Research on the dam foundation pit hydrogeological problems in Dadu river deep overburden layer area

Western Sichuan is located in the two and three steps of transition zone of our country on the terrain, in the area of Dadu River valley was "V" type, the valley is widely distributed deep overburden layer. The existence of deep overburden layer not only greatly increases the difficulty of...

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Published inIOP conference series. Earth and environmental science Vol. 384; no. 1; pp. 12031 - 12036
Main Authors Zhang, Shishu, Kang, Xiaobing, Xu, Mo, Huang, Runtai, Hu, Jinshan, Li, Qiang, Ruan, Congyan
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2019
Subjects
Geology
Gushing
Hydroelectric power
Hydrogeology
Overburden
Rivers
Transition zone
Valleys
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Summary:Western Sichuan is located in the two and three steps of transition zone of our country on the terrain, in the area of Dadu River valley was "V" type, the valley is widely distributed deep overburden layer. The existence of deep overburden layer not only greatly increases the difficulty of hydropower development in the southwest region, but also gives birth to a series of new scientific problems. This paper analyze the basic feature and formation of deep overburden layer in the Dadu River, and then discuss the may encounter hydrogeological problems with the pit water gushing, piping and flow sand.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/384/1/012031