Characteristics and cause analysis of the Pingxi landslide triggered by the Wenchuan earthquake

The Pingxi landslide is a highspeed rock landslide located in Pingwu County of Mianyang City.It was triggered by the Wenchuan earthquake.It covers an area of 3.7×104 m2 and its volume is 65×104 m3,the sliding direction is about 340°.This landslide is mainly composed of Cambrian crystalline limestone,with the development of the following two control structural plane: ① N55°-65°W /NE and ② N75°-85°E /SE.The distance between the landslide and the Shikan fault in Yingxiu-Beichuan seismogenic fault i...