| In Japan, from inndividual experience up to the present, intervals of landslide stabilizing piles has been decided according to landslide depth. In this paper, the authors examined optimum design of landslide-stabilization piles by centrifugal loading experiments and by FEM analysis. This has been tested under varying geo-conditions such as strength, ductility and so on.This examination showed that under various geo-conditions, maximum intervals of piles can be lessen upto eight (8) times of pile diameter. According to these experiments and numerical analysis, optimum design of landslide stabilizing piles could be established. Authors also conducted 3D slope stability analysis which resulted in moderation of landslides and reduction of about 40% of the pile work costs. |