A method for evaluating the stability of an unsaturated slope in natural terrain during rainfall
作者: Young-Suk SongByung-Gon ChaeJintae Lee
作者单位: 1Principal Researcher, Geologic Environment Division, Korean Institute of Geoscience and Mineral Resources, Daejeon, Korea
2Dam Safety Engineer, Washington State Department of Ecology, Olympia, WA, United States
刊名: Engineering Geology, 2016, Vol.210 , pp.84-92
来源数据库: Elsevier Journal
DOI: 10.1016/j.enggeo.2016.06.007
关键词: Unsaturated slopeNatural terrainSuction stressVolumetric water contentRainfallField monitoring
英文摘要: Abstract(#br)The stability of an unsaturated slope in natural terrain was evaluated based on the variation in the suction stress in the soil layer induced by rainfall. A field monitoring site where landslides have occurred in the past was selected as the study area. To apply the concept of slope stability analysis considering the suction stress in unsaturated soil, the soil-water characteristic curve (SWCC) and the suction stress characteristic curve (SSCC) of the unsaturated soil obtained from the study area were estimated using the van Genuchten (1980) model and the Lu and Likos (2006) model, respectively. The phenomenon of ground saturation induced by the infiltration of rainfall into unsaturated soil is similar to the wetting path of the SWCC. The curve-fit parameters estimated from...
全文获取路径: Elsevier  (合作)
影响因子:1.403 (2012)