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大方县大水乡大安煤矿113回风巷第9抽放段消突评价报告
贵州黔宜能源集团有限公司
大方县大水乡大安煤矿
1153回风巷第9抽放段
消突评价报告
二0 一四年五月八日
目 录
一、绪论 ··················································1
1.1立项背景············································1
1.2突出区域划分方法研究现状····························1
1.3突出区域划分的研究方法······························3
二、矿井概况················································3
2.1矿山交通位置、矿界范围······························3
2.2矿区地质征··········································5
2.2.1地层·············································5
2.2.2煤层············································6
2.2.3煤质·············································7
2.3井田水文地质概况·····································9
2.4瓦斯、煤层爆炸性和煤的自燃倾向性·····················13
三、大安煤矿1153回风巷第9抽放段突出参数测定···············16
3.1瓦斯含量测定·······································16
3.1.1瓦斯含量直接测定原理及方法····················16
3.1.2现场瓦斯含量测定······························18
3.2煤样的采集·········································19
3.3坚固性系数测定·····································20
3.3.1测定原理······································20
3.3.2仪器设备······································21
3.3.3测定步骤······································21
3.3.4数据处理······································22
3.3.5测定结果······································22
3.4煤样瓦斯放散初速度ΔP测定··························22
3.4.1测试原理······································23
3.4.2试样制备······································23
3.4.3测定结果······································24
3.5吸附常数测定·······································24
3.5.1制样··········································24
3.5.2设备··········································24
3.5.3测定步骤······································25
3.5.4注意事项······································26
3.5.5测定结果······································27
四、结论·················································27
一 绪论
1.1立项背景
煤与瓦斯突出（以下简称突出）是煤矿井下采掘过程中发生的一种煤与瓦斯的突然运动，它是一种伴有声响和猛烈力能效应的动力现象，能在很短的时间（几秒钟到几分钟）内，使采掘工作面的煤壁遭到破坏，并从煤壁内部突然向
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