A Stability Analysis of the Ancient Site of Liye Based on the Strength Reduction Method

Due to the effects of time and space, there is a continuous deterioration surface layers earthen sites corresponding decline in soil stability. Evaluating stability these very important for potential site restoration. In this study, we analyze, evaluate, summarize factors that adversely affect ancient moat Liye, town Longshan County, Hunan Province, China, through on-site investigation, sampling, testing. An X-ray diffractometer scanning electron microscope were used analyze chemical composition microstructure sample trench, ABAQUS software was produce two-dimensional models seriously damaged areas. Using strength reduction method, obtained minimum safety factor trench under its natural state after rainfall; thus, examined different working conditions. Additionally, evaluated performance more dangerous sections provide basis evaluation, protection, repair trench. The results show rain erosion, freeze–thaw cycles, man-made damage are primary contributing site. found decrease with increases water content; has an impact on wall. wall larger pores initial cracks than does soil, which easy peel off. As result, high probability secondary deformation slope. Our identify real existing both evaluation scientific formulation restoration schemes.