金沙县高坪乡大运煤矿11081采煤工作面抽采达标评判报告金沙县高坪乡大运煤矿二〇一五年一月金沙县高坪乡大运煤矿11081采煤工作面抽采达标评判报告编制人员名单序号姓名职称或执业执格专业单位名称签字职务1234目录前言.............................................................................................................................................10.1概述..................................................................................................................................................................10.2本次抽采达标评判工作的依据......................................................................................................................21矿井及工作面概况.....................................................................................................................31.1矿井概况............................................................................................................................................................31.2工作面概况......................................................................................................................................................122．11081采煤工作面防突措施...................................................................................................122.111081采煤工作面掘进期间的防突措施....................................................................................................122.2首采面区域综合防突措施..............................................................................................................................132.3抽放量............................................................................................................................................................143．评价的地质单元划分.............................................................................................................143.1评价的地质单元划分原则..............................................................................................................................143.2评价的地质单元划分......................................................................................................................................143.3评价单元划分的结果......................................................................................................................................154．区域效果检验首采面区域防突措施效果检验.....................................................................154.1区域效果检验方法............................................................................................................................................154.2抽采钻孔均匀程度评价..................................................................................................................................154.3区域预抽效果检验钻孔布置..........................................................................................................................152.3工作面11081采面的区域验证.......................................................................................................................195．工作面11081采面预抽后的煤层残余瓦斯含量计算..........................................................195.1煤层的原始瓦斯含量....................................................................................................................................195.211081采面的煤炭储量........
