龙门峡南矿K1煤层工作面突出预测指标敏感性研究  

Sensitivity Research on Outstanding Predictive Indicators of Working Face of K1 Coal Seam in Longmenxia South Mine

作　　者：邓华易 胡杰[1,2] 肖乔 DENG Huayi;HU Jie;XIAO Qiao(CCTEG Chongqing Research Institute,Chongqing 400037,China;State Key Laboratory of the Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China;College of Energy and Mining Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [3]山东科技大学能源与矿业工程学院,山东青岛266590

出　　处：《煤炭技术》2022年第11期159-163,共5页Coal Technology

摘　　要：工作面突出预测指标敏感性决定了突出预测的精准程度,为考察确定龙门峡南矿K1煤层工作面突出危险性预测敏感指标,结合煤与瓦斯突出诱导因素及矿井实际,确立了煤层赋存、地质构造及瓦斯含量为敏感指标的考察依据。通过初期考察初步确立了钻屑瓦斯解吸指标(K1值、Δh2)、钻孔瓦斯涌出初速度(q)以及钻屑量(S值)对反馈煤与瓦斯突出的敏感性,通过扩大性应用阶段验证了钻屑瓦斯解吸指标(K1值)为K1煤层工作面突出预测敏感指标的合理性及可行性,对矿井实现高效精准的突出预测工作提供了指导,为类似矿井开展工作面突出危险性预测指标敏感性考察提供参考。The accuracy of outburst prediction depends on the sensitivity of working face outburst prediction index.To investigate and determine the sensitive index of K1 coal seam outburst risk prediction in Longmenxia South mine,regarded the geological structure,coal seam conditions,and gas content as the basis for the investigation with the inducing factors of coal and gas outburst and the field conditions considered.Based on the preliminary investigation,the sensitivity of the gas desorption index of drill cuttings (K1,Δh2),borehole gas emission velocity (q),and drilling cuttings volume (S) on the feedback o coal and gas outburst is established.The rationality and feasibility of sensitive indicators for mine are validated by expanding the application stage to verify the drilling cuttings gas desorption index (K1) for K1 coal seam working face outburst prediction to realize precise outburst prediction work provides guidance,which provides reference for the sensitivity study of risk prediction index for the similar mines.

关 键 词：工作面突出危险性 预测指标 敏感指标 规律研究 

分 类 号：TD713[矿业工程—矿井通风与安全]