瓦斯为突出主导因素的煤层突出预测敏感指标及临界值考察  

The Prediction Index and Critical Value of Coal Seam Outburst with Gas as Dominant Factor

作　　者：单大阔 SHAN Da-kuo(Shenyang Research Institute Co.,Ltd.,China Coal Technology & Engineering Group,Fushun 113122,China;State Key Laboratory of Coal Mine Safety Technology,Fushun 113122,China)

机构地区：[1]中煤科工集团沈阳研究院有限公司,辽宁抚顺113122 [2]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《煤》2021年第12期20-22,93,共4页Coal

摘　　要：对于不同矿区、不同煤层,煤与瓦斯突出的主导因素也有所不同。为合理确定以瓦斯为突出主导因素的煤层突出预测指标及其临界值,指导矿井开展煤与瓦斯突出预测工作,通过采集煤样进行实验室考察分析、现场跟踪测定,结合利用数理统计分析的方法,确定羊东煤矿2号煤层的敏感指标为钻屑瓦斯解吸指标△h_(2),其临界值为190 Pa(湿煤样为150 Pa),辅助指标为钻屑量S。考察结果适用于羊东煤矿掘进工作面、石门揭煤工作面及采煤工作面的煤与瓦斯突出危险性预测,对矿井安全生产工作具有重要指导意义。The dominant factors of coal and gas outburst are also different for different mining areas and coal seams.For reasonable to highlight the dominant factor of the coal seam with gas outburst prediction index and critical value,the coal and gas outburst prediction work of mine,through the acquisition of coal samples for laboratory analysis,field tracing measurement,combined with mathematical statistics analysis method,to determine the sheep east coal mine No.2 coal seam sensitive index for drilling cuttings gas desorption index of△h_(2),the critical value was 190 Pa(150 Pa for wet coal sample),and the auxiliary parameter was drilling cuttings quantity S Parameter.The investigation results can be applied to the prediction of coal and gas outburst risk of heading face,Shimen uncovering face and mining face in Yangdong Coal Mine,which has important guiding significance for mine safety production.

关 键 词：煤与瓦斯突出 钻屑瓦斯解吸指标 钻屑量 三率法 

分 类 号：TD712[矿业工程—矿井通风与安全]