瓦斯抽采施工设计(范本)1要点详解.doc

泸县鑫福煤业有限公司狐狸坡煤矿 4124采煤工作面（北段）瓦斯抽采施工设计 泸县鑫福煤业有限公司狐狸坡煤矿 二0一四年八月一日 4124采煤工作面（北段）瓦斯抽采施工设计 会 审 栏 部 门 审批人签字 签字时间 审批意见 编 制 颜 陈 2014.8.1 通 维 队 技 术 科 调 度 室 安 全 科 通风 副总 机电副矿长 生产副矿长 安全副矿长 总 工 矿 长 目 录 第一章 采煤工作面概况········································5 第一节 采煤工作面位置及相邻情况··························5 第二节 开采范围及可采期··································5 第三节 地质构造及煤层赋存情况····························5 第四节 煤层顶底板特征····································6 第五节 煤尘爆炸性········································8 第六节 煤的自燃倾向等级··································8 第七节 水文情况··········································8 第八节 采煤工作面采煤工艺································8 第九节 邻近煤层··········································9 第十节 冲击地压··········································9 第二章 瓦斯情况··········································9 第一节 矿井瓦斯等级······································9 第二节 矿井煤层瓦斯含量及梯度····························10 第三节 矿井瓦斯赋存因素分析······························10 第四节 工作面瓦斯来源分析·······························10 第五节 煤层瓦斯抽采参数·································11 第六节 工作面每个循环瓦斯涌出量预计·····················11 第三章 工作面瓦斯抽采设计···································12 第一节 工作面瓦斯抽采方法的确定·························12 第二节 上隅角插管抽采法·································12 第三节 采空区高位顶板钻孔抽采方法·······················13 一、原理·················································13 二、钻场的确定···········································14 三、钻孔施工参数·········································14 一、钻孔数量···········································14 二、钻孔直径···········································14 三、钻孔间距···········································14 四、开孔位置···········································14 五、钻孔倾角、深度及与巷道中心线的夹角计算·············15 六、钻孔参数表·········································22 四、施工要求·············································22 五、钻孔（钻场）工程量···································23 六、封孔·················································23 七、施工设备与进度计划·····················