A New Method of Searching Underground Caverns' Safety Factor

doi:10.1109/CSO.2009.248

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 会议论文

	A New Method of Searching Underground Caverns' Safety Factor
	Jiang, Quan 1; Xiang, Tianbing 1; Su, Guoshao 2
	2009
会议日期	APR 24-26, 2009
会议地点	Sanya, PEOPLES R CHINA
DOI	10.1109/CSO.2009.248
页码	219
英文摘要	In order to evaluate the safety margin of large substructure engineering during excavation and design, a new method to calculate the general safety factor of underground multi-cavern is put forward based on the strength reduction theory. The method consists of three techniques: (1) the connection of the equivalent plastic strain is taken as the critical instability criterion of caverns; (2) The way of loop search of safety factor is carried out by reducing strength parameters of material step by step; (3) The numerical constitutive model is elastic- perfectly plastic model with Mohr-Coulomb yield rule. Application in the Laxiwa hydropower station, the largest underground caverns in Yellow River valley, indicates that the method is very useful for analyzing the general stability of caverns and designing of underground engineering quantitatively.
会议录	INTERNATIONAL JOINT CONFERENCE ON COMPUTATIONAL SCIENCES AND OPTIMIZATION, VOL 1, PROCEEDINGS
会议录出版者	IEEE COMPUTER SOC
会议录出版地	LOS ALAMITOS
语种	英语
WOS研究方向	Computer Science ; Operations Research & Management Science
WOS记录号	WOS:000273548200049
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4533]
专题	岩土力学所知识全产出_会议论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech ; 2.Guangxi Univ, Dept Civil Engn
推荐引用方式 GB/T 7714	Jiang, Quan,Xiang, Tianbing,Su, Guoshao. A New Method of Searching Underground Caverns' Safety Factor[C]. 见:. Sanya, PEOPLES R CHINA. APR 24-26, 2009.