利用井上下电磁辐射确定煤岩动力灾害的钻屑量预警值  

Determine the warning value of drilling cuttings weight coal and rock dynamic disaster through electromagnetic radiation

作　　者：高忠红[1,2] 何富连[1] 孟筠青[1] 王波[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]山西煤炭职业技术学院,山西太原030031

出　　处：《煤炭学报》2011年第4期615-618,共4页Journal of China Coal Society

基　　金：国家重点基础研究发展计划(973)资助项目(2010CB226802);教育部留学回国人员科研启动基金资助项目(2007-1108)

摘　　要：预测井下煤岩动力灾害的钻屑量预警值由于受现场条件、人的主观判断等因素影响,准确性较差,根据钻屑量与电磁辐射幅值均可以表征应力集中程度这一原理,收集平顶山天安煤业股份有限公司八矿戊9.10-12160工作面电磁辐射和钻屑量监测数据,利用曲线拟合找出二者的对应关系,同时在实验室测出该工作面煤岩样发生破坏前电磁辐射幅值一般在60 mV左右波动,最大值达到100 mV,依此计算出井下钻屑量的预警值为3.09 kg/m,最大值为5.462 kg/m,通过现场验证具有较高的准确性,证明该方法可以作为井下钻屑量预警值的确定方法。The warning value of drilling cuttings weight for predicting coal and rock dynamic disaster was affected on site conditions,subjective judgments and other factors,so the poor accuracy results were obtained usually.Based on the principle of stress concentration reflected by drilling cuttings weight and electromagnetic radiation,the date about drilling cuttings weight and electromagnetic radiation of coal mining face Wu9.10-12160 of No.8 Mine of Pingdingshan Tian＇an Coal Mining Corparation Limited was collected,and the corresponding relationship of two ways was obtained through curve fitting.The damage occurred critical value of electromagnetic radiation of the coal and rock samples of this face that was measured in the laboratory is around 60 mV,and the maximum is 100 mV.The drilling cuttings weight of this face was obtained using the fitted curve is 3.09 kg/m,and the maximum is 5.462 kg/m.The warning value of drilling cuttings weight can be determined and high accuracy results can be obtained through this method.

关 键 词：煤岩动力灾害 电磁辐射 钻屑量 预警值 

分 类 号：TD713.1[矿业工程—矿井通风与安全]