Study on Difference in Elevation Response of Slope Collapsing and Sliding Triggered by Seismic Action

• 责任者：Cui Fangpeng (Key Laboratory of Engineering Geomechanics ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Hu Ruilin
• 刊名：Hydrogeology and Engineering Geology
• 出版年：2010
• 卷期：37(4)
• 关键词：地震工程地质 ; seismic engineering geology ; 斜坡 ; slopes
• 页码：p.38-42,67
• 图表：8 illus., 3 tables, 11 refs.
• 分类号：1702
• issnNo：ISSN1000-3665
• isbnNo：CN11-2202/P

///Spatial distribution of slope mechanical parameters on its collapsing and sliding triggered by seismic load is studied by applying rock dynamic triaxial shear test and finite difference numerical simulation. Results show that evident difference in elevation response of slope initial collapsing and sliding triggered by seismic dynamic influence, i.e. initial fracturing always originates in the place of slope shoulder. Secondly, critical failure strain decreases with buried depth decreasing of slope body unit, and double factors that critical failure strain decreasing and peak ground acceleration increasing in slope shoulder result in initial fracturing here. Thirdly, dynamic shear strength decreases with buried depth decreasing of slope body unit, and double factors that dynamic shear strength decreasing and peak ground acceleration increasing in slope shoulder lead to initial fracturing.