摘要
根据含软弱夹层层状岩质边坡失稳的特点,建立了边坡地质力学模型,考虑内外环境因素对边坡稳定性的影响,建立了完善的边坡失稳尖点突变模型,分析得到了边坡系统发生突变的必要条件。边坡在与外界进行物质和能量的交换过程中,其内外环境的变化导致突变模型中控制变量改变,边坡可能不会滑坡,也可能发生快速和慢速蠕滑,从而形成复杂的演化特征。研究结果加深了对滑坡成因的认识,揭示了应用突变理论研究边坡失稳现象是可行性。
A slope geomechanical model was proposed based on the destabilization characteristics of soft sandwich-rock slopes. Based on an analysis of the effects of internal-external factors on slope stability, the cusp catastrophe model of slopes can be employed to analyze and predict the necessary conditions leading to slope catastrophes. During the processing of the mass and energy exchange with the external, this may lead to the change of controlling variables. Slides or quick or slow creeping thus may take place due to environmental complexity. This work helps deepen understanding of the formation of landslides and makes feasible the applcation of the catastrophe model to slope destabilization investigations.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第6期677-682,共6页
Journal of Chongqing University
基金
国家自然科学基金重点项目(50334060)
重庆市院士基金项目(6592)
重庆大学博士基金项目(0903005104903)
关键词
层状岩质边坡
边坡蠕滑
尖点突变模型
sandwich-rock slope
slope creeping
cusp catastrophe model
