A nonlinear catastrophe model of instability of planar-slip slope and chaotic dynamical mechanisms of its evolutionary process

	A nonlinear catastrophe model of instability of planar-slip slope and chaotic dynamical mechanisms of its evolutionary process
	Qin, SQ ; Jiao, JJ ; Wang, SJ ; Long, H
刊名	INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
	2001-11-01
卷号	38 期号:44-45 页码:8093-8109
关键词	catastrophe chaos instability stiffness ratio plane-slip slope
ISSN号	0020-7683
文献子类	Article
英文摘要	This paper presents a nonlinear cusp catastrophe model of landslides and discusses the conditions leading to rapid-moving and slow-moving landslides. It is assumed that the sliding surface of the landslides is planar and is a combination of two media: one is elasto-brittle and the other is strain-softening. It is found that the instability of the slope relies mainly on the ratio of the stiffness of the elasto-brittle medium to the stiffness at the turning point of the constitutive curve of the strain-softening medium. A nonlinear dynamical model, which is derived by analyzing the catastrophe model and considering external environmental factors, is used to reveal the complicated mechanisms of the evolutionary process of the slope under environmental influence and to explore the condition of the occurrence of chaos and the route leading to chaos. The present analysis shows that, when the nonlinear role of the slope itself is equivalent to the environmental response capability, a chaotic phenomenon can occur and the route leading to chaos is realized by bifurcation of period-doublings. (C) 2001 Elsevier Science Ltd. All rights reserved.
WOS关键词	LANDSLIDES
WOS研究方向	Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000171743100020
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/77101]
专题	中国科学院地质与地球物理研究所
通讯作者	Qin, SQ
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Engn Geomech Lab, Beijing 100029, Peoples R China 2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Qin, SQ,Jiao, JJ,Wang, SJ,et al. A nonlinear catastrophe model of instability of planar-slip slope and chaotic dynamical mechanisms of its evolutionary process[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2001,38(44-45):8093-8109.
APA	Qin, SQ,Jiao, JJ,Wang, SJ,&Long, H.(2001).A nonlinear catastrophe model of instability of planar-slip slope and chaotic dynamical mechanisms of its evolutionary process.INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,38(44-45),8093-8109.
MLA	Qin, SQ,et al."A nonlinear catastrophe model of instability of planar-slip slope and chaotic dynamical mechanisms of its evolutionary process".INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 38.44-45(2001):8093-8109.