Abstract: One of the key issues of using pile for the landslide mitigation design is to optimize the location of piles in related to the slope. The parametric studies on the impact of the pile locations are performed using MIDAS/GTS with the popular strength reduction method. When the pile is located at the bottom of the slope, the factor of safety and the lateral deformation reach the minimum values. The maximum factor of safety and the maximum lateral deformation are obtained when piles are located in the middle of the slope. The optimized location should be in the middle portion of the slope.

Key words: MIDAS/GTS, Numerical Analysis, Sliding Resistant Piles, Pile Locations, Slopes