1. College of Geology and Environment, Xi’an University of Science and Technology, Xi’an, China
2. Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation, Xi’an University of Science and Technology, Xi’an, China
3. Post-Doctoral Research Station of Geological Resources and Geological Engineering, Xi’an University of Science and Technology, Xi’an, China
4. Geological Research Institute for Coal Green Mining, Xi’an University of Science and Technology, Xi’an, China
5. Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process, Ministry of Education, China University of Mining and Technology, Xuzhou, China
6. Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an, China