solves the problems of large-area scouring and water erosion of slopes and roads in existing technologies, significantly improving the stability of slopes and roadbeds, and providing a reliable guarantee for the long-term safe operation of mountain wind farms. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of the drainage system for wind turbine platforms and road slopes in mountain wind farms provided by this utility model;

[0019] Figure 2 This is a structural schematic diagram of the drainage system for wind turbine platforms and road slopes in mountain wind farms provided by this utility model from another angle.

[0020] Figure 3 This is a schematic diagram of the structure of the drainage pipe connected to the first intercepting ditch provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the filter screen provided by this utility model;

[0022] Figure label:

[0023] 1: Road; 2: Wind turbine platform; 3: Excavation slope; 31: Slope structure; 4: First retaining wall; 5: First drainage ditch; 6: First intercepting ditch; 7: Drainage pipe; 71: First drainage pipe; 72: Second drainage pipe; 73: Third drainage pipe; 74: Filter screen; 8: Second intercepting ditch; 9: Second retaining wall; 10: Second drainage ditch; 11: Fill slope; 12: Third drainage ditch. Detailed Implementation

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

[0025] The following is combined with Figures 1 to 4 This invention describes a drainage system for a wind turbine platform and road slope in a mountain wind farm. Road 1 connects to the wind turbine platform 2. A cut slope 3 is provided on the side of road 1 adjacent to the mountain. Multiple slope structures 31 are sequentially arranged from top to bottom along the slope of the cut slope 3. The drainage system includes: a first retaining wall 4, a first drainage ditch 5, a first intercepting ditch 6, and a drainage pipe 7, wherein:

[0026] The first water-retaining sill 4 is located on the side of the road 1 away from the mountain, and the first water-retaining sill 4 is set along the extension direction of the road 1.

[0027] The first drainage ditch 5 is located on one side of the excavated slope 3 adjacent to the road 1, and is used to collect and transport water from the excavated slope and the road 1. Specifically, the cross-section of the first drainage ditch 5 can be trapezoidal, rectangular, etc.

[0028] The first intercepting ditch 6 is located at the walkway between two adjacent slope structures 31 to collect water from the slope structure 31 above it. Specifically, the cross-section of the first intercepting ditch 6 can be trapezoidal, rectangular, etc.

[0029] The drainage pipe 7 is used to transport water from the first intercepting ditch 6 to the first drainage ditch 5.

[0030] In this invention, by sequentially installing multiple slope structures 31 from top to bottom on the excavated slope 3 adjacent to the mountain side of road 1, the height of each slope structure 31 is significantly reduced, resulting in a more rational overall stress distribution on the slope. Since the construction of mountain wind farms often requires excavating high slopes, this arrangement of multiple slope structures 31 effectively prevents the risk of instability caused by excessive slope height. Simultaneously, the first water-retaining embankment 4, located on the side of road 1 away from the mountain, extends along the direction of road 1 and can promptly block and divert runoff from the surface of road 1, preventing rainwater from overflowing to the outside of road 1. The first drainage ditch 5, located on the side of road 1 adjacent to the excavated slope 3, can promptly collect and transport rainwater from the excavated slope 3 and the surface of road 1, avoiding the accumulation and infiltration of rainwater at the connection between the slope and road 1. In particular, the first intercepting ditch 6, located at the ramp between two adjacent slope structures 31, effectively prevents continuous infiltration of rainwater or the formation of concentrated runoff on the slope surface by intercepting and collecting rainwater from the upper slope structure 31. Furthermore, the installation of drainage pipe 7 connects the first intercepting ditch 6 with the first drainage ditch 5, forming a complete vertical drainage channel. This ensures effective connection between drainage facilities at all levels, allowing rainwater to be discharged in an orderly manner along the pre-set drainage path. This multi-layered, three-dimensional drainage system fully considers the terrain characteristics and rainfall patterns of mountain wind farms. Through the synergistic effect of various drainage facilities, it effectively solves the problem of large-area scouring and water erosion of slopes and roads in existing technologies, significantly improving the stability of slopes and roadbeds, and providing a reliable guarantee for the long-term safe operation of mountain wind farms.

[0031] In some embodiments, the drainage pipe 7 includes: a first drainage pipe 71, the two ends of which are respectively connected to two adjacent first intercepting ditches 6; and a second drainage pipe 72, one end of which is connected to the bottommost first intercepting ditches 6, and the other end of which is connected to the first drainage ditch 5.

