Funding for this research was provided by:
the National Key Research & Development Program of China (2017YFC0804208)
National Natural Science Foundation of China (51774122, 51774048, 51504122)
Scientific Research Foundation of State Key of Coal Mine Disaster Dynamic and control ((2011DA105287-FW201605))
Article History
Received: 15 September 2018
Revised: 24 November 2018
Accepted: 14 January 2019
First Online: 8 February 2019