云冈矿8623工作面切眼贯通方案及误差预计分析

Cut Transfixion Scheme and Error Prediction Analysis of the 8623 Working Face in Yungang Coal Mine

本文设计了云冈矿8623工作面切眼贯通方案,并计算分析误差预计。结果表明,纵、横坐标增量闭合差分别为fx=0.140m、fy=0.116m,符合有关规程规定贯通允许误差为±0.3m的要求,设计合理,为保障该工作面的正常开采提供了基础。

In this paper,the scheme of cut through in 8623 face of Yungang Mine is designed,and the error prediction is calculated.The results show that the incremental closure errors of the vertical and horizontal coordinates are fx=0.140m and fy=0.116m respectively,which meet the requirements of the relevant regulations that the allowable through error is±0.3m.The design is reasonable,which provides the basis for the normal mining of the working face.