1. China Railway Construction Corporation Limited Plateau Tunnel Construction Technology and Equipment R&D Center, China Railway 20th Bureau Group Co., Ltd., Xi’an 710016, PR China.
2. School of Mechanics & Civil Engineering, China Univ. of Mining & Technology, Xuzhou 221116, Jiangsu, PR China (corresponding author). ORCID: .
3. School of Mechanics & Civil Engineering, China Univ. of Mining & Technology, Xuzhou 221116, Jiangsu, PR China.