Influence of Rainfall Infiltration on Landslide Treatment Engineering
Rainfall infiltration can induce landslides and influence engineering treatment effects. With a landslide uncounted in expressway construction in Shanxi province as an example, the bad effect of water was analyzed. Based on changes in soil strength caused by rainfall infiltration and shear experiments of undisturbed and water-saturated sliding zone soil under several conditions, the calculation parameters of soil were determined. Distribution of the maximum principal stress and shear stress inside the supported landslide before and after the rain was calculated through FEM numerical simulation and then deformation and failure mechanism of landslide was analyzed; the results reveal that for the supported landslide, the principal stress is mainly caused by gravity before and after the rain, meanwhile infiltration can induce increase in instantaneous strain and dramatic change in maximum shearing stress which is focused on the sliding surface adjacent to the bedding plane. As mentioned above, the drainage of surface water and groundwater in landslide treatment can delay landslide deformation effectively.
landslide rainfall stress distribution sliding zone soil drainage engineer
Xinhua Xiang Juying Wang Yanping Yang
College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan, China Shan Sedin Engineering Co., Ltd., Taiyuan, China Shanxi Provincial Research Institute of Communication, Taiyuan, China
国际会议
三峡
英文
3236-3240
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）