鹤煤九矿二_(1)煤层突出预测敏感指标适用性分析  

Applicability analysis of sensitive indexes for outburst prediction of No.2_(1) coal seam in No.9 coal mine of He coal mine

作　　者：甄康哲 王海东 方正 姜琦 高佳慧 ZHEN Kangzhe;WANG Haidong;FANG Zheng;JIANG Qi;GAO Jiahui(School of Mine Safety,North China Institute of Science and Technology,Yanjiao,065201,China;No.9 Coal mine of Henan Hebi Coal Power Co.Ltd,Hebi,458000,China)

机构地区：[1]华北科技学院矿山安全学院,北京东燕郊065201 [2]鹤壁煤电股份有限公司第九煤矿,河南鹤壁458000

出　　处：《华北科技学院学报》2023年第6期23-29,共7页Journal of North China Institute of Science and Technology

基　　金：国家自然科学基金资助项目(52174181)。

摘　　要：为提高鹤煤九矿二_(1)煤层掘进工作面突出预测的准确率,通过现场实验,理论分析相结合的方法得到九矿二_(1)煤层掘进工作面突出预测指标钻孔瓦斯涌出初速度(q)、钻屑瓦斯解吸指标(Δh_(2)、K_(1))、钻屑量(S)的敏感性排序为M(q)>M(Δh_(2))>M(K_(1))>M(S)。通过量纲分析法分析钻孔瓦斯涌出初速度指标的适用性,研究结果表明钻孔瓦斯涌出初速度对于九矿二_(1)煤层的突出预测适用性最优,反映出的煤体应力、煤体强度、瓦斯赋存情况最为全面,并通过理论计算确定钻孔瓦斯涌出初速(q)指标的临界值为4.5L·min^(-1)。In order to improve the accuracy of outburst prediction in the No.2_(1)coal seam excavation working face of the No.9 Coal Mine,acombination of on-site experiments and theoretical analysis was used to obtain the sensitivity ranking of the outburst prediction indicators of the No.2_(1)coal seam excavation working face of the No.9 Coal Mine,such as the initial velocity of drilling gas emission(q),the desorption indicators of drilling cuttings gas(Δh_(2)、K_(1)),and theamount of drillingcuttings(S),as M(q)>M(Δh_(2))>M(K_(1))>M(S).The dimensional analysis method is used to analyze the applicability of the initial velocity index of gas emission from boreholes.The research results show that the initial velocity of gas emission from boreholes is the best for the outburst prediction of No.9 Coal Mine No.2_(1)Coal Seam,which reflects the most comprehensive coal stress,coal strength,and gas occurrence.The critical value of the initial velocity(q)index of gas emission from boreholes is determined to be 4.5 L·min^(-1)through theoretical calculation.

关 键 词：煤与瓦斯突出 预测分析 敏感指标 临界值 

分 类 号：TD713.2[矿业工程—矿井通风与安全]