ABSTRACT
This chapter discusses shear strength properties of slip soils with coarse particles of Xietan landslide. Xietan landslide, a fossil landslide located in Zigui County, Hubei Province, China, is one of the important geo-hazards at the northern bank of Yangtze River in the Three Gorges Reservoir areas. The slip soil of Xietan landslide is mainly composed of sandy/silty clay containing gravels of sub-angular and sub-rounded fragments of sandstone, mudstone and shale. Shear strength parameters of the slip soils containing coarse particles of Xietan landslide were investigated by a series of tests. Two-and three-dimensional simulations of the landslide were performed by the FLAC program. Shear strength properties of the slip soils have important influence on stability analysis of landslides. The acceptable shear strength parameters of slip soils containing coarse particles of Xietan landslide have been concluded by tests, which can provide some experience for the similar landslides analysis.
