摘要
结合郭二庄煤矿21311和22311两工作面的实际情况,通过对两工作面现场矿压观测和理论分析,提出两煤层同采时,初采错距要大于正常同采错距,并确定了同采工作面在减压区内的合理错距范围,对同采煤层的采场和巷道维护起到了积极作用。
Combining with actual conditions of 21311 and 22311 mining faces in Guo＇erzhuang Coal Mine,and after in-situ ground-control observation and theoretical analysis,the paper suggests that the rational dislocation distance of primary mining should be longer than normal mining in simultaneously mining in 2 contiguous seams,and it also establishes the rational dislocation distance range of simultaneous mining faces in pressure reducing zone,which is beneficial to keep mining field and roadway stable.
出处
《中国煤炭》
北大核心
2012年第4期48-50,54,共4页
China Coal
关键词
综采
近距离煤层开采
矿压观测
合理错距
fully mechanized mining
contiguous seams mining
ground-control observation
rational dislocation distance
