Characteristics and Cause Analysis of the Pingxi Landslide Triggered by the Wenchuan Earthquake
详细信息
- 责任者：Yuan Jinke (State Key Laboratory of Geological Hazard Prevention & Geological Environment Protection ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Huang Runqiu
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2011
- 卷期：38(3)
- 关键词：汶川地震2008 ; Wenchuan earthquake 2008 ; 岩质滑坡 ; rockslides ; 四川 ; Sichuan Province
- 页码：p.110-114，119
- 图表：9 illus., 7 refs.
- 分类号：1800
- 出版序号：1468
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
The Pingxi landslide located in Pingwu County of Mianyang City. It was triggered by Wenchuan earthquake. 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 cause of earthquake-landslide can be divided into three stages: 1) the stage of shattering cracking; 2) the stage of friction decrease and “locked section” snipping; and 3) the stage of slope mass sliding-accumulating. Combining with mechanical analysis of structural plane and using numerical simulation to analyze the stress and earthquake-induced deformation under earthquake are of important significance to the study of earthquake-landslides.
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