近距离煤层迎采动工作面沿空掘巷支护技术
付书俊, 吴乐, 何杰
Research on the mining pressure law of the roadway along the goaf in the close coal seam
FU shujun
煤炭工程 . 2019, (6): 81 -85 .  DOI: 10.11799/ce201906017