Cause of Ground Collapse Triggered by the Wenchuan Earthquake
详细信息
- 责任者：Wu Chaofan (School of Resource Engineering ; Longyan University ; Longyan 364012 ; China) ; Qiu Zhanlin
- 刊名：Journal of Mountain Science
- 出版年：2012
- 卷期：30(1)
- 关键词：地面沉降 ; land subsidence ; 塌岸 ; bank slump ; 四川 ; Sichuan Province
- 页码：p.70-77
- 图表：6 illus., 2 tables, 19 refs.
- 分类号：1800
- 出版序号：20130577
- issnNo：ISSN1008-2786
- isbnNo：CN51-1516/P
摘要
According to the current situation of the limited research on ground collapse caused by the Wenchuan earthquake, the groups of ground collapse pit in the Shuimo River Basin are regarded as research objects in Kaimao Village, Anchang Town. The cause and mechanism of ground collapse induced by the Wenchuan earthquake are discussed by site investigation and engineering investigation, embarked on the geological environmental background in the paper. Ground collapse occurs on the premise that the upper area of Quaternary alluvium saturated with fine particles of silt, silty clay, and lower saturated coarse sand, gravel and other produce, sand liquefaction which is triggered by the strong earthquake is the internal cause of ground collapse. Furthermore, the emergence of ground collapse pits in succession shows that there is a development process of time in common when it occurs, while it is also a gradual damage.
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