摘要
煤与瓦斯突出是一种极为复杂的动力现象,不同类型的突出具有不同的预测敏感指标及临界值,不同的煤层或者同一突出煤层的不同水平,也完全可能具有不同的预测敏感指标及临界值。分析了顾桥矿现用各项敏感指标钻屑量S、瓦斯解吸指标K1值和瓦斯涌出初速度q的本质、反应机理及影响因素,通过收集、整理、分析顾桥煤矿现用预测预报敏感指标,得出各项预测指标与矿井埋藏深度、煤层赋存、地质构造等的关系,分析各项预测指标超标原因,得到适合该矿的突出预测敏感指标,从而提高煤与瓦斯突出预测的可靠性,进而提高煤巷掘进速度。
Coal and gas outburst is a complicated dynamics phenomenon. The different prediction indexes and critical values are adapta- ble to different outburst. In different coal seams or different levels of the same coal seam, the indexes are different. At this paper, the essential, mechanism and effect factors of prediction indexes including drilling cuttings S, the gas adsorption index KI and the initial velocity q of gas emission are analyzed. Through collecting and analyzing the prediction indexes of Guqiao Coal Mine, the relationship of indexes and factors including depth, preservative laws and geological structures are received. The overproof reasons of various inde- xes are analyzed, and outburst prediction sensitive indicators adapted to Guqiao Coal Mine are concluded. Then the reliability of pre- diction is enhanced and the driving speed is enhanced too.
出处
《煤矿安全》
CAS
北大核心
2013年第3期163-165,共3页
Safety in Coal Mines
基金
国家重点基础研究发展计划(973计划)资助项目(2006CB202204)
河南省重大科技攻关项目(072102210033)
关键词
煤与瓦斯突出
预测预报
敏感指标
钻屑量
瓦斯解吸指标
瓦斯涌出初速度
coal and gas outburst
forecast
sensitive index
drilling cuttings
the gas adsorption index
the initial velocity of gas emis- sion
