A COMPREHENSIVE REVIEW OF PILE STABILIZED SLOPE: ANALYSIS METHOD AND DETERMINATION OF CRITICAL DESIGN PARAMETERS

Abstract

The laterally loaded piles play a critical role in the stabilization of both engineered and natural soil slopes. Although the importance of pile in the stabilization of slopes has been recognized from a wide variety of literatures, it remains a great challenge to understand that kind of interaction mechanism between the pile and the soil. Numerous analytical methods and numerical methods have been developed and purposed to investigate its reinforcement mechanism, the performance of pile and the behavior of slope has also received much attention. To provide a solid foundation for the understanding of its reinforcement mechanism, the methods to evaluate the lateral pressure imposes on the pile have been compared. To make a comprehensive review, the soil arching mechanisms of pile stabilized slopes and group effects of pile row have been discussed thoroughly. As the pile-soil interaction is a complicated problem, the uncoupled analysis method that the response of passive piles and stability of slopes are considered separately has also been summarized and compared. The analysis methods including Finite Element Method and Limit Analysis Method have been discussed with respect to the basic concept and the utilization. The determination of the critical design parameters of pile stabilized slope is various from literature, which has been discussed and reviewed thoroughly.