多煤层条件下工作面瓦斯涌出异常分析  

Abnormal Gas Emission Analysis at Fully-mechanized Mining Face in Multilayer Seams

作　　者：王林[1] 王兆丰[1] 袁军伟[1] 杨书盈 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454010 [2]福山国际能源集团有限公司,山西柳林033300

出　　处：《煤矿安全》2014年第12期173-175,共3页Safety in Coal Mines

基　　金：国家自然科学基金青年基金资助项目(51204065);河南省科技攻关资助项目(122102310564);河南省瓦斯地质与瓦斯治理重点实验室基金资助项目(WS2013A10)

摘　　要：为了掌握寨崖底煤矿开采的3908综采工作面瓦斯涌出异常的原因,统计回采工作面邻近层瓦斯涌出占79.59%~90.26%,平均84.92%。通过现场实测邻近层瓦斯参数,分析了邻近层瓦斯涌出规律,得出6号煤层是影响综采面瓦斯涌出异常增加的主要原因。测试结果表明：煤层顶底板岩性、煤对瓦斯的吸附性能和煤的比表面积是导致6号煤层瓦斯赋存异常的主要因素。In order to master the abnormal gas emission reasons of 3908 fully - mechanized mining face in Zhaiyadi Coal Mine, we summarize that the gas emission of adjacent layer accounts for 79.59% to 90.26% , average 84.92% at working face. Through meas- uring gas parameters of the adjacent seam, we analyze the gas emission law in adjacent layer and obtain that No. 6 coal seam is the main reason which makes an effect on the increase of gas emission at fully - mechanized working face. The test results show that the lithology of the upper and lower floor of coal seam, the coal＇s desorption characteristics to gas and the coal＇s specific surface area are the main factor which lead to abnormal gas occurrence by laboratory tests.

关 键 词：综采工作面 瓦斯涌出异常 涌出规律 邻近层 主要原因 

分 类 号：TD712.5[矿业工程—矿井通风与安全]