钻屑瓦斯解吸指标与瓦斯含量关系的实验研究  

Experimental Research on the Relationship Between Gas Desorption Index of Drill Cuttings and Gas Content

作　　者：李新建[1,2,3] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [3]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《煤矿安全》2014年第3期8-12,共5页Safety in Coal Mines

基　　金："十二五"国家重点重大科技专项资助项目(2011ZX05040-003-003)

摘　　要：依据煤矿钻屑瓦斯解吸指标K1值的测定原理,对山西晋城大宁煤矿3#煤层的6个煤样进行了K1与瓦斯压力p关系的测定,结合实测煤样的工业分析参数,研究了钻屑瓦斯解吸指标K1随煤层瓦斯含量W的变化特性,结果表明:钻屑瓦斯解吸指标K1与煤层瓦斯含量W之间有显著的相关性,两者之间呈现很好的指数函数关系,且在瓦斯含量低值区两者符合线性关系。The relationship between gas desorption index of drill cuttings K1 and gas pressure p was measured for six coal samples from Jincheng Daning Mine in Shanxi province based on the measuring principle of index K1. Then, combined the industrial analysis parame- ters of measured coal samples, the variation characteristics of K1 with gas content W was researched. The results show that there is sig- nificant correlation between K1 and W. This correlation can be expressed by exponential function, and the two also are in accordance with the linear relation when the gas content is low.

关 键 词：钻屑瓦斯解吸指标 瓦斯含量 瓦斯压力 相关性函数 突出危险性 预测指标临界值 

分 类 号：TD713[矿业工程—矿井通风与安全]