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Mechanism and prevention and cure measures of the landslide in the west of Qinghai province

ZHU Fei;PENG Hongming;WANG Zhanwei;JIA Jun;Qinghai Environmental Geology Exploration Bureau,Key Laboratory of Environmental Gedogy of Qinghai Province;Qinghai Geological Surey Instutute;  
The 11# landslide,which lies in bedrock layer landslides group of Xishan Mountain in Longwu town of Qinghai Province,was in creeping deformation and critical state of sliding failure,and it has become a serious threat to safety and property of residents.This paper has explored the mechanism of sliding failure by site investigation and laboratory test,and got the main cause of landslide failure was interaction of the extrinsic factor of water and human engineering and the intrinsic factor of landslide.Meanwhile,by modeling the landslide and considering different working conditions,landslide stability analysis and evaluation can be got.According to the above,comprehensive control scheme was put forward that:cutting the upper part of the slope body,reinforce the loosened section of the front slope body,adopting lattice beam and anchor cable at the middle part of slope body and anti-slide pile at the front.This landslide controlling scheme gets better effect shown by post monitoring.
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