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Cofferdam project composite geo-membrane and gravel clay combined anti-seepage construction method

A technology of composite geomembrane and construction method, which is applied in infrastructure engineering, protection devices, buildings, etc., can solve rare problems, achieve the effects of extending seepage diameter, saving engineering investment, and easy demolition

Inactive Publication Date: 2017-09-05
XINJIANG NORTH CONSTR GRP CO LTD
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AI Technical Summary

Problems solved by technology

However, using composite geomembrane and gravel clay combination anti-seepage technology to anti-seepage treatment of cofferdam projects in the alpine environment of northern Xinjiang is still rare in China

Method used

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  • Cofferdam project composite geo-membrane and gravel clay combined anti-seepage construction method

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Embodiment Construction

[0023] Toutunhe Reservoir Reinforcement Project (Application Example)

[0024] 1. Project overview:

[0025] The grade of the Toutunhe Reservoir Project is Grade III, and the grade of the main buildings is Grade 3. According to the "Code for Construction Organization Design of Water Conservancy and Hydropower Projects" (SL303-2004), the level of diversion temporary structures is level 5, and the design flood standard of corresponding earth-rock diversion structures is a return period of 10 to 5 years. According to the general construction period plan, the construction period of the water discharge culvert project is from September 23, 2009 to June 4, 2010. The construction of the water discharge culvert and the upstream slope protection and reinforcement of the dam is arranged in the non-flood season, and only the cofferdam needs to be built in the dry season. The schedule of the project is tight, and the accident of the diversion structure has a great impact on the constru...

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Abstract

The invention discloses a cofferdam project composite geo-membrane and gravel clay combined anti-seepage construction method. The method comprises the steps of foundation anti-seepage construction, slope surface anti-seepage construction, horizontal anti-seepage construction, dam abutment anti-seepage construction and the like. The method has the beneficial effects that the cofferdam seepage path is effectively lengthened, the dam seepage line is lowered, and the anti-seepage effect is achieved; and the method is suitable for areas with gravel clay, and anti-seepage treatment is conducted on channels, cofferdams and other water conservancy and hydropower projects.

Description

technical field [0001] The invention relates to a cofferdam engineering anti-seepage construction method, in particular to a cofferdam engineering composite geomembrane and gravel clay combined anti-seepage construction method, belonging to the field of cofferdam engineering anti-seepage construction methods. Background technique [0002] As a new type of building material, composite geomembrane has developed rapidly all over the world since its inception due to its advantages of light weight, simple construction, convenient transportation, low price, abundant material sources, superior anti-seepage performance and mechanical properties. And widely used, and achieved good economic, social and environmental benefits. However, using composite geomembrane and gravel clay combination anti-seepage technology to anti-seepage treatment of cofferdam engineering in the alpine environment of northern Xinjiang is still rare in China. Contents of the invention [0003] In order to so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/02E02D19/04
CPCE02D19/04E02D31/02
Inventor 鲁飞李军杨路刘松马军
Owner XINJIANG NORTH CONSTR GRP CO LTD
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