期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：108
期号：3
页码：032064
DOI：10.1088/1755-1315/108/3/032064
语种：English
出版社：IOP Publishing
摘要：In order to investigate the mechanism underlying the formation of landslides induced by irrigation in Heifangtai loess area, the Phase2 software was used for numerical simulation of the typical profile of Huangci landslide, and conditions of the landslide in natural and saturated states were respectively simulated. The following findings have been obtained through analysis and calculation: In natural state, the maximum shear strain increment is 0.072, and the maximum horizontal displacement is 0.096m, observed on the slope surface; the slope is stable at this point. In saturated state, the maximum shear strain increment is 0.084, and the horizontal displacement on the potential slip surface is especially large, which is 0.168m; the slope is unstable at this point. The Huangci landslide is a typical landslide in the Heifangtai landslide group containing landslides with similar characteristics. It can be preliminarily concluded that Heifangtai landslides are also induced by the increase of moisture content resulting from long-term irrigation.
