Numerical Simulation of the Influence of Structural Planes on Seismic Motion on Rock Slopes
详细信息
- 责任者：Tian Xiaofu (Beijing Institute of Geological Engineering ; Beijing 100048 ; China) ; Sun Jinzhong
- 刊名：Geology and Prospecting
- 出版年：2012
- 卷期：50(4)
- 关键词：结构面 ; structural planes ; 岩质边坡 ; rock slope
- 页码：p.840-846
- 图表：3 illus., 1 table, 19 refs.
- 分类号：1702
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
Numerical simulation with software UDEC is conducted to study the influence of structural planes on the earthquake motion on rock slopes..The study deals with the influence of varying attitudes and positions of structure planes on the amplification of earthquake motion on rock slopes.According to general situations of structure planes developing in rock slopes,this study focuses on penetrating structural planes intersecting with the slope surface.And the primary objectives of simulation are strata layers and long penetrating weak structural planes.The results show that the closer the structural plane to the top surface of the slope,the stronger the earthquake response of the slope is.The structural plane downward to the slope surface will cause stronger earthquake motion on the upper slope body than that caused by structural planes horizontal or anti-dip to the slope surface.A steeper slope surface can produce stronger earthquake motion on the top or shoulder of the slope.The laws above mentioned will be valuable references to the earthquake stability analysis of rock slopes.
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