SIMPLIFIED PILE-SLOPE STABILITY ANALYSIS

This paper presents a simplified approach to the study of a row of piles used for slope stabilization. The approach is based on an uncoupled formulation in which the pile response and slope stability are considered separately. The pile response when subjected to external lateral soil movements from slope instability is analysed by a modified boundary element method. A conventional simplified Bishop slip circle approach is employed to analyse the slope stability. Applications of the approach are presented and discussed with emphasis on identifying and optimizing some of the important factors that control the performance of piles used for slope stabilization. Several conclusions are drawn regarding the pile-slope stability problem, that of prime importance being the location of the piles for most effective slope stabilization.