ABSTRACT
This chapter proposes a new type of 2D several nodes seepage-stress coupled thin-layer element (CTE) based on the original R. E. Goodman’s joint and Biot’s consolidation differential equations. The distribution and seepage-stress coupled interaction of Weak Intercalated Layers (WIL) in landslide are key factors resulting in the landslide disaster. Forecasting the behaviors of landslide with the WIL and mitigating the disaster maximumly are very important. The proposed CTE model is a completely coupled model, it can consider the relationship between permeability coefficient, void ratio and stresses, strains, but due to be short of seepage-stress coupled testing data, the coupled analysis in the Dayeping landslide only supposed the permeability coefficient is constant, this affects the results to some extent. The WIL adopted the coupled element to model, and the general rock adopted the 2D several nodes coupled element Cpe4p to model.
