摘要
介绍了永安煤矿主采煤层瓦斯的基础参数,包括煤层瓦斯压力、煤的破坏类型、瓦斯放散初速度、煤层瓦斯含量、煤的坚固性系数以及D、K指标。并对这些参数进行了测试和评定。测试结果表明:永安煤矿主采1号、9号、10号煤层最大瓦斯压力都超过了《防治煤与瓦斯突出规定》的临界值0.74MPa,其他单项指标也均达到或超过临界值,综合评定该3层煤均为具有突出危险性。
The paper introduces the basic parameters of main minable coal seams gas in Yongan Colliery, such as gas pressure in coal seam, damage type, initial velocity of gas emission, gas content in coal seam, coal strong coefficient and D.K value, and tests and assesses these parameters. The test results show that the biggest pres- sure of K1 .K9 .K10 main minable coal seam in Yongan Colliery exceeds the critical value 0.74 MPa of ＂Coal and Gas Outburst Prevention Regulation＂, other individual indicators reach or exceed the critical value and the three coal seams are of outburst danger.
出处
《江西煤炭科技》
2013年第4期1-3,共3页
Jiangxi Coal Science & Technology
基金
国家自然科学基金资助项目(No.51264004)
贵州省教育厅自然科学重点项目〔黔教科(2011)034号〕
贵州省科技厅工业攻关项目〔黔科合GY〔2012〕3054〕
关键词
煤层
瓦斯参数
突出危险性
D、K值
分析
coal seam
gas parameters
outburst danger
D.K value
analysis
