LI L, CHEN Q C, WU Z H, et al.Numerical simulation study on anti-slide pile-internal support composite structure in the reinforcement of high rock slope[J].Journal of Henan Polytechnic University(Natural Science) ,2022,41(5):166-173.

doi:10.16186/j.cnki.1673-9787.2020100065

Received:2020/10/26

Revised:2021/01/13

Published:2022/09/25

Numerical simulation study on anti-slide pile-internal support composite structure in the reinforcement of high rock slope

LI Lan1, CHEN Quanchuan1, WU Zhonghu1, ZHU Aijun1,2, WANG Anli3

1.College of Civil Engineering，Guizhou University，Guiyang  550025，Guizhou，China；2.Guiyang Architectural Survey Design Co.，Ltd.，Guiyang  550009，Guizhou，China；3.Guizhou Province Quality and Safety Traffic Engineering Monitoring and Inspection Center Co.，Ltd.，Guiyang  550000，Guizhou，China

Abstract:In order to solve the current problem that the reinforcement measures of the high rock slope are difficult to meet the engineering application due to the limited slope release condition，based on FLAC3D，the anti-slide piles combined internal support was performed on a high rock slope in Guizhou and three-dimensional numerical simulation calculations were performed.The changes of slope displacement，pile bending moment，shear force，pile displacement and slope safety factor during the whole process from excavation to support were analyzed.The stress and deformation characteristics of anti-slide piles with inner support and the effect of slope support were studied.The results showed that the anti-slide piles combined internal supporting structure could effectively control the deformation of the slope，improve the safety factor during the construction of the slope and enhance the overall stability of the slope.The application of internal support connected the anti-slide piles on both sides into a whole，so that the two-sided piles could bear the force and coordinate the deformation.It improved the deformation and stress state of the pile body，and greatly improved the bearing performance of the anti-slide pile.The research results could provide a certain theoretical reference for the support and treatment of such high rock slopes.

Key words:numerical simulation;high slope reinforcement;anti-slide pile;internal support;bearing performance

 岩石高边坡加固中抗滑桩-内支撑联合支护的数值模拟研究_李兰.pdf