煤层冲刷的研究与预测：以大同四台井田11^#,12^#煤层冲刷带为例

Study and Prediction of Coal Bed Washout-by Exampls of 11~#、12~#CoalBed in Datong Sitai Mine

提出了用“煤层一顶板相关原理”研究预测煤层冲刷带的方法。利用大同四台煤矿提供的井田钻孔资料,对11#、12#煤层的冲刷问题进行了研究预测。研究预测的结果与实际采掘揭露的冲刷现象极为一致,说明只要有足够的有关煤层顶板岩性的资料,运用煤层一顶板相关原理的方法研究预测煤层冲刷可以达到简单、准确、定量的目的。

The method of coal bed-roof interrelated theory has been first used to study and predict coal bed washout in this paper .Using drilling data provided by Sitai mine,the washout zones in the 11#、12#coal bed have been studied and predicted. The achievement is consistent with the washout exposed by imining. It shows that the coal bed-roof interrelated theory is a simple,accurate and quantitative method which is used to study and predict coal bed washout-zone in coal bed,if the lithological data of roof is enough.