切顶卸压无煤柱自成巷顶板断裂特征研究
杨军,王宏宇,王亚军,高玉兵,王建文,刘辉
Fracture characteristics of the roof in gob-side entry retaining with roof cutting and pressure release
采矿与安全工程学报 . 2019, (6): 1137 -1144 .