反倾层状岩质边坡倾倒变形影响因素分析  

Analysis on Dumping Deform Influent Factors of Reverse Dumping Rock Slope

作　　者：王立伟[1] 谢谟文[1] 尹彦礼[1,2] 刘翔宇[1,3] 

机构地区：[1]北京科技大学,北京100083 [2]华北水利水电大学,河南郑州450008 [3]国核电力规划设计研究院,北京100095

出　　处：《人民黄河》2014年第4期132-134,共3页Yellow River

摘　　要：以某水电站反倾层状岩质边坡为实例模型,基于叠合悬臂梁的破坏特点和摩尔-库仑模型,运用UDEC数值分析软件对倾倒变形的相关影响因素进行分析,结果表明:岩层倾角、水平地应力、风化程度、地下水及地震作用是边坡倾倒变形的主要影响因素,边坡坡角和岩层厚度是倾倒变形的次要影响因素;边坡坡角为70°左右、岩层倾角为65°左右是层状岩质边坡倾倒破坏的优势角,即在这两种情况下,边坡将出现较大变形。Based on a reverse dumping rock slope of one hydropower with composite cantilever damage characteristics and Moore-Coulomb model, the major iniluent factors of dumping had been analyzed by UDEC Numerical analysis software. The results show that the dip angle of stratum, the horizontal initial stress, the rock weather condition, the ground water and the earthquake count for the major factors of dumping; the slope angle is 70°and the dip angle 65°are toppling failure of layered rock slope advantage angle, i.e. in the two cases, there will be a larger deformation of slope.

关 键 词：倾倒边坡 UDEC 叠合悬臂梁 优势角 

分 类 号：TU457[建筑科学—岩土工程] TV223.1[建筑科学—土工工程]