摘要
采用统计学的分析方法定量分析和归纳总结了浅层堆积物滑坡演化过程中坡体位移和降雨量之间的幂函数分布关系;结合向家坡滑坡工程实例,考虑浅层滑坡坡体位移与降雨量关系以及降雨对滑坡滑面介质的应变软化和水致弱化影响,采用非线性科学的有关理论,建立了强降雨条件下向家坡浅层滑坡失稳的尖点突变模型,并利用该模型分析了向家坡滑坡强降雨条件下浅层滑坡失稳的破坏机理.
The power function distribution relationship between slope-mass slide displacement and rainfall of shallow loose deposits landslide was analyzed and concluded quantitatively by means of mathematic statistics;Based on the engineering example of xiangjiapo landslide,the relationship between displacement and rainfall and was considered and the effects of rainfall to strain softening and water weakening about slip surface medium were researched,the cusp-catastrophic model of shallow landslide was established by using of nonlinear science catastrophe theory,and be used to reveal the sudden instability and failure mechanism of xiangjiapo landslide due to intensive rainfall.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2012年第1期63-67,共5页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家自然科学基金资助项目(51104176)
关键词
浅层滑坡
稳定性
尖点突变
强降雨
失稳
机理
shallow landslide
stability
cusp-catastrophe
intensive rainfall
instability
mechanism
