1. College of Safety Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
2. State Key Laboratory of Green Low Carbon Development of Oil-Rich Coal in Western China, Xi’an 710054, China
3. Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UK
4. College of Energy Resources, Xi’an University of Science and Technology, Xi’an 710054, China