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《Northwest Hydropower》 2017-04
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Construction Technology of Headrace Tunnel,Binggpou Hydropower Project on the Taolai River

LI Nuo;LI Haipeng;Northwest Engineering Corporation Limited;  
The headrace tunnel of Binggou 1 water-diverted Hydropower Project,which is located on the Taolai River in Jiuquan,Gansu,is excavated in the sandy gravel stratum. In tunneling,the construction technology of excavating with less water( water supply control) explored benefits not only the tunneling progress but also the dust removal,improving the tunneling efficiency and avoiding hole collapse and charging difficulty. Meanwhile,deformation of the surrounding rock is observed. Experience on tunneling in the sandy gravel stratum in Jiuquan is accumulated.
【CateGory Index】: TV554
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