基金supported by the Open Foundation of the State Key Laboratory of Water Resource Protection and Utilization in Coal Mining(Gant No.SHJT-16-30.18)National Natural Science Foundation of China(No.41602364)+1 种基金National Key R&D Program of China(No.2016YFC0801404)State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology(Beijing)(No.SKLCRSM16DCB14,SKLCRSM17DC01)。