[0032] The specific structure of the drainage pipe 7 is detailed in this embodiment of the utility model. The drainage pipe 7 includes a first drainage pipe 71 and a second drainage pipe 72. The two ends of the first drainage pipe 71 are respectively connected to two adjacent first intercepting ditches 6. This connection method can realize the water volume adjustment between first intercepting ditches 6 at different elevations in practical applications. When encountering local heavy rainfall, the water accumulated in the upper first intercepting ditches 6 can be diverted to the lower first intercepting ditches 6 through the first drainage pipe 71, avoiding the risk of overflow due to insufficient drainage capacity of a single first intercepting ditches 6. One end of the second drainage pipe 72 is connected to the bottommost first intercepting ditches 6, and the other end is connected to the first drainage ditch 5, forming the final outlet channel of the entire drainage system. This hierarchical drainage pipe system 7 not only increases the number of drainage channels, but more importantly, forms a drainage network that can be mutually redundant. In the actual operation of the mountain wind farm, when encountering continuous heavy rainfall, the water volume between the first intercepting ditches 6 can be adjusted through the first drainage pipe 71 and the second drainage pipe 72, effectively preventing the local drainage system from overloading.

[0033] In some embodiments, the drainage system further includes: a second intercepting ditch 8, disposed between the excavated slope 3 and the natural slope of the mountain, for collecting water on the natural slope; wherein, the drainage pipe 7 includes: a third drainage pipe 73, the two ends of the third drainage pipe 73 being connected to the second intercepting ditch 8 and the first intercepting ditch 6 respectively.

[0034] In this invention, a more complete drainage system is formed by adding a second intercepting ditch 8 and a third drainage pipe 73. The second intercepting ditch 8 is located between the cut slope 3 and the natural slope of the mountain to collect water from the natural slope. This arrangement can intercept rainwater before it reaches the cut slope 3, effectively reducing the erosion and infiltration effects of rainwater on the cut slope 3. The two ends of the third drainage pipe 73 are connected to the second intercepting ditch 8 and the first intercepting ditch 6, respectively, constructing an effective discharge channel for upstream water. In actual engineering, when the catchment area of ​​the natural slope of the mountain is large, the installation of the second intercepting ditch 8 can significantly reduce the hydraulic load on the cut slope 3, while the third drainage pipe 73 ensures that the water in the second intercepting ditch 8 can be promptly introduced into the drainage system, preventing water accumulation from harming the cut slope 3.

[0035] Specifically, one end of the third drainage pipe 73 is connected to the second intercepting ditch 8, and the other end is connected to the uppermost first intercepting ditch 6.

[0036] In some embodiments, the cross-section of the second intercepting ditch 8 is larger than the cross-section of the first intercepting ditch 6; and / or, the cross-section of the first drainage ditch 5 is larger than the cross-section of the first intercepting ditch 6.

[0037] In this embodiment of the invention, the hydraulic performance of the drainage system is optimized by specifying that the cross-section of the second intercepting ditch 8 is larger than that of the first intercepting ditch 6, and the cross-section of the first drainage ditch 5 is also larger than that of the first intercepting ditch 6. The design of the second intercepting ditch 8 having a larger cross-section than the first intercepting ditch 6 ensures that it has sufficient capacity to collect water from the natural slope, preventing overflow during heavy rain. The design of the first drainage ditch 5 having a larger cross-section than the first intercepting ditch 6 ensures that it can receive all upstream water. This design concept of gradually increasing cross-section conforms to hydraulic principles; as the catchment area increases, the corresponding cross-section of the drainage facilities also increases. In practical engineering, this design can effectively cope with rainfall of varying intensities, ensuring that the drainage system operates safely.

[0038] In some embodiments, multiple drainage pipes 7 are provided at intervals along the extension direction of the road 1.

[0039] In this embodiment of the invention, multiple drainage pipes 7 are spaced apart along the extension direction of road 1, improving the reliability of the drainage system. The spacing between the multiple drainage pipes 7 disperses the water flow, preventing excessive load on any single pipe. Furthermore, even if one drainage pipe 7 becomes blocked, the others can still maintain normal system operation. A reasonable spacing between the drainage pipes 7 ensures that each pipe efficiently serves its catchment area, avoiding drainage dead zones or localized water accumulation. This multi-pipe parallel design is particularly suitable for mountainous wind farms with high rainfall and complex geological conditions.

[0040] In some embodiments, the drainage pipe 7 is laid within the excavated slope 3.

[0041] In this embodiment of the invention, the drainage pipe 7 is laid within the cut slope 3, improving the safety and durability of the drainage system. Burying the drainage pipe 7 inside the cut slope 3 avoids the risk of damage from exposed pipes and does not affect the appearance of the cut slope 3 or subsequent landscaping. During construction, the burial depth of the drainage pipe 7 can be determined based on the local frost depth, ensuring that the drainage pipe 7 is not affected by frost heave. This design facilitates maintenance in practical engineering and ensures long-term stable operation.

