Multiple seepage faces on layered slopes and their implications for slope-stability analysis

摘要: This study provides an analysis of the water-table configuration and pore-pressure distribution in layered hillsides. A finite-element model was used to simulate two-dimensional, saturated–unsaturated, steady-state flow through slopes. laboratory sand-tank experiment verify physical foundation mathematical model. It is shown that slopes feature multiple seepage faces, perched water tables, wedge-shaped unsaturated zones. The faces are strongly dependent on position impeding layers their hydraulic properties. Predictions fields based homogeneous, saturated analyses may be significantly error when applied problems Slope-stability do not take into account presence wedges beneath can lead overdesign stable slope angle. Key words: groundwater conditions, unsatu...