黑龙煤业2103工作面停采线合理位置确定

Heilong Mining Industry 2103 Working Face Stop Line Reasonable Position Determination

为研究黑龙煤业2103工作面停采线的合理位置,通过理论分析与数值模拟,最终确定2103工作面停采线位置距离回风大巷间的煤柱宽度为44 m。工作面回采过程中监测结果表明:煤柱宽度为44 m时,煤柱内存在较大的弹性核区,能够保障煤柱和回风大巷的稳定。

In order to study the reasonable position of stop-mining line on the 2103 working face of heilong coal industry,through theoretical analysis and numerical simulation,it was finally determined that the coal pillar width between the stop-mining line on the 2103 working face and the return air roadway was 44m.The monitoring results in the mining process of the working face show that when the width of the coal pillar is 44 m,there is a large elastic core area in the coal pillar,which can ensure the stability of the coal pillar and the return roadway.