摘要
运用力学原理对某矿特厚综放开采煤层的回采巷道煤柱进行了理论分析,确定了其理论宽度;通过数值模拟方法,得出了不同开采情况下、不同煤柱尺寸对煤柱稳定性的影响,并提出煤柱优化的方向。
Mechanics theory is used to analyze the coal pillars fully-mechanized top coal caving seam. The pillar width was determined. in gateways in extra-thick Through numerical simulation, stability influence was achieved in different mining conditions and different pillar sizes. Besides, optimization direction for the pillars was proposed.
出处
《山西煤炭》
2013年第7期51-53,共3页
Shanxi Coal
