Analysis on Deformation Failure Mechanism of Woshaxi Landslide in the Three Gorges Reservoir Area

Abstract:

The Woshaxi landslide is located on the right bank of Qinggan river which is a tributary of the Yangtze River, which continuously and seriously developed after the impoundment of Three Gorges. Surface investigation showed that there were shearing, tensing and crush-pressing fissures. The monitoring data showed that displacement of lower part was bigger than that of upper, and the sliding because of the reservoir water level decline. The landslide mechanism was towing forward and pushing backward, and towing happened mainly in the prophase, while pushing happened mainly in the anaphase. Heavy rainfall and water level drawdown are the main factors of landslide deformation.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 498-501
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.498
• Online since: November 2012
• Authors: Shu Qiang Lu, Qing Lin Yi, Wu Yi
• Keywords: Deformation Failure Mechanism, Landslide, Three Gorges Reservoir Area

References

[1] Yi Wu, Meng Zhangping and Yi Qinglin: Theory and method of landslide stability prediction in the Three Gorges Reservoir area. Science Press, Beijing (2011). (In Chinese)Wuhan Changyi

[2] Huang Bolin, Chen Xiaoting: Deformation failure mechanism of Baijiabao landslide in Xiangxi River Valley. Chinese Journal of Geotechnical Engineering, Vol. 29,(2007), pp.938-942.(In Chinese)

[3] Xu Hua, Li Tianbing: Formation mechanism and stability prediction of Andu landslide in the Three Gorges Reservoir area. Hydrogeology & Engineering Geology, Vol. 32,(2005), pp.28-31.(In Chinese)