斜沟煤矿煤层缺失区古地理成因解析

Analysis on the paleogeographic cause of the deleted coal seam in the coal mine of inclined gully

巷道掘进遇煤层缺失和岩层渗水泥化现象,煤岩层赋存条件的急剧变化导致掘进效率低下,巷道支护难度和成本增加,煤层缺失范围暂未查明的情况下巷道继续掘进或重新设计难以抉择,采掘衔接中断,煤层异常的成因分析及预测范围研究成为急需解决的难题,为此,在全面收集相关区域构造及本区煤岩特征资料等多重信息的基础上提出岩相古地理分析法,对煤层缺失作出合理的古地理成因解析,并提出查明煤层缺失范围的建议供采掘计划参考。

The phenomenon of coal seam loss and rock layer cementation in roadway excavation,the rapid change of coal and rock layer occurrence conditions lead to low tunneling efficiency,increased difficulty and cost of roadway support,difficult choice of roadway excavation or redesign under the condition that the coal seam missing range has not been found out,interruption of mining connection,genetic analysis and prediction range of coal seam anomalies have become urgent problems to be solved.Therefore,on the basis of comprehensive collection of multiple information such as regional structure and coal and rock characteristics in this area,the paleogeographic analysis method of coal seam loss is put forward to make reasonable paleogeographic analysis,And put forward some suggestions to find out the missing range of coal seam for reference of mining plan.