Vector sum method: A new method for anti-sliding stability analysis

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	Vector sum method: A new method for anti-sliding stability analysis
	Ge, X. R.1,2,3
	2012
会议日期	OCT 17-21, 2011
会议地点	Beijing, PEOPLES R CHINA
关键词	stability analysis rock slopes and foundations numerical modeling
页码	209-214
英文摘要	Anew approach, named theVector Sum Method (VSM), is proposed to analyze the anti-sliding stability problems for slope, dam foundation, etc. It is well known that the strength reduction method is generally applied in this field. But the stress state due to the strength reduction is a virtual state rather than a real one. So the safety factor calculated based on a virtual stress state is not physical sound. Some disadvantages of slope and dam foundation stability analysis methods based on strength reduction principle are discussed. To overcome the limitation of the strength reduction method, the VSM uses the real strength parameters rather than the reduced parameters to compute the stress field. The safety factor is computed based on the real stress state and the vector sum algorithm. Several typical examinations calculated by the vector sum method are presented. The comparison between results shows that theVSM is reasonable. The safety factor is calculated by an explicit formula in 2D case while by iterative computation in 3D case after the stress fields are acquired by finite element method or other methods. The VSM can be well applied to 3D problems for its simplicity and efficiency.
源文献作者	Qian, Q ; Zhou, Y
会议录	HARMONISING ROCK ENGINEERING AND THE ENVIRONMENT
会议录出版者	CRC PRESS-TAYLOR & FRANCIS GROUP
会议录出版地	BOCA RATON
语种	英语
WOS研究方向	Engineering
WOS记录号	WOS:000392521000025
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4644]
专题	岩土力学所知识全产出_会议论文国家重点实验室知识产出_会议论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech ; 2.State Key Lab Geomech & Geotech Engn ; 3.Shanghai Jiao Tong Univ, Inst Geotech Engn
推荐引用方式 GB/T 7714	Ge, X. R.. Vector sum method: A new method for anti-sliding stability analysis[C]. 见:. Beijing, PEOPLES R CHINA. OCT 17-21, 2011.