溪洛渡库区干海子滑坡变形特征分析  

Analysis on the deformation behaviour of Ganhaizi landslide after impoundment of Xiluodu Reservoir

作　　者：樊柱军[1] 王振[2] 

机构地区：[1]中国电力工程顾问集团西北电力设计院,陕西西安710032 [2]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《中国地质灾害与防治学报》2013年第2期38-43,共6页The Chinese Journal of Geological Hazard and Control

摘　　要：通过有限差分软件FLAC3D对滑坡进行了三维数值位移计算及变形特征分析,结果表明:水库正常蓄水至600m高程,滑坡的剪切变形主要集中在前缘垮堵湾附近,前缘局部会发生浅层滑带;后缘拉伸屈服区域较大,坡度较陡,可能会发生崩塌或倾倒;滑坡的水平、竖向位移变形主要集中在前缘高程590～650m、x=479200～x=479214靠近跨堵弯附近区域。This paper analyzes the landslide three-dimensional displacement and deformation behaviour by the finite difference software FLAC3D,the assessment indicates that:after the reservoir water rises to the 600m elevation,shear deformation is mainly concentrated in the leading edge of KuaDuWan,shallow sliding may occur;the Landslide trailing edg have larger tensile yield areas,steep,may be the event of failure or dumping;the landslide level、vertical displacement deformation is mainly concentrated in the elevation of the leading edge of 590~650m,x=479200~x=479214 close to KuaDuWan.

关 键 词：滑坡 变形特征 剪切变形 浅层滑带 拉伸屈服 

分 类 号：P642.22[天文地球—工程地质学]