[0042] In some embodiments, a filter screen 74 is provided at the inlet of the drain pipe 7.

[0043] In this invention, the problem of pipe blockage is solved by installing a filter screen 74 at the inlet of the drainage pipe 7. The filter screen 74 can intercept debris such as mud, sand, and fallen leaves, preventing them from entering the drainage pipe 7 and causing blockage. This design greatly reduces the maintenance cost and frequency of the drainage system. In practical applications, the filter screen 74 allows for regular cleaning to be done on the surface without needing to dredge the drainage pipe 7, thus improving maintenance efficiency.

[0044] In some embodiments, the drainage system further includes: a second water-retaining sill 9 surrounding the side of the wind turbine platform 2 away from the mountain; and a second drainage ditch 10 located on the side of the wind turbine platform 2 adjacent to the mountain, for collecting and transporting water from the mountain and the wind turbine platform 2, wherein the second drainage ditch 10 is connected to the first drainage ditch 5.

[0045] In this invention, effective drainage of the wind turbine platform 2 is achieved by adding a second water-retaining sill 9 and a second drainage ditch 10. The second water-retaining sill 9 is located around the side of the wind turbine platform 2 away from the mountain to prevent rainwater from overflowing from the platform surface. The second drainage ditch 10 is located on the side of the wind turbine platform 2 adjacent to the mountain to collect and transport water from the mountain and the wind turbine platform 2. The second drainage ditch 10 is connected to the first drainage ditch 5. This design can effectively protect the wind turbine foundation and extend the service life of the equipment in practical engineering.

[0046] Specifically, the cross-section of the second drainage ditch 10 is larger than the cross-section of the first intercepting ditch 6.

[0047] In some embodiments, the second water-retaining sill 9 is connected to the first water-retaining sill 4.

[0048] In this embodiment of the invention, the second water-retaining sill 9 is connected to the first water-retaining sill 4, forming a complete water-retaining protection system. This connection design ensures that there are no drainage blind spots in the transition area between the road 1 and the wind turbine platform 2, while also enhancing the overall integrity of the water-retaining structure. In practical applications, this design can effectively prevent rainwater from overflowing from the connection between the road 1 and the wind turbine platform 2.

[0049] In some embodiments, a fill slope 11 is provided on the side of the road 1 away from the mountain. The drainage system further includes a third drainage ditch 12, which is located at the bottom of the fill slope 11 and is used to collect and transport water on the fill slope 11.

[0050] In this invention, the drainage system is further improved by adding a third drainage ditch 12. A fill slope 11 is provided on the side of road 1 away from the mountain. The third drainage ditch 12 is located at the bottom of the fill slope 11 to collect and transport water from it. This design is particularly important in practical engineering because the stability of the fill slope 11 is often lower than that of the cut slope 3, requiring more proper drainage protection. At the same time, the third drainage ditch 12 also provides favorable conditions for subsequent slope vegetation restoration.

[0051] Specifically, the cross-section of the third drainage ditch 12 is larger than the cross-section of the first intercepting ditch 6.

[0052] The drainage system for wind turbine platforms and road slopes in mountain wind farms provided in this embodiment of the invention significantly reduces the height of each slope structure 31 by sequentially setting multiple slope structures 31 from top to bottom on the excavated slope 3 on the side of road 1 adjacent to the mountain, making the overall stress distribution of the slope more reasonable. Since the construction of mountain wind farms often requires excavating high slopes, this arrangement of multiple slope structures 31 can effectively prevent the risk of instability caused by excessive slope height. Simultaneously, the first water-retaining embankment 4, located on the side of road 1 away from the mountain, is arranged along the extension direction of road 1, effectively blocking and diverting runoff from the surface of road 1, preventing rainwater from overflowing to the outside of road 1. The first drainage ditch 5, located on the side of road 1 adjacent to the excavated slope 3, can promptly collect and transport rainwater from the excavated slope 3 and the surface of road 1, avoiding the accumulation and infiltration of rainwater at the connection between the slope and road 1. In particular, the first intercepting ditch 6, located at the walkway between two adjacent slope structures 31, effectively prevents continuous rainwater infiltration or concentrated runoff on the slope by intercepting and collecting rainwater from the upper slope structure 31. Furthermore, the drainage pipe 7 connects the first intercepting ditch 6 with the first drainage ditch 5, forming a complete vertical drainage channel. This ensures effective connection between drainage facilities at all levels, allowing rainwater to be discharged in an orderly manner along the pre-set drainage path. This multi-layered, three-dimensional drainage system fully considers the terrain characteristics and rainfall patterns of mountain wind farms. Through the synergistic effect of various drainage facilities, it effectively solves the problems of large-area scouring and water erosion of slope surfaces and roads in existing technologies, significantly improving the stability of slopes and roadbeds, and providing a reliable guarantee for the long-term safe operation of mountain wind farms.

