doi:10.16186/j.cnki.1673-9787.2020080057

Received:2020/08/22

Revised:2020/12/22

Published:2022/07/15

Numerical simulation study on optimization treatment of anti sliding and stability enhancement of cut slope of Shuping landslide

WU Lili1, HE Keqiang1, QUAN Enhou2, QUAN Enwei2, ZHU Yuxiang2, WU Yuanfeng2

1.School of Civil Engineering，Qingdao University of Technology，Qingdao 266033，Shandong， China;2.Shandong Huatongqiao Engineering Co.，Ltd.，Linyi  273400，Shandong，China

Abstract: In order to explore the stability law of accumulation slope in the process of slope cutting and unloa- ding, and to provide a reasonable treatment scheme for slope cutting engineering, the characteristics of sliding force and slope deformation response, the anti-sliding effect and stability increase law in the process of slope cutting and unloading were analyzed. This law provided a theoretical basis for the determination of optimal treatment scheme and numerical simulation analysis of accumulation slope. Taking the section A-A of Shuping landslide in the Three Gorges Reservoir Area as an example, the effect of emergency treatment of the landslide was analyzed, four calculation conditions were set, and the optimal treatment scheme was put forward. The optimal treatment scheme under four calculation conditions was numerically simulated by MIDAS GTS NX finite element analysis software, and the variation laws of stress,deformation and stability of the landslide in the process of slope cutting and unloading were summarized. The results showed that compared with the emergency treatment project， the stability coefficient of the optimized treatment scheme proposed in this study was improved ，and the cutting quantity was reduced by 8%. The results verified the effect of anti-sliding and stability increasing of the slope cutting，and also provided a theoretical reference for the slope cutting and unloading.

Key words:Shuping landslide;slope unloading;anti sliding and stability enhancement effect;optimization treatment

树坪滑坡切坡抗滑增稳优化治理数值模拟研究_吴丽丽.pdf