1. NJU-ECE Institute for Underground Space and Geo-environment, School of Earth Sciences and Engineering; Nanjing University; Nanjing; China; 210093
2. Ecole Polytechnique Fédérale de Lausanne (EPFL); Laboratory for Rock Mechanics (LMR), EPFL-ENAC-IIC-LMR; Station 18, CH-1015; Lausanne; Switzerland
3. Tritech Engineering and Testing (Singapore) Pte Ltd; Tritech Building; 2 Kaki Bukit Place; Singapore; 416180