Yu, Baohai; Cheng, Jianwei; Yang, Shengqiang; Wang, Deming - In: Natural Hazards 75 (2015) 3, pp. 2965-2984
initiated a study on the dilatation energy of gas released from underground coal seam by drilling boreholes. Firstly, an in … drilling boreholes could reflect that coal gas’s ability of expansion work under normal occurrence conditions. Finally …