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建筑物下采煤关键技术分析.rar

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    中国矿业大学 2012 届本科生毕业设计 第 1 页目 录1 矿区概述及井田地质特征 ................................................................................................11.1 矿区概述 ..................................................................................................................11.1.1 地理位置与交通情况 ...................................................................................11.1.2 矿区气候条件 ...............................................................................................11.1.3 矿区水文情况 ...............................................................................................11.1.4 气象地震 .......................................................................................................21.2 井田地质特征 ..........................................................................................................31.2.1 井田地质构造 ...............................................................................................31.2.3 水文地质特征 ...............................................................................................51.3 煤层特征 ..................................................................................................................51.3.1 煤层 ...............................................................................................................51.3.2 煤质 ...............................................................................................................51.3.3 煤层的围岩性质 ...........................................................................................61.3.4 瓦斯与煤尘 ...................................................................................................61.3.5 煤的自燃 .......................................................................................................62 井田境界和储量 ................................................................................................................72.1 井田境界 ..................................................................................................................72.1.1 井田边界 .......................................................................................................72.1.2 可采煤层 .......................................................................................................72.1.3 井田尺寸 .......................................................................................................82.2 矿井工业储量 ..........................................................................................................82.2.1 储量计算基础 ...............................................................................................82.2.2 安全煤柱留设原则 .......................................................................................82.2.3 矿井地质储量 ...............................................................................................92.2.4 矿井设计储量 .............................................................................................112.2.5 矿井设计可采储量 .....................................................................................112.2.6 工业广场煤柱 .............................................................................................113 矿井工作制度、设计生产能力及服务年限 ...................................................................133.1 矿井工作制度 ........................................................................................................133.2 矿井设计生产能力及服务年限 ............................................................................133.2.1 确定依据 .....................................................................................................133.2.2 矿井设计生产能力 .....................................................................................133.2.3 矿井服务年限 .............................................................................................13中国矿业大学 2012 届本科生毕业设计 第 2 页3.2.4 井型校核 .....................................................................................................144 井田开拓 ..........................................................................................................................164.1 井田开拓的基本问题 ............................................................................................164.1.1 井筒形式的确定 ........................................................................................164.1.2 井筒位置的确定 .........................................................................................174.1.3 工业广场的确定 .........................................................................................184.1.4 开采水平的确定 ......................................................................................184.1.5 主要开拓巷道 .............................................................................................194.1.6 矿井开拓方案比较 .....................................................................................194.2 矿井基本巷道 ........................................................................................................264.2.1 井筒 .............................................................................................................264.2.2 井底车场 .....................................................................................................294.2.3 主要开拓巷道 .............................................................................................315 准备方式—— 采区巷道布置 ...........................................................................................355.1 煤层地质特征 ........................................................................................................355.1.1 采区位置 .....................................................................................................355.1.2 采区煤层特征 .............................................................................................355.1.3 煤层顶底板岩石构造情况 .........................................................................355.1.4 地表情况 .....................................................................................................355.2 采区巷道布置及生产系统 ....................................................................................355.2.1 采区位置及范围 .........................................................................................355.2.2 采煤方法及工作面长度的确定 ..................................................................355.2.3 确定采区各种巷道的尺寸、支护方式及通风方式 ..................................355.2.4 煤柱尺寸的确定 .........................................................................................365.2.5 采区巷道的联络方式 .................................................................................365.2.6 采区接替顺序 .............................................................................................365.2.7 采区生产系统 .............................................................................................365.2.8 采区内巷道掘进方法 .................................................................................375.2.9 采区生产能力及采出率 .............................................................................375.3 采区车场选型设计 ................................................................................................385.3.1 确定采区车场形式 .....................................................................................385.3.2 采区主要硐室布置 .....................................................................................406 采煤方法 ..........................................................................................................................426.1 采煤工艺方式 ........................................................................................................426.1.1 采区煤层特征及地质条件 .........................................................................426.1.2 确定采煤工艺方式 .....................................................................................426.1.3 回采工作面参数 .........................................................................................43中国矿业大学 2012 届本科生毕业设计 第 3 页6.1.4 回采工作面破煤与装煤方式 ......................................................................446.1.5 回采工作面运煤方式 .................................................................................456.1.6 回采工作面支护方式 .................................................................................466.1.7 采放比、放煤步距、放煤方式 ..................................................................486.1.8 各工艺过程注意事项 .................................................................................496.1.9 回采工作面正规循环作业 .........................................................................506.2 回采巷道布置 ........................................................................................................536.2.1 回采巷道布置方式 .....................................................................................536.2.2 回采巷道参数 .............................................................................................537 井下运输 ..........................................................................................................................567.1 概述 ........................................................................................................................567.1.1 井下运输设计的原始条件和数据 ..............................................................567.1.2 运输距离和货载量 .....................................................................................567.1.3 矿井运输系统 .............................................................................................577.2 采区运输设备选择 ................................................................................................587.2.1 设备选型原则 .............................................................................................587.2.2 采区设备的选型 .........................................................................................587.2.3 采区辅助运输设备选型 .............................................................................607.3 大巷运输设备选择 ................................................................................................627.3.1 运输大巷设备选型 .....................................................................................627.3.2 辅助运输大巷设备选型 .............................................................................638 矿井提升 ..........................................................................................................................658.1 概述 ........................................................................................................................658.2 主副井提升 ............................................................................................................658.2.1 主井提升 .....................................................................................................658.2.2 副井提升设备选型 .....................................................................................699 矿井通风及安全 ..............................................................................................................719.1 矿井通风系统选择 ................................................................................................719.1.1 矿井概况 .....................................................................................................719.1.2 矿井通风系统的基本要求 .........................................................................719.1.3 矿井通风方式的确定 .................................................................................719.1.4 主要通风机工作方式选择 .........................................................................729.1.5 采区通风系统的要求 .................................................................................739.1.6 工作面通风方式的选择 .............................................................................739.1.7 回采工作面进回风巷道的布置 ..................................................................749.2 采区及全矿所需风量 ...........................................................................................749.2.1 采煤工作面实际需要风量 ........................................................................74中国矿业大学 2012 届本科生毕业设计 第 4 页9.2.2 备用面需风量的计算 ................................................................................769.2.3 掘进工作面需风量 ....................................................................................769.2.4 硐室需风量 .................................................................................................779.2.5 其它巷道所需风量 .....................................................................................779.2.6 矿井总风量 .................................................................................................779.2.7 风量分配 .....................................................................................................789.3 矿井通风总阻力计算 ............................................................................................799.3.1 矿井通风总阻力计算原则 .........................................................................799.3.2 确定矿井通风容易和困难时期 ..................................................................799.3.3 矿井最大阻力路线 .....................................................................................799.3.4 矿井通风阻力计算 .....................................................................................819.3.5 矿井通风总阻力 .........................................................................................829.3.6 总等积孔 .....................................................................................................839.4 矿井通风设备选型 ................................................................................................849.4.1 主要通风机选型 .........................................................................................849.4.2 自然风压 .....................................................................................................849.4.3 主要通风机工作风压 .................................................................................849.4.4 初选通风机 .................................................................................................859.5 防止特殊灾害的安全措施 ....................................................................................879.5.1 瓦斯管理措施 .............................................................................................879.5.2 煤尘的防治 .................................................................................................889.5.3 预防井下火灾的措施 .................................................................................889.5.4 防水措施 .....................................................................................................8810 矿井基本技术经济指标 ................................................................................................89建筑物下采煤关键技术分析 ..............................................................................................93摘 要: ..............................................................................................................................931 概 述 ................................................................................................................................932 建下采煤技术体系 ...........................................................................................................932.1 以支撑煤柱为核心的技术体系 ............................................................................932.1.2 条带式开采 .................................................................................................932.1.2 房柱式开采 .........
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