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

Journal of Rock Mechanics and Geotechnical Engineering

Yucheng Zhang¹  Guanghua Yang²  Zhihui Zhong²  Xudong Fu² 

[1] Guangdong Research Institute of Water Resources and Hydropower, Guangzhou, 510610, China;School of Civil and Architectural Engineering, Wuhan University, Wuhan, 430072, China;

关键词: Slope;    Stress level;    Displacement field;    Optimal arrangement;    Variable-modulus elastoplastic model;   

DOI  :  10.1016/j.jrmge.2015.04.004

来源: DOAJ

【 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 reinforcement 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.

【 授权许可】

Unknown