Optimization and Mechanical Characteristics of Spatial Arc Antislide Pile

To improve the stress state of traditional antislide pile and utilize stable soil on both sides a landslide slope foot, spatial arc supporting structure was proposed. Based numerical calculation, parametric study conducted to assess influence rise-span ratio structure, displacement top, earth pressure in front pile. The optimal 3-16 according simulation results. An indoor model test at carried out, recording strain results showed that some indices increased with increase ratio, such as load transferred arch bending moment piles, pressure; within certain depth near is loose during loading processes, range zero. overall safety factors four models were 2.42, 2.66, 2.78, 2.84, respectively, which can satisfy requirements for practical engineering. verify feasibility rationality provide new idea treatment.