CN219327158U

CN219327158U - Surface water drainage system of mountain substation

Info

Publication number: CN219327158U
Application number: CN202320149948.8U
Authority: CN
Inventors: 郑云; 黄清海; 史学涛; 张朋朋; 羊鹏; 胡坤鹏; 蒋乐; 杨帆
Original assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Current assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-07-11
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a surface water drainage system of a mountain substation, which comprises a main ditch unit and a plurality of branch ditch units, wherein the main ditch unit is communicated with the branch ditch units; the main ditch unit comprises a main ditch and a plurality of main ditch pipelines embedded in the main ditch, and the branch ditch unit comprises a branch ditch and a plurality of branch ditch pipelines embedded in the branch ditch; based on the original natural ground, the construction method has the characteristics of small construction work amount, simple structure, easy implementation and reliable use.

Description

Surface water drainage system of mountain substation

Technical Field

The utility model belongs to the technical field of civil engineering design, and particularly relates to a surface water drainage system of a mountain substation.

Background

The power industry is taken as a basic energy industry and is a foundation for ensuring normal operation and development of various industries, along with the recent rapid expansion of the power industry, the power grid is taken as a foundation of the whole power system, the construction and planning of the power grid relate to the sustainable long-term development of the health of the power industry, the economic and stable operation of the power grid in the whole area are directly influenced, and meanwhile, along with the acceleration of urban construction, more restrictions are added to the planning of the power grid line. In recent years, most of domestic substations are built on mountains or hills due to the rise of ground photovoltaic power stations and wind power plants. After the site is leveled, the original natural drainage system is damaged, the naturally-formed surface water cannot be gathered into the original low recess, and great hidden danger exists on the site and the side slope of the substation site. The existing drainage ditch design generally needs to be concreted, the required engineering amount is large, and the natural ground can be greatly damaged.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide a surface water drainage system of a mountain substation, which effectively reduces the engineering amount, shortens the construction period and reduces the damage to the natural ground.

The technical scheme adopted by the utility model is as follows:

a surface water drainage system of a mountain substation comprises a main ditch unit and a plurality of branch ditch units, wherein the main ditch unit is communicated with the branch ditch units; the main ditch unit comprises a main ditch and a plurality of main ditch pipelines buried in the main ditch, and the branch ditch unit comprises a branch ditch and a plurality of branch ditch pipelines buried in the branch ditch. The system is characterized in that a main ditch unit and a branch ditch unit are arranged on the original natural ground, wherein the main ditch unit is arranged on the ground with more water collecting quantity, the branch ditch unit is arranged on the ground with less water collecting quantity, surface water and rainwater are collected through the main ditch and the branch ditches and introduced into a main ditch pipeline and a branch ditch pipeline, the surface water and the rainwater collected by the branch ditch unit are converged into the main ditch unit through the branch ditch pipeline, and the surface water is uniformly introduced into a power station flood interception ditch through the main ditch pipeline in the main ditch unit.

Further, the clay sealing layers are paved at the bottoms of the main ditch and the branch ditches, when the main ditch and the branch ditches are paved, if a pond is encountered, the clay sealing layers are paved on the natural topography surface layer of the pond to be paved on the main ditch and the branch ditches, and the seepage prevention protection operation is performed by paving the clay sealing layers.

Furthermore, high-strength geotextiles are laid on the surfaces of the main ditches and the branch ditches. The high-strength geotextile adopts plastic fibers, has enough ductility in dry and wet states, can effectively cover the main ditch and the branch ditches, has good air permeability and water permeability, effectively intercepts fine sand, small stones, soil particles and the like in water flow, and ensures the stability of system engineering.

Further, the high-strength geotechnical cloth is laid in two sections, the overlapping part between the high-strength geotechnical cloth laid in one section and the high-strength geotechnical cloth laid in the other section is larger than 30cm, and the mode of covering at two ends is adopted to spread the concentrated stress of water flow scouring caused by rainfall, so that the damage to the external force of the main ditch and the branch ditch is prevented, and the internal structure of the drainage system is protected.

