宁夏大学学报（自然科学版）Issue(2)：151-156,6.
考虑降雨与坡脚采石影响的海岛岩质边坡稳定性分析
Stability of Island Rock Slope under Rainfall and Toe Quarrying
摘要
Abstract
Based on the actual monitoring displacement of island rock slope and by using the finite element strength reduction method,the effects of rainfall and toe quarrying on the stability of island rock slope have been studied.An equivalent reduction approach is proposed to consider the influence of rainfall on slope stability.The kernel of this method is that the slope displacement increment caused by rainfall is equal to the displacement increment caused by the reduction of slope strength parameters.Based on the relationship between daily rainfall and daily incremental displacement and the relationship between reduction factor and displacement,taking the displacement as the intermediate variable,the corresponding relationship between daily rainfall intensity and slope equivalent reduction coefficient is established and early warning values of slope instability due to rainfall are proposed.For the influence of toe quarrying, eleven calculation schemes are presented.Based on the analysis of computing result,the influence of toe quarrying on the safety factor has been obtained,and the early warning value of toe excavation on stability of island slope are also proposed.关键词
岩质边坡/有限元强度折减法/降雨/坡脚采石/稳定性Key words
rock slope/the strength reduction of finite element method/rainfall/toe quarrying/stability分类
建筑与水利引用本文复制引用
徐广波,孔亮,刘乐军,王东亮..考虑降雨与坡脚采石影响的海岛岩质边坡稳定性分析[J].宁夏大学学报（自然科学版）,2015,(2):151-156,6.基金项目
山东省自然科学杰出青年基金资助项目（JQ201017）；海洋行业公益性项目 （）
