1. Xi’an University of Science and Technology, 58, Yanta Mid. Road, Xi’an 710054, Shaanxi, PR China
2. Post-doctoral Research Center of Mining Engineering, Xi’an University of Science and Technology, 58, Yanta Mid. Road, Xi’an 710054, Shaanxi, PR China
3. School of Safety Science and Engineering, Xi’an University of Science and Technology, 58, Yanta Mid. Road, Xi’an 710054, Shaanxi, PR China
4. Shaanxi Key Laboratory of Prevention and Control of Coal Fire, 58, Yanta Mid. Road, Xi’an 710054, Shaanxi, PR China