Furthermore, the main ditch and the branch ditches are paved by adopting non-graded broken stone or pebble, the permeable layer is formed by the broken stone or pebble, and surface water and rainwater permeate into the drainage unit through gaps among the broken stone or pebble.

Furthermore, the cross section of the main ditch is rectangular, the width is 2.00m, the height is 1.50m, the cross section of the main ditch adopts a stable rectangle, and the dimension design can effectively absorb surface water and rainwater and ensure the stability of the whole structure.

Further, the cross section of the branch ditch is rectangular, the width is 1.20m, the height is 1.20m, the branch ditch is designed to be matched with the main ditch, the collection range of surface water and rainwater is effectively enlarged, and the branch ditch is collected to the surface water and is converged into the main ditch for discharging.

Further, the main ditch pipeline and the branch ditch pipeline adopt plastic blind pipes with the inner diameter of 100mm, and the plastic blind pipes have extremely high surface water seepage capability and internal water seepage capability, have extremely good pressure resistance capability and deformation adaptation capability, have extremely good chemical inertness, can guarantee longer service life, and have the characteristics of light weight, easy cutting and convenient construction and installation.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the main ditch unit and the branch ditch unit are adopted to effectively collect and discharge surface water and rainwater, so that the uneven settlement of a station site is reduced, and the safety and stability of a side slope are ensured.

2. The utility model is based on the original natural ground, and has the characteristics of small construction engineering quantity, simple structure, easy implementation and reliable use.

Drawings

FIG. 1 is a top plan view of an engineering implementation of the present utility model.

FIG. 2 is a schematic cross-sectional view of a main trench unit of the present utility model.

FIG. 3 is a schematic cross-sectional view of a gutter unit according to the present utility model.

In the figure: 1. main ditch, 2, branch ditch, 3, main ditch pipeline, 4, branch ditch pipeline, 5, high strength geotechnical cloth, 6, main ditch unit, 7, branch ditch unit.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

As shown in fig. 1, 2 and 3, the surface water drainage system of the mountain substation comprises a main ditch unit 6 and a plurality of branch ditch units 7, wherein the main ditch unit 6 is communicated with the branch ditch units 7; the length of the main ditch unit 6 is 328m, and the length of the branch ditch unit is 360.5m. The main ditch unit 6 comprises a main ditch 1 and a plurality of main ditch pipelines 3 buried in the main ditch 1, and the branch ditch unit 7 comprises a branch ditch 2 and a plurality of branch ditch pipelines 4 buried in the branch ditch 2. In a specific implementation, the number of main channel pipelines 3 is five, and the number of branch channel pipelines is three. The main ditch pipelines 3 are arranged in parallel and are arranged in the main ditch 1 at equal intervals, the branch ditch pipelines 4 are arranged in the branch ditch 2 in parallel and are arranged in equal intervals, the water outlet horizontal plane of the main ditch pipeline 3 is slightly lower than the water inlet horizontal plane, the water outlet horizontal plane of the branch ditch pipeline 4 facing the main ditch pipeline 3 is slightly lower than the water outlet horizontal plane far away from the main ditch pipeline 3, and the surface water and rainwater can be conveniently collected and flow in the main ditch pipeline 3 and the branch ditch pipeline 4. The water outlet of the main ditch pipeline 3 is arranged in a flood interception ditch of the power station, so that surface water and rainwater can be conveniently discharged out of a power station site.

The clay seal layer has been laid to main ditch 1 and the ditch 2 bottoms, and the clay seal layer generally sets up in the bottom of main ditch 1 and ditch 2 through pond topography, and the clay seal layer generally adopts 500mm thick setting.

