吴丽丽, 贺可强, 全恩厚,等.树坪滑坡切坡抗滑增稳优化治理数值模拟研究[J].河南理工大学学报（自然科学版）,2022,41(4):158-165.

WU L L, HE K Q, QUAN E H,et al.Numerical simulation study on optimization treatment of anti sliding and stability enhancement of cut slope of Shuping landslide[J].Journal of Henan Polytechnic University(Natural Science) ,2022,41(4):158-165.

树坪滑坡切坡抗滑增稳优化治理数值模拟研究

吴丽丽1, 贺可强1, 全恩厚2, 全恩伟2, 朱裕祥2, 吴远锋2

1.青岛理工大学 土木工程学院，山东 青岛266033;2.山东华通路桥工程有限公司，山东 临沂 273400

摘要:为了探究堆积层边坡切坡卸载过程中的稳定性规律，并为切坡工程提供合理的治理方案，本文分析了下滑动力和边坡变形响应特点，以及切坡卸载过程中的抗滑效应与稳定性增加规律，该规律为堆积层边坡优化治理方案的确定与数值模拟分析提供了理论基础。以三峡库区树坪滑坡A-A剖面为例，分析该滑坡的应急治理工程效果，提出4种计算工况并提出优化治理方案，用MIDAS GTS NX有限元分析软件对4种计算工况下的优化治理方案进行数值拟，总结该滑坡在切坡卸载过程中的受力、变形及稳定性变化规律。结果表明：相较于应急治 理工程，本文提出的优化治理方案稳定性系数高且满足要求，切方量下降8％。该结果验证了切坡抗滑增稳效应，可为边坡的切坡卸载提供理论参考。

关键词:树坪滑坡;边坡卸载;抗滑增稳效应;优化治理

doi:10.16186/j.cnki.1673-9787.2020080057

基金项目:国家自然科学基金资助项目（41372297）；三峡库区地质灾害教育部重点实验室（三峡大学）开放基金资助项目 （2017KDZ03 ）；山东省自然科学基金资助项目（ZR2020KE004 ）

收稿日期:2020/08/22

修回日期:2020/12/22

出版日期: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