近距离煤层群下行开采覆岩运移特征试验分析
孙力,杨科,闫书缘,许鸣皋
Experimental Analysis of Overlying Strata Movement Characteristic under Close Distance Coal Seam Group Downward Mining
Sun Li,Yang Ke,Yan Shuyuan,Xu Minggao
地下空间与工程学报 . 2014, (5): 1158 -1163 .