High-strength geotextile 5 is laid on the surfaces of the main ditch 1 and the branch ditches 2. The high-strength geotextile 5 is laid in two sections, and the overlapping part between the high-strength geotextile 5 laid in one section and the high-strength geotextile 5 laid in the other section is larger than 30cm. The main ditch 1 and the branch ditches 2 are paved by adopting non-graded broken stones or pebbles. The main channel 1 has a rectangular cross section, a width of 2.00m and a height of 1.50m. The cross section of the branch groove 2 is rectangular, the width is 1.20m, and the height is 1.20m. The main channel pipeline 3 and the branch channel pipeline 4 adopt plastic blind pipes with the inner diameter of 100 mm.

In this example, the particle size of the non-graded crushed stone or pebble is about 6cm. The length of each main ditch unit 6 paved with 1m needs to consume 7.3m of the area of the high-strength geotextile 5 ² The broken stone or pebble consumption is 3.0m ³ The total consumption of the plastic blind pipes is 5m; the length of each main ditch unit 6 paved with 1m needs to consume 7.3m of the area of the high-strength geotextile 5 ² Broken stone or pebble consumption of 1.44m ³ The plastic blind pipes consume a total of 3m. In the concrete engineering implementation, firstly, crushed stone or pebble with the grain size of 6cm is used for filling, and in the main ditch 1 of the main ditch unit 6 as an example, a crushed stone or pebble layer with the thickness of 0.4m is paved in advance, and the crushed stone or pebble layer is continuously filled in a plastic blind pipe to ensure that the thickness of the crushed stone or pebble layer reaches 1.50m, so that fine granular materials such as middle sand, coarse sand and gravel can be filled in the two sides and the upper part of the main ditch to form a back filtering layer. The particle size of broken stone or pebble adopted by the main ditch 1 can also be designed in a layered mode, the particle size from bottom to top is gradually reduced, and the blocking of the plastic blind pipe is prevented while good ground water and rainwater are led. After setting up rubble layer or pebble layer, lay high strength geotechnique's cloth 5 from main ditch 1 side respectively, high strength geotechnique's cloth 5 in both sides forms the overlap portion that is greater than 30cm at main ditch 1 top, forms effective cladding to main ditch 1, guarantees engineering stability. The same construction flow is adopted to construct the branch trench unit 7.

The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model.

Claims

1. The utility model provides a mountain area transformer substation's surface water drainage system which characterized in that: the device comprises a main ditch unit (6) and a plurality of branch ditch units (7), wherein the main ditch unit (6) is communicated with the branch ditch units (7); the main ditch unit (6) comprises a main ditch (1) and a plurality of main ditch pipelines (3) buried in the main ditch (1), and the branch ditch unit (7) comprises a branch ditch (2) and a plurality of branch ditch pipelines (4) buried in the branch ditch (2).

2. A surface water drainage system for mountain substations as claimed in claim 1, wherein: the clay sealing layer is paved at the bottom of the main ditch (1) and the branch ditch (2).

3. A surface water drainage system for mountain substations as claimed in claim 1, wherein: high-strength geotextile (5) is laid on the surfaces of the main ditch (1) and the branch ditches (2).

4. A surface water drainage system for mountain substations as claimed in claim 3, wherein: the high-strength geotextile (5) is laid in two sections, and the overlapping part between the high-strength geotextile (5) laid in one section and the high-strength geotextile (5) laid in the other section is larger than 30cm.

5. A surface water drainage system for mountain substations as claimed in claim 1, wherein: the main ditch (1) and the branch ditches (2) are paved by adopting non-graded broken stones or pebbles.

6. A surface water drainage system for mountain substations as claimed in claim 5, wherein: the section of the main groove (1) is rectangular, the width is 2.00m, and the height is 1.50m.

7. A surface water drainage system for mountain substations as claimed in claim 6, wherein: the cross section of the branch groove (2) is rectangular, the width is 1.20m, and the height is 1.20m.

8. A surface water drainage system for mountain substations as claimed in claim 1, wherein: the main ditch pipeline (3) and the branch ditch pipeline (4) adopt plastic blind pipes with the inner diameter of 100 mm.