A second-order ecological slope protection and its construction method

A technology of ecological slope protection and construction method, which is applied in the direction of coastline protection, shore wall, sea area engineering, etc., can solve the problems of unfriendly environment of hard revetment, lack of size design method, difficult transformation, etc., so as to avoid the occurrence of black and odor problems, reduce Project construction budget, the effect of reducing the outbreak of environmental problems

Active Publication Date: 2019-06-04
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the unfriendly environment, difficult reconstruction and lack of size design method of the existing hard revetment, the present invention provides a second-order ecological revetment and its construction method, which perfectly combines the advantages of hardened revetment and ecological revetment , suitable for dry season and wet season, and realizes the combination of man and nature, and provides calculation instructions for slope protection design

Method used

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  • A second-order ecological slope protection and its construction method
  • A second-order ecological slope protection and its construction method
  • A second-order ecological slope protection and its construction method

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Effect test

Embodiment 1

[0043] Such as figure 1 , figure 2 As shown, when reconstructing the original hardened bank slope, firstly determine the primary pollutant in the river basin and the length of the river section that needs hardened bank slope reconstruction. According to the previous survey data, it is determined that the primary pollutant in the area is total nitrogen, and the total daily discharge is 1000g, and the length of the regional governance river section is 1000m. Generally, urban rivers are used as landscape water and irrigation water. It is determined that the water quality of the river should reach Class IV water quality. With reference to the national surface water quality standard GB3838-2002, the limit concentration of total nitrogen in the environment is 1.5mg / L, and the total amount of primary pollutants discharged in the area Divide 1000g by the limit concentration of pollutant total nitrogen in the environment of the national surface water quality standard 1.5mg / L, and the...

Embodiment 2

[0047] In the engineering scheme that needs to be completely demolished and rebuilt, the scheme measures that meet the requirements of the hydraulic maximum cross section are adopted, that is, the minimum surface area of ​​the water section is used to meet the maximum water flow, and the trapezoidal cross section is required to be a semicircle. Cut the polygon, the angle between the upper bottom and the waist is 60°. During the rebuilding process, the primary pollutant and the length of the river section were determined. According to the previous survey data, the primary pollutant in the area was determined to be total phosphorus, the total daily discharge was 300g, and the length of the river channel for regional governance was 1000m. Generally, urban rivers are used as landscape water and irrigation water. It is determined that the water quality of the rivers should reach Class IV water quality. With reference to the national surface water quality standard GB3838-2002, the li...

Embodiment 3

[0054] In the project plan that needs to be completely demolished and rebuilt, according to the topography of the local bank slope, the angle between the upper bottom and the waist is selected to be 70°. During the rebuilding process, the primary pollutant and the length of the river section were determined. According to the previous survey data, the primary pollutant in the area was determined to be total phosphorus, the total daily discharge was 300g, and the length of the river channel for regional governance was 1000m. Generally, urban rivers are used as landscape water and irrigation water. It is determined that the water quality of the rivers should reach Class IV water quality. With reference to the national surface water quality standard GB3838-2002, the limit concentration of total phosphorus in the environment is 0.3mg / L. Divide the amount of 300g by the limit concentration of pollutant total phosphorus in the environment of the national surface water quality standard...

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Abstract

The invention discloses a two-order ecological revetment and a construction method thereof, and belongs to the field of ecological bank slope engineering construction. The revetment comprises an embankment, a first-order hardening engineering revetment, and a second-order soil ecological revetment, and is characterized in that the first-order hardening engineering revetment and the second-order soil ecological revetment are connected through an artificial intermediate transition platform. The advantages of the hardening revetment and the advantages of the ecological revetment are well combined, the two-order ecological revetment is suitable for the dry season and the wet season, and the functions of waterlogging drainage and environment problem prevention can be achieved; human and nature combination is achieved, and the revetment is environmentally friendly and has the advantages of being simple in structure, reasonable in design and easy to construct.

Description

technical field [0001] The invention belongs to the field of ecological bank slope engineering construction, and more specifically relates to a second-order ecological slope protection and a construction method thereof. Background technique [0002] In the traditional urban river improvement projects, the form of hardened slope protection is often used, but the environmental friendliness of hard revetments is increasingly questioned by people. With the enhancement of residents' awareness of ecological and environmental protection, they gradually realized that the hardened revetment has a negative impact on the landscape, environment and ecology, causing the deterioration of the water body and land environment, and even seriously threatening the ecological environment that people rely on for production and life. Because the hardened revetment isolates the water body of the river from the soil on the bank slope, the environmental capacity of the entire river is reduced, and du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B3/06E02B3/12
CPCE02B3/066E02B3/12
Inventor 张毅敏孟瑞华徐斌杨飞朱月明巫丹汪龙眠
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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