Pang, Mingkun
Zhang, Tianjun
Guo, Yi
Zhang, Lei
Funding for this research was provided by:
Study on the Mechanism of Water-Gas Coupling Fracture Expansion and Ultrasonic Characteristics of Coal Rock Mass in Drilling Holes (51774234)
Fracture Evolution and Water-Gas Coupled Permeability Mechanism of Coal Body Around Extraction Borehole (2021JM-390)
Article History
Received: 7 January 2021
Accepted: 11 May 2021
First Online: 31 May 2021
Competing interests
: The authors declare no competing interests.