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《Hongshui River》 2009-05
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High Pressure Jet Grouting and Anti-seepage Engineering at Cofferdam of Power House at Taipingjiang Hydropower Station

HUANG Feng-mei(Guangxi Hydroelectric Construction Bureau,Nanning 530001)  
The cofferdam of power house at Taipingjiang Hydropower Station is built on thickly bedded sandy gravel overburden layer mixed with sandy loam and erratic stone that has unfavorable anti-seepage property.Before anti-seepage engineering of the cofferdam,holes are drilled to investigate geologic conditions of anti-seepage axis.Anti seepage is mainly achieved through high pressure jet grouting.As rational construction parameters are defined through test of high pressure jet grouting,the grouting works fast and favorable anti seepage effect is achieved.As a result,the smooth construction of foundation pit of power house is ensured.
【CateGory Index】: TV543
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