Optimal design of anchor cables for slope reinforcement based on stress and displacement fields

作     者：Guanghua Yang Zhihui Zhong Yucheng Zhang Xudong Fu 

作者机构：School of Civil and Architectural Engineering Wuhan University Guangdong Research Institute of Water Resources and Hydropower Geotechnical Engineering Technology Center of Guangdong Province Emergency Technology Research Center of Guangdong Province for Public Events 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2015年第7卷第4期

页      面：411-420页

核心收录：

学科分类：08[工学] 081401[工学-岩土工程] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：funded by the National Natural Science Foundation of China (Grant Nos. 51378131 and 51378403) 

主　　题：Slope Stress levelDisplacement fieldOptimal arrangementVariable modulus elastoplastic model 

摘      要：How to determine reasonable position and length of anchor cable is a frequently encountered but not well addressed problem in slope reinforcement projects. In this paper, the variable-modulus elastoplastic strength reduction method （SRM） is used to obtain the stress field, displacement field, and factor of safety of slope. Slope reinforcement using anchor cables is modeled by surface loading, i.e. different distributions of surface loading represent various reinforcement schemes. Optimal reinforcement scheme of anchor cables can be determined based on slope stress and displacement fields. By comparing the factor of safety and stress field before and after slope reinforcement, it is found that better rein-forcement results can be achieved if strong reinforcement is applied upon the regions with high stress and large displacement. This method can well optimize the arrangement of anchor cables. In addition, several cases are employed to verify the proposed method.