Dynamic response of the Daguangbao landslide triggered by the Wenchuan earthquake with a composite hypocenter

To identify the correspondence between different dynamic responses of Daguangbao landslide and faulting mechanisms composite-hypocenter, whole hypocenter Wenchuan earthquake was divided into four sub-hypocenters. On another hand, based on location Dauangbao landslide, composite-hypocenter Initial Sub-hypocenter, Approaching Local Receding sub-hypocenter Terminal sub-hypocenter. Subsequently, response modeled by using UDEC software. The results show that progressive damage critical failure mega are triggered second Simutaneously, with respect to classification basis, its is induced Hypocenter in time sequence. triggers failure. During long-runout stage, besides local topography, self-gravity poses a dominant contribution landslide. Especially, inertial seismic force key factor ejection stage following forces corresponding influence slightly. horizontal