1. College of Civil Engineering, Central South University of Forestry and Technology, No. 498, Shaoshan South Rd., Tianxin District, Wen Yuan St., Changsha, 410004, China
2. Rock and Soil Engineering Research Institute, Central South University of Forestry and Technology, No. 498, Shaoshan South Rd., Tianxin District, Wen Yuan St., Changsha 410004, China
3. College of Civil Engineering, Central South University of Forestry and Technology, No. 498, Shaoshan South Rd., Tianxin District, Wen Yuan St., Changsha 410004, China (Corresponding author), e-mail: ffw1991@126.com, https://orcid.org/0000-0002-7422-2779