【正文】 礦井瓦斯抽放系統(tǒng)方向畢業(yè)論文目 錄1 引言 ..............................................................................................................12 礦井概括 ......................................................................................................8 井田概括 ...............................................................................................8 交通位置 .......................................................................................8 地形與地貌及河流 .......................................................................8 氣象 ...............................................................................................9 地震資料 .......................................................................................9 經(jīng)濟概況 .......................................................................................9 井田地質特征 .....................................................................................10 地質構造 .....................................................................................10 含煤地層及煤層 .........................................................................11 煤層瓦斯、自然及爆炸傾向性 .................................................13 井田水文地質 .............................................................................15 井田開拓與開采 .................................................................................17 礦井開拓方式 .............................................................................17 開采方式 .....................................................................................17 掘進方式 .....................................................................................17 通風方式 .....................................................................................183 礦井瓦斯賦存 ............................................................................................18 煤層瓦斯基本參數(shù) .............................................................................18 瓦斯涌出量計算 .................................................................................18 回采工作面瓦斯涌出預測 .........................................................18 掘進工作面瓦斯涌出量預測 .....................................................19 礦井瓦斯儲量及可抽儲量 .................................................................21 礦井瓦斯儲量 .............................................................................21 可抽瓦斯量 .................................................................................224 瓦斯抽放的必要性和可行性論證 ............................................................23 瓦斯抽放的必要性 .............................................................................23 規(guī)定 .............................................................................................23 從礦井通風能力來看瓦斯抽放的必要性 .................................23 防止煤與瓦斯突出看瓦斯抽放的必要性 .................................24 從資源利用和環(huán)保的角度來看瓦斯抽放的必要性 .................25 建立瓦斯抽放系統(tǒng)的可行性 .............................................................25 瓦斯抽放泵站的類型及位置 .............................................................26 目前國內(nèi)主要使用的瓦斯泵類型 .............................................26 從安全角度考慮，抽放瓦斯泵站位置應滿足條件 .................265 礦井瓦斯抽放方案選取 ............................................................................27 瓦斯來源分析 .....................................................................................27 瓦斯抽放方法選擇 .............................................................................27 瓦斯預抽量預計 .................................................................................28 鉆孔及鉆場布置 .................................................................................29 本煤層抽放 .................................................................................29 邊掘邊抽 .....................................................................................31 邊采邊抽 .....................................................................................33 封孔方法 .............................................................................................356 瓦斯抽放系統(tǒng)管路設計 ..........................................................................36 抽放瓦斯管路選擇 .............................................................................36 瓦斯抽放管路系統(tǒng)的選擇原則 .................................................36 抽放管路的選型 .........................................................................36 管網(wǎng)阻力計算 .....................................................................................37 管路敷設及附屬裝置 .........................................................................40 管路敷設要求 .............................................................................40 管路安裝 .....................................................................................41 管路防腐、防銹 .........................................................................42 附屬裝置 .....................................................................................427 瓦斯抽放泵及泵站設施 ............................................................................44 瓦斯抽放泵選型 .................................................................................44 選型原則 .....................................................................................44 抽放泵流量計算 .........................................................................44 抽放瓦斯泵壓力計算 .................................................................44 瓦斯泵的真空度計算（i） .......................................................45 抽放泵類型 .................................................................................45 抽放瓦斯泵房主要附屬設施 .............................................................48 抽放站場地平面布置 .........................................................................50 抽放泵站位置選擇 .....................................................................50 泵站結構 .....................................................................................518 安全措施與操作 ........................................................................................53 抽放系統(tǒng)及抽放泵站安全措施 .........................................................53