Based on the problem of coal seam floor destruction under upper coal seam mining, floor failure characteristics of different mining distance was studied by numerical simulation test and similar material test, the relationship between floor damage characteristics and working face mining distance was settled, which provided reference for the layout, support and roof manage of roadway in close coal seam mining.
刘 亮. 上煤层采动影响下煤层底板破坏特征试验研究[J]. 煤炭与化工, 2017, 40(11): 34-37,40.
Liu Liang. Experiment study on floor coal seam destruction feature under the influence of upper coal seam mining. CCI, 2017, 40(11): 34-37,40.
