1. State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221008, China
2. Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process of the Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
3. Shanxi Coal Geology Geophysical Surveying and Mapping Institute Co. LTD, Jinzhong 030600, China
4. School of Earth Resources, China University of Geosciences, Wuhan 430074, China