开采保护层与预抽煤层瓦斯防突效果分析  

Analysis on Effect of Gas Outburst Prevention in Exploitation Protective Coal Seam and Pre-extraction Coal Seam Gas

作　　者：焦先军[1] 童校长[1,2] 李明强 JIAO Xianjun;TONG Xiaozhang;LI Mingqiang(Huainan Mining Industry(Group)Co.,Ltd.,Huainan 232000,China;Ping′an Mining Engineering Technology Research Institute Co.,Ltd.,National Engineering Research Center for Coal Gas Control,Huainan 232001,China)

机构地区：[1]淮南矿业(集团)有限责任公司,安徽淮南232000 [2]平安煤炭开采工程技术研究院有限责任公司煤矿瓦斯治理国家工程研究中心,安徽淮南232001

出　　处：《煤炭技术》2024年第2期118-120,共3页Coal Technology

摘　　要：为比较开采保护层与预抽煤层瓦斯防突效果,以1124(3)运顺开采保护层段和预抽煤层瓦斯段煤巷掘进为试验对象,统计了试验地点煤巷掘进期间残余瓦斯含量、钻屑瓦斯解吸指标K1、钻屑量等防突指标,采用假设检验方法推断了各防突指标是否有差别,分析了开采保护层段和预抽煤层瓦斯段各防突指标产生差别的原因,验证了开采保护层区域防突措施比预抽煤层瓦斯区域防突措施更加安全可靠。In order to compare the effect of gas outburst prevention in exploitation protective coal seam and pre-extraction coal seam gas,the area exploitation protectived coal seam and the area pre-extractioned coal seam gas of the 1124(3)transport tunnels as the test subject.Gas prevention indicators during excavation such as the residual gas content,gas desorption index drill cuttings K1,the amount of drilling debris,were statistically counted.The hypothesis testing method was used to determine whether there were differences in gas prevention indicators,and the reasons for the differences in the gas prevention indicators between the exploitation protective coal seam and the pre-extraction coal seam gas were analyzed.The results showed the measures of gas outburst prevention in exploitation protective coal seam were safer and more reliable than those in pre-extraction coal seam gas.

关 键 词：开采保护层 预抽煤层瓦斯 瓦斯含量 钻屑瓦斯解吸指标K1 钻屑量 假设检验 

分 类 号：TD712[矿业工程—矿井通风与安全]