The σ3-effect in the formation of rockslides
(1)LI PEI; (1)LI TIANCHI
通讯作者LI PEI
第一作者单位Institute of Mountain Disasters and Environment, Chinese Academy of Sciences, Chengdu, Sichuan 610015, China
通讯作者单位Institute of Mountain Disasters and Environment, Chinese Academy of Sciences, Chengdu, Sichuan 610015, China
1992
会议名称Erosion, debris flows and environment in mountain regions
卷号209
页码253-261
会议日期1992
会议地点Chengdu, China
会议举办国China
会议录编者/会议主办者D. E. ; Davies, T. R. ; Hasholt, B
出版者IAHS
摘要Slopes composed of sedimentary rocks have different forms and internal structures, which are determined by the properties and occurrence of strata. Vertically-bedded slopes, dip-bedded slopes and horizontally-bedded slopes are common in nature. During and after the process of slope formation, the component forms and relative positions of strata are constantly changing and developing. In one case, deformation develops with time without variation in stress; in another case, there is no alternation in strain, but the stress decreases with time, i.e. relaxation. The former is the so-called rock creep deformation. There are many examples of slope failure due to rock creep deformation. This paper describes yielding break landslides in horizontally-bedded rock slopes caused by the development of rock creep under the long-term effect of the least principal stress (σ3) gradient. Here the σ3-effect is the process of landsliding due to such a mechanical mechanism.
其他摘要Slopes composed of sedimentary rocks have different forms and internal structures, which are determined by the properties and occurrence of strata. Vertically-bedded slopes, dip-bedded slopes and horizontally-bedded slopes are common in nature. During and after the process of slope formation, the component forms and relative positions of strata are constantly changing and developing. In one case, deformation develops with time without variation in stress; in another case, there is no alternation in strain, but the stress decreases with time, i.e. relaxation. The former is the so-called rock creep deformation. There are many examples of slope failure due to rock creep deformation. This paper describes yielding break landslides in horizontally-bedded rock slopes caused by the development of rock creep under the long-term effect of the least principal stress (σ3) gradient. Here the σ3-effect is the process of landsliding due to such a mechanical mechanism.
ISBN号0-947571-38-8
收录类别其他
语种英语
文献类型会议论文
条目标识符http://ir.imde.ac.cn/handle/131551/21460
专题成都山地所知识仓储(2009年以前)
作者单位Institute of Mountain Disasters and Environment, Chinese Academy of Sciences, Chengdu, Sichuan 610015, China
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