采动应力下煤钻屑瓦斯解吸指标试验研究  

Test Research on Gas Desorption Index of Drill Cuttings under Impact of Mining Stress

作　　者：刘义孟 董贺 高杰 LIU Yi-meng;DONG He;GAO Jie(Rongxin Gaojiazhuang Mine,China Coal Huali Energy,Lvliang 033000,China;Shenyang Research Institute,China Coal Technology and Engineering Group,Shenyang 110000,China;State Key Lab of Coal Safety Technology,Shenyang 110000,China;Shanxi Jinhui Wanfeng Coal Industry Group,Xiaoyi 032300,China)

机构地区：[1]中煤华利能源控股有限公司荣欣高家庄矿,山西吕梁033000 [2]煤科集团沈阳研究院有限公司,沈阳110000 [3]煤矿安全国家重点实验室,沈阳110000 [4]山西金晖万峰煤矿有限公司,山西孝义032300

出　　处：《煤炭技术》2020年第9期135-138,共4页Coal Technology

摘　　要：应用理论分析与现场试验的研究方法,通过基于钻屑解吸指标与煤层瓦斯压力及采动应力与煤层裂隙发育之间定性关系的理论推导分析,构建了采动应力与煤体钻屑瓦斯解吸指标之间的定性关系;并在矿井采区的首采面进行现场实测论证分析,经数据拟合对比得出该矿井采动应力与钻屑解吸指标Δh2之间的定量关系式,结果表明两者呈非线性幂函数关系,且呈指数相关性较强。Thought the research method of theoretical analysis and field test, systematically analyzed the gas analytical index of drilling cuttings under the influence of mining dynamic stress on coal body;on the basis of theoretical derivation and analysis of the qualitative relationship between mining dynamic stress and coal seam fracture development,and the qualitative relationship of drilling cuttings analysis index and coal seam gas pressure,the qualitative relationship of mining dynamic stress and gas analysis index of coal drilling cuttings is constructed;others by field measurement and analysis. It is found that there is a nonlinear power function relationship between mining stress and drilling cuttings analytical index Δh2, and the curve fitting shows that there is a strong exponential correlation between mining stress and drilling cuttings analytical index Δh2.

关 键 词：采动应力 钻屑瓦斯解吸 指标 相关性 

分 类 号：TD712[矿业工程—矿井通风与安全]