东曲矿9~#煤层煤与瓦斯突出危险性区域预测

Hazardous Area Forecasting on Coal and Gas Outburst in Dongqu Coal Mine

为了掌握东曲矿9~#煤层在井田范围内不同区域的煤与瓦斯突出危险性,以便对矿井的开拓、开采、瓦斯综合治理等进行有效指导,根据东曲矿9~#煤层开拓开采情况合理划分预测范围,在确定预测方法、指标及其临界值的基础上,对该煤层瓦斯压力分布情况进行基础资料收集和研究,得出了东曲矿瓦斯赋存规律,并对东曲矿突出危险区域和非突区域进行了划分,同时对东曲矿采掘活动和瓦斯治理提出了要求。

In order to evaluate the risk of coal and gas outburst at different zones in No. 9 coal seam in Dong Qu coal mine,the detection range is reasonably divided according to the on site condition. Determining the prediction method and parameters and its critical value first,and then,collecting and analyzing the basic data of coal seam gas distribution to find the law of gas reserve,marking the areas as outburst or non-outburst according to the relevant risk degree,the practice is of positive guiding significance for mining,as well as for gas treatment.