Numerical Evaluation of Slope Stability based on Temporal Variation of Hydraulic Conductivity

Slope failure is a common phenomenon all over the world on both man-made and natural slopes. Prolonged rainfall one of climatic factors which largely responsible for slope failure. During heavy prolonged rainfall, part rainwater infiltrates through soil seeps into slope. The infiltrated water lowers matric suction increases porewater pressure. Eventually, generated pressure decreases strength results in failures. To evaluate effect seepage stability, it necessary to investigate hydraulic conductivity soil. objective this study mechanisms. A finite element analysis stability was conducted using Geo-Studio software. numerical model developed calibrated with field monitoring data. data included observation Guelph Permeameter. Afterward, temporal variation incorporated SEEP/W program consequent changes were evaluated SLOPE/W. From analysis, identical parameters soil, different safety observed when sections retain properties. Based that greater than 4×10 -6 cm/s leads Periodic may provide deep insight rainfall-induced