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Method for restoring water and soil conservation ecology in development and construction project

A technology for construction projects and restoration methods, which is applied in the field of restoration of soil and water conservation ecology in development and construction projects, can solve problems such as soil profile damage, water leakage and fertilizer leakage, difficulty in surviving dry seasons, etc. The effect of organic matter

Active Publication Date: 2014-05-28
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a restoration method for soil and water conservation ecology in development and construction projects to solve the problems of soil profile damage, water leakage and fertilizer leakage in existing development and construction projects, and difficulty in getting through the dry season

Method used

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  • Method for restoring water and soil conservation ecology in development and construction project
  • Method for restoring water and soil conservation ecology in development and construction project
  • Method for restoring water and soil conservation ecology in development and construction project

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1, a method for ecological restoration of water and soil conservation in the spoil field in the hot and dry valley of the Jinsha River.

[0024] (1) Overview of the pilot plot

[0025] The flat waste slag field test area is 950m above sea level, with an area of ​​511m2 and a slag thickness of 50cm. The slag particle size decreases from bottom to top. The surface layer of the slag is covered with soil. At the same time, the drainage system is designed according to the design standards and hydrological results of the spoil yard, and the main drainage ditch is arranged at the upstream confluence position of the spoil yard to remove the upstream catchment of the spoil yard, and branch drainage ditches are arranged in the horse tracks at all levels. The drainage ditch of the spoil yard has a slope of 15° to ensure the safe drainage of the design flood within the small watershed of the spoil yard. The main drainage ditch of the spoil yard adopts brick structure, the ...

Embodiment 2

[0046] Example 2, the modification method of soil and water conservation ecology of embankment slope in dry-hot valley.

[0047] (1) Overview of the pilot plot

[0048] The subgrade slope spoil test area is 955m above sea level, with an area of ​​360m2, slag thickness of 50-200cm, and slag particle size decreasing from bottom to top. At the same time, the drainage system is designed according to the design standards of the spoil yard and the hydrological results, and drainage ditches are arranged at the upstream confluence position of the spoil yard on the subgrade slope to drain the upstream catchment of the spoil yard. The slope of the drainage ditch of the subgrade slope spoil ground is 25° to ensure the safe discharge of design flood within the small watershed of the subgrade slope spoil ground. The main drainage ditch of the spoil ground on the subgrade slope adopts brick structure, and the size of the main drainage ditch of the spoil ground is designed according to the ...

Embodiment 3

[0062] Embodiment 3, the restoration method of the water and soil conservation ecology of the high and steep slope caused by the excavation of earth in the development and construction project.

[0063] In this embodiment, before the treatment of the high and steep slope, the method of Embodiment 2 is used to treat the embankment slope with spoil and dregs, and then the method of Embodiment 1 is used to treat the remaining spoil and dregs.

[0064] The treatment methods for high and steep slopes are as follows:

[0065] (1) Design of experimental plot

[0066] Planting hole nutritional method rocky slope test area is 760m above sea level, the slope faces southeast, and the area is 60m2. The slope is hard and stable, and the soil-rock ratio is about 1:3. The slope is 75°. At the same time, the drainage system is designed according to the design standards of the spoil yard and the hydrological results, and drainage ditches are arranged at the upstream confluence position of t...

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Abstract

A method for restoring water and soil conservation ecology in a development and construction project comprises the step of treatment of spoil and waste slag. Specifically, the spoil and the waste slag are piled, the surface layer of a spoil and waste slag pile body is covered with soil, plants are planted, and water-retaining agents and water-retaining slow release fertilizer are applied. The method for piling the spoil and the waste slag comprises the steps that the grain sizes of the spoil and the waste slag are gradually reduced from bottom to top; the upper surface layer is covered with the soil, wherein the thickness of the soil is determined according to the planted plants, and the soil thickness is 50 cm for arbor and 30 cm for shrubs. According to the method, with respect to ecological restoration in the development and construction project, biological measures are mainly taken, necessary engineering measures are taken as assistance, as a result, ecological restoration in the development and construction project is realized, the construction cost is low, the water-retaining ability of the soil is enhanced, and the ability to adapt to and live through arid seasons of vegetation is improved.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration, and in particular relates to a restoration method for water and soil conservation ecology of development and construction projects. Background technique [0002] Resource development and construction is an important part of national economic development. Areas rich in resources in China are often ecologically fragile areas, especially with severe soil erosion. How to strengthen the soil and water conservation and ecological restoration of development and construction projects is one of the main contents of ecological environment restoration and development in ecologically fragile areas. [0003] In the traditional soil and water conservation technology, biological measures are the main soil and water conservation measures, and strengthening afforestation and sealing are the main contents of biological measures. However, due to the strong disturbance of development and constructio...

Claims

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Application Information

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IPC IPC(8): E02D3/00A01B79/02A01G1/00
Inventor 李占斌李鹏穆军王添
Owner XIAN UNIV OF TECH
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