板石煤矿42201工作面瓦斯抽采施工设计

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1、板石煤矿工作面瓦斯抽采施工设计——42201工作面目录第一节42201工作面概况一、工作面说明·················································3二、瓦斯赋存情况·············································6三、采煤方法···············································7四、抽采区域划定·············································7第二节42201工作面瓦斯来源分析及

2、涌出量预计一、开采层瓦斯涌出量··········································8二、邻近层瓦斯涌出量··········································9第三节42201工作面通风系统一、风量计算·················································12二、通风路线·················································13第四节42201工作面瓦斯监测系统一、甲烷传感器布置···········

3、································14二、监测监控分站·············································14三、监测监控系统安装、使用规定······························15第五节42201工作面瓦斯抽采施工设计一、本煤层预抽钻孔布置·······································17二、近距离段孔抽采···········································18三、高位钻孔抽采········

4、·····································19四、临近层下斜钻孔抽采抽采···································20五、采空区预埋管抽采········································21三十七板石煤矿工作面瓦斯抽采施工设计——42201工作面六、移动浮抽管抽采···········································21第六节42201工作面瓦斯抽采系统与设备一、管路选择····························

5、······················23二、瓦斯抽采泵选择···········································23三、抽采管路布置与铺设·······································26四、计量检测装置·············································26五、附设装置··················································26第七节42201工作面抽采施工安全技术施··············

6、············28第八节42201工作面抽采施工设计图······························36三十七板石煤矿工作面瓦斯抽采施工设计——42201工作面42201工作面瓦斯抽采施工设计第一节42201工作面概况一、工作面说明1、工作面概况42201工作面属22号煤层，其走向长度1946m，倾向长度160m，工作面位置：位于暗主井北东部。运输顺槽出口联通暗主井，回风顺槽出口联通暗风井。面积：m2。四邻关系：本层周边均为未采区。西南端顶部有12005积水空区、119b01采空区、119b03采空区、219b01采空区。地

7、面为湖龙村水旱田地、水渠及矿区铁路专用线，其西南端地表为湖龙塌陷积水坑，已回填。井下标高-378.97（开切眼上出口）~-576.75（运输顺槽d402#）m，地面标高：25.2~26.9m。2、煤层情况煤层走向北东转南北、倾向北西转正西。煤层倾角11~4/7°。煤层厚度2.60~0.95/1.58m，煤层结构以简单结构为主，中等结构次之，局部为复杂结构。煤体结构：煤层顶部为褐黑色、层状、夹亮煤、透镜体，煤层为黑色、层状、条带状结构、半暗型。煤层由西南向东北逐渐变厚，顶或底常夹有一层沉凝灰岩或凝灰质砂岩。含夹石0~2层，厚度在0.1~＞2.10m间

8、变化，夹石薄时岩性为炭质页岩或泥岩，夹石厚时岩性逐渐衍变为细砂岩。3、构造该工作面周边断层较发育，运输顺槽外缘有FD37正