[0053] The above analysis shows that the various technical features of this drainage system work together to form a complete drainage and protection system. The rational arrangement of components such as the first retaining wall 4, the first drainage ditch 5, the first intercepting ditch 6, and the drainage pipe 7, along with the supplementary facilities such as the second intercepting ditch 8, the second drainage ditch 10, and the third drainage ditch 12, collectively construct a multi-layered, comprehensive drainage network. This effectively solves various drainage problems in mountain wind farms and protects the safe and stable operation of engineering facilities. The combination of these technical features is not a simple superposition, but rather produces a synergistic effect, significantly improving the overall drainage performance of the system. In practical applications, this system is particularly suitable for mountain wind farm projects with high rainfall and complex terrain.

[0054] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drainage system for a wind turbine platform and a road side slope in mountainous area, the road (1) connecting the wind turbine platform (2), the road (1) being provided with an excavated side slope (3) on one side adjacent to a mountain, characterized in that, The excavated slope (3) is provided with multiple slope structures (31) arranged sequentially from top to bottom along its own slope direction, and the drainage system includes: The first water-retaining sill (4) is set on the side of the road (1) away from the mountain, and the first water-retaining sill (4) is set along the extension direction of the road (1); The first drainage ditch (5) is located on the side of the road (1) adjacent to the cut slope (3) for collecting and transporting water from the cut slope (3) and the road (1); The first intercepting ditch (6) is set at the ramp between two adjacent slope structures (31) to collect water from the slope structure (31) above it; Drainage pipe (7) is used to transport water from the first intercepting ditch (6) to the first drainage ditch (5).

2. The drainage system for the wind turbine platform and road side slope of mountain wind farm according to claim 1, characterized in that, The drainage pipe (7) includes: The first drainage pipe (71) is connected to two adjacent first intercepting ditches (6) at both ends. The second drainage pipe (72) is connected at one end to the bottom first intercepting ditch (6) and at the other end to the first drainage ditch (5).

3. The drainage system for the wind turbine platform and road side slope of mountainous wind farm according to claim 1, characterized in that, The drainage system also includes: The second intercepting ditch (8) is set between the excavated slope (3) and the natural slope of the mountain to collect water from the natural slope. The drainage pipe (7) includes: The third drainage pipe (73) is connected at both ends to the second intercepting ditch (8) and the first intercepting ditch (6).

4. The drainage system for the wind turbine platform and road side slope of mountainous wind farm according to claim 3, characterized in that, The cross-section of the second intercepting ditch (8) is larger than the cross-section of the first intercepting ditch (6); And / or, the cross-section of the first drainage ditch (5) is larger than the cross-section of the first intercepting ditch (6).

5. The drainage system for the wind turbine platform and road side slope of mountainous wind farm according to any one of claims 1-4, characterized in that, The drainage pipes (7) are arranged in multiple intervals along the extension direction of the road (1).

6. The drainage system for wind turbine platform and road side slope of mountainous wind farm according to any one of claims 1-4, characterized in that, The drainage pipe (7) is laid inside the excavated slope (3).

7. The drainage system for wind turbine platforms and road slopes in mountain wind farms according to any one of claims 1-4, characterized in that, The inlet of the drainage pipe (7) is equipped with a filter screen (74).

8. The drainage system for the mountain wind farm wind turbine platform and road side slope according to claim 1, characterized in that, The drainage system also includes: The second water-retaining embankment (9) surrounds the side of the wind turbine platform (2) away from the mountain. The second drainage ditch (10) is located on the side of the wind turbine platform (2) adjacent to the mountain, and is used to collect and transport water from the mountain and the wind turbine platform (2). The second drainage ditch (10) is connected to the first drainage ditch (5).

9. The drainage system for the wind turbine platform and road side slope of mountain wind farm according to claim 8, characterized in that, The second water-blocking sill (9) is connected to the first water-blocking sill (4).

10. The drainage system for the wind turbine platform and road side slope of mountainous wind farm according to claim 1, characterized in that, The road (1) has a fill slope (11) on the side away from the mountain, and the drainage system also includes: The third drainage ditch (12) is located at the bottom of the fill slope (11) and is used to collect and transport water on the fill slope (11).