煤层突出危险性预测敏感指标考察确定  

Inspect and ascertain of sensitive index for coal seam outburst risk prediction

作　　者：孙际宏 左安家 魏超 陈江龙 SUN Jihong;ZUO Anjia;WEI Chao;CHEN Jianglong(School of Safety Engineering,North China Institute of Science and Technology,Yanjiao,065201,China)

机构地区：[1]华北科技学院安全工程学院,北京东燕郊065201

出　　处：《华北科技学院学报》2021年第5期33-39,共7页Journal of North China Institute of Science and Technology

基　　金：中央高校基本科研业务费资助项目(3142020003,3142020056)。

摘　　要：为了保障矿井安全进行采掘生产活动,根据矿井煤层特征合理确定煤与瓦斯突出预测敏感指标。本文首先根据河南某矿三个预测指标随地质构造的变化确定其敏感性,然后采用“三率法”确定各个指标的敏感程度,进而确定矿井某煤层突出危险性预测敏感指标。研究结果表明:构造破坏和瓦斯是矿井突出灾害发生的主控因素,三个预测指标钻孔都能响应煤与瓦斯突出特征,对三个预测指反映煤层可能发生突出灾害的敏感程度进行排序,最终确定孔瓦斯涌出初速度和钻屑量可作为采掘工作面主要突出预测敏感指标,钻屑解吸指标作为辅助参考指标。In order to ensure the safety of mining activities,it is necessary to reasonably determine the sensitive indexes of coal and gas outburst prediction according to the characteristics of coal seams.The sensitivity of three prediction indexes were determined according to the change of geological structure in a mine in Henan.The sensitivity of each index were determined by using the"three rate method".Finally,the sensitive index of outburst risk prediction of a coal seam was determined.The results show that geological structure and gas are the main controlling factors of mine outburst disaster.The three prediction indexes can all respond to the characteristics of coal and gas outburst.Finally,it is determined that the initial gas emission velocity and drilling cuttings can be used as the main outburst prediction sensitive indexes of the mining face,and the drilling cuttings desorption index can be used as the auxiliary reference index.

关 键 词：煤与瓦斯突出特征 突出预测指标 三率法 敏感性 

分 类 号：TD712[矿业工程—矿井通风与安全]