大宁矿突出主控因素及区域措施效检指标临界值确定  

Determination of Main Controlling Factors of Coal and Gas Outburst and Critical Value of Effectiveness Examination for Regional Measures in Daning Coal Mine

作　　者：郭寿松[1,2] 

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

出　　处：《煤矿安全》2014年第7期5-8,共4页Safety in Coal Mines

基　　金：国家科技重大专项资助项目(2011ZX05040-003-003-003)

摘　　要：如何确定预抽效果检验指标临界值是当前煤与瓦斯突出矿井亟待解决的技术问题之一。根据大宁矿的煤层瓦斯地质条件,分析了断层、构造煤以及瓦斯对矿井3#煤层煤与瓦斯突出的控制作用。根据钻屑瓦斯解吸指标K1与煤层瓦斯含量之间的关系,利用瓦斯含量测定技术,结合现场统计分析方法以及国内外多年的防突实践经验,确定了大宁矿3#煤层赋存正常区域的预抽效果检验指标临界值为9 m3/t,地质构造异常区域的预抽效果检验指标临界值为7 m3/t。How to determine the effect of predrainage inspection index critical value is one of the technical problems that coal and gas outburst mine should be resolved. According to the coal seam gas geological conditions of Daning Coal Mine, the article analyzed the control action of fault, tectonic coal and gas on No. 3 coal seam. According to the relationships between desorption index of drill cuttings K1 and gas content of coal seam,using the gas content measurement technology, and combined the statistical analysis method and outburst prevention practice experience for many years at home and abroad, the article determined that the effect of predrainage inspection index critical value is 9 m3/t in normal area of No. 3 coal seam, and the index critical value is 7 m3/t in tectonic anomaly area.

关 键 词：瓦斯 煤与瓦斯突出 主控因素 临界值 钻屑瓦斯解吸指标 效检指标 

分 类 号：TD713.3[矿业工程—矿井通风与安全]