1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, 2 Xiaohongshan, Wuhan, Hubei 430071, P. R. China, https://orcid.org/0000-0001-9746-7210
2. Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, 12 Jiangan Rd., Qixing District, Guilin, 541004, P. R. China
3. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, 2 Xiaohongshan, Wuhan, Hubei 430071, P. R. China (Corresponding author), e-mail: cfwei@whrsm.ac.cn, https://orcid.org/0000-0002-7259-9652