Drid area grit gravel grit gravel stone river current ecological repairing river course infiltration reduction method

A technology for ecological restoration and stone rivers, which is applied in the direction of river regulation, climate change adaptation, water resource protection, etc., can solve problems such as adverse effects, weak anti-scourability, and damage to the interconnection of water phases, so as to maintain healthy development, Good seepage reduction effect, low cost effect
CN101096844AInactive Publication Date: 2008-01-02北京市水利科学研究所
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
北京市水利科学研究所
Publication Date
2008-01-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a river permeability reducing method in arid area grit stone river ecology restoring project, which comprises the following steps: mixing sodium bentonite and local soil to mixed soil evenly with dry weight ratio 1 : 9; mixing the mixed soil and grit material evenly with dry weight ratio at 4 : 6; forming permeability reducing mixed material; paving the permeability reducing mixed material layer on the compacted river bed; paving local soil permeability reducing layer; vibrating and packing together; back-paving on site ballast on the permeability reducing layer as covering layer. This invention possesses distinctive economic benefit, which can be used to permeability reducing agent project of river, lake and marshland.
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Description

1. Technical field

[0001] The invention relates to a method for reducing seepage of a river course, in particular to a method for reducing seepage of a river course in ecological restoration projects of gravel rivers in arid areas. 2. Background technology

[0002] The sand and gravel rivers involved in the arid areas are generally located in the middle and upper reaches of the watershed, and the river bed is mainly composed of sand, gravel or pebbles, with high water permeability. However, in arid areas, water resources are often scarce, and a small amount of river water is mostly due to the high water permeability of the river bed. It is in a state of subsurface flow. Affected by global climate change and social and economic development, the shortage of water resources has become more serious. The time and space ranges affected by drought have been significantly expanded, and many rivers are often dry.

[0003] Rivers are an important part of the natural ecosystem, an impo...

Claims

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