1. Professor, Beijing Key Laboratory of Urban Underground Space Engineering, Univ. of Science and Technology Beijing, Beijing 100083, P.R. China; Civil and Resource Engineering School, Univ. of Science and Technology Beijing, Beijing 100083, P.R. China.
2. Ph.D. Candidate, Beijing Key Laboratory of Urban Underground Space Engineering, Univ. of Science and Technology Beijing, Beijing 100083, P.R. China; Civil and Resource Engineering School, Univ. of Science and Technology Beijing, Beijing 100083, P.R. China (corresponding author).
3. Ph.D. Candidate, Beijing Key Laboratory of Urban Underground Space Engineering, Univ. of Science and Technology Beijing, Beijing 100083, P.R. China.
4. Ph.D. Candidate, Civil and Resource Engineering School, Univ. of Science and Technology Beijing, Beijing 100083, P.R. China.