Seepage-stress coupled modeling for rainfall induced loess landslide

• DOI: 10.1016/j.taml.2019.02.006
• Publication Date: 2019-02-12T23:04:29Z
• Authors: Danyang Zhou; Zhen Zhang; Jiachun Li; Xiaoliang Wang
• Keywords: Cohesion (chemistry); Loess plateau; Slope failure; Landslide mitigation; Wet season

Although rainfall is rare on the Loess Plateau of western China, landslides occur frequently there in rainy season. Surveys report that landslide hazards always follow heavy rains. In this study, a seepage-stress coupling model for induced used to examine an actual disastrous event Yulin by end July, 2017. The effects duration, intensity and soil weakening slope stability are studied detail. results illustrate safety factor drops sharply at first then gradually declining below 1.05 during additional two days rain. With strength softening considered, would be more unstable, which cohesion found sensitive factor.