Kinematic Simulation of Irrigation-Induced Loess Landslide in Heifangtai, Gansu Province

详细信息   

• 责任者：Hu Wei (Xi‘an Centre of Geological Survey ; China Geological Survey ; Xi’an 710054 ; China) ; Zhang Maosheng
• 刊名：Journal of Engineering Geology
• 出版年：2012
• 卷期：20(2)
• 关键词：土质滑坡 ; earth slide ; 甘肃 ; Gansu Province
• 页码：p.183-188
• 图表：3 illus., 3 tables, 27 refs.
• 分类号：1702
• issnNo：ISSN1004-9665
• isbnNo：CN11-3249/P

摘要

This paper aims to study the kinematic features of landslides to assess and mitigate landslide risks. It takes Jiaojiayatou irrigation-induced loess landslide in Heifangtai, Yongjin, Gansu Province as the research object. It is based on engineering geological mapping and soil tests,as well as landslide features analysis. It simulates the whole moving process of the landslide and analyzes the velocity field using the finite-difference-method-based kinematic model. The results show that the velocity field of the landslide can be divided into three stages： the initial acceleration stage, the high-speeding fluctuation stage and the collision deceleration stage. This study is helpful to the prediction of sliding velocity and influencing area of potential irrigation-induced loess landslides.