区域防突措施效果检验瓦斯含量临界值确定方法研究  

Determination method for gas content critical value in the effect test of regional outburst prevention measures

作　　者：吕贵春 LV Gui-chun(China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400039,China;State Key Laboratory of Gas Disaster Monitoring and Emergency Technology,Chongqing 400037,China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400039 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037

出　　处：《煤炭工程》2018年第8期105-108,共4页Coal Engineering

摘　　要：以贵州中岭煤矿一井3~#煤层为例,通过实验室基本参数测定和瓦斯吸附解吸实验,建立W-P和W-(K_1或Δh_2)关系式,结合瓦斯地质资料、已有生产资料、瓦斯动力现象时的瓦斯指标等,综合确定煤层瓦斯含量临界初值;现场考察临界值初值的可靠性,对其进行合理修正;通过扩大应用最终确定瓦斯含量临界值。采用该方法确定的3#煤层瓦斯含量临界值为10.0m^3/t,后期生产表明,该临界值合理、可靠,有效指导了矿井安全生产。Taking No. 3 coal seam of Zhongling Coal Mine as an example,firstly,the critical initial value of coal seam gas content was determined by using W-P and W-（ K1 or Delta h2） relationship which was obtained by experimental study,combining gas geological data, production data and gas dynamic phenomena. Secondly, through field investigation,the reliability of the initial value of the critical value was examined,and the initial value was reasonably corrected. Finally,the critical value of gas content was confirmed by expanding application. The critical value of No. 3 coal seam gas content determined by this method was 10. 0 m^3/t. The later production showed that the critical value was reasonable and reliable,which effectively guided the mine safety production.

关 键 词：区域措施效果检验 瓦斯含量 临界值 瓦斯吸附解吸实验 

分 类 号：TD712.3[矿业工程—矿井通风与安全]