RESEARCH ON THE EFFECT OF LOADING CONDITIONS ON THE STRENGTH AND DEFORMATION BEHAVIORS OF ROCKS

doi:10.1142/S0217979208050796

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	RESEARCH ON THE EFFECT OF LOADING CONDITIONS ON THE STRENGTH AND DEFORMATION BEHAVIORS OF ROCKS
	Zhou, Hui; Pan, Peng-Zhi; Feng, Xia-Ting
	2008
会议日期	OCT 20-24, 2008
会议地点	Daejeon, SOUTH KOREA
关键词	Elasto-plastic cellular automaton rock failure processes heterogeneity scale effect
期号	9-11
DOI	10.1142/S0217979208050796
页码	5545-5550
英文摘要	The paper aims at a numerical study of strength and deformation behaviors of rocks under different loading conditions in uniaxial compression with an elasto-plastic cellular automaton (EPCA(2D)) code. Two loading conditions, i.e. with and without considering frictions between loading platens and rock specimen's ends, are used in the failure processes of heterogeneous rocks. Rock specimens are assumed to be the same heterogeneity, i.e. the specimens with different sizes have the same probability of containing flaws. Under this condition, it is concluded that the strength and deformation behaviors of rocks are influenced by the heterogeneity a little. The mismatch of elastic properties of the platen and the rock in influencing the stress distribution at the ends of the specimen is the dominant cause for the so-called strength and deformation size effects, which in turn affects the final failure patterns of rocks.
会议录	INTERNATIONAL JOURNAL OF MODERN PHYSICS B
会议录出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
会议录出版地	SINGAPORE
语种	英语
WOS研究方向	Physics
WOS记录号	WOS:000263881000029
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4506]
专题	岩土力学所知识全产出_会议论文岩土力学所知识全产出国家重点实验室知识产出_会议论文
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Zhou, Hui,Pan, Peng-Zhi,Feng, Xia-Ting. RESEARCH ON THE EFFECT OF LOADING CONDITIONS ON THE STRENGTH AND DEFORMATION BEHAVIORS OF ROCKS[C]. 见:. Daejeon, SOUTH KOREA. OCT 20-24, 2008.