大同矿区坚硬顶板破断步距及变形规律研究

夏彬伟，李晓龙，卢义玉，贾金龙

Study on the breaking span and deformation of hard roof in Datong mining area

XIA Binwei，LI Xiaolong，LU Yiyu，JIA Jinlong

采矿与安全工程学报 . 2016, (6): 1038 -1044 .