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厚煤层回采巷道支护技术研究.rar

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    煤层 回采 巷道 支护 技术研究
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    目 录1 矿区概况及井田地质 ........................................................................................................11.1 矿区概述 ..................................................................................................................11.1.1 地理位置、交通情况 ..................................................................................11.1.2 地形及地貌 ..................................................................................................11.1.3 河流及水体 ..................................................................................................11.1.4 气象及地震 ..................................................................................................11.1.5 矿区经济概况 ..............................................................................................21.2 井田地质特征 ..........................................................................................................21.2.1 井田地质构造 ..............................................................................................21.2.2 地层 ..............................................................................................................31.2.3 水文地质 ......................................................................................................41.2.4 地质勘探程度 ..............................................................................................51.3 煤层特征 ..................................................................................................................51.3.1 煤层 ..............................................................................................................51.3.2 煤层顶、底板 ...............................................................................................71.3.3 煤质 ...............................................................................................................71.3.4 瓦斯 ...............................................................................................................81.3.5 煤尘 ...............................................................................................................81.3.6 地温、地压 ...................................................................................................82 井田境界和储量 ................................................................................................................92.1 井田境界 ..................................................................................................................92.2 可采煤层 ..................................................................................................................92.3 井田尺寸 ..................................................................................................................92.4 矿井储量 ................................................................................................................102.4.1 储量计算基础 ............................................................................................102.4.2 安全煤柱留设原则 ....................................................................................102.4.3 矿井地质储量 .............................................................................................102.4.4 矿井工业资源储量 .....................................................................................112.4.5 矿井设计储量 .............................................................................................122.4.6 矿井设计可采储量 .....................................................................................133 矿井工作制度、设计生产能力及服务年限 ...................................................................153.1 矿井工作制度 ........................................................................................................153.2 矿井设计生产能力及服务年限 ............................................................................153.2.1 确定依据 .....................................................................................................153.2.2 矿井设计生产能力 .....................................................................................153.2.3 矿井服务年限 .............................................................................................153.2.4 井型校核 .....................................................................................................154 井田开拓 ..........................................................................................................................174.1 井田开拓的基本问题 ............................................................................................174.1.1 确定井筒形式、数目、位置及坐标 ..........................................................174.1.2 工业场地的位置 .........................................................................................184.1.3 开采水平的确定及采盘区划分 .................................................................184.1.4 主要开拓巷道 .............................................................................................194.1.5 方案比较 .....................................................................................................194.2 矿井基本巷道 ........................................................................................................234.2.1 井筒 .............................................................................................................234.2.2 井底车场及硐室 .........................................................................................264.2.3 主要开拓巷道 .............................................................................................305 准备方式—— 带区巷道布置 ..........................................................................................335.1 煤层地质特征 ........................................................................................................335.1.1 带区位置 .....................................................................................................335.1.2 带区煤层特征 .............................................................................................335.1.3 煤层顶底板岩石构造情况 .........................................................................335.1.4 水文地质 .....................................................................................................335.1.5 地质构造 .....................................................................................................335.1.6 地表情况 .....................................................................................................345.2 带区巷道布置及生产系统 ...................................................................................345.2.1 带区准备方式的确定 .................................................................................345.2.2 带区巷道布置 .............................................................................................355.2.3 带区生产系统 .............................................................................................355.2.4 带区内巷道掘进方法 .................................................................................375.2.5 带区生产能力及采出率 .............................................................................375.3 带区车场选型设计 ................................................................................................386 采煤方法 ..........................................................................................................................396.1 采煤工艺方式 ........................................................................................................396.1.1 带区煤层特征及地质条件 .........................................................................396.1.2 确定采煤工艺方式 .....................................................................................396.1.3 回采工作面参数 .........................................................................................406.1.4 回采工作面破煤、装煤方式 .....................................................................406.1.5 回采工作面支护方式 .................................................................................446.1.6 端头支护及超前支护方式 .........................................................................466.1.7 各工艺过程注意事项 .................................................................................476.1.8 回采工作面正规循环作业 .........................................................................496.2 回采巷道布置 ........................................................................................................526.2.1 回采巷道布置方式 .....................................................................................526.2.2 回采巷道参数 .............................................................................................527 井下运输 ..........................................................................................................................547.1 概述 ........................................................................................................................547.1.1 矿井设计生产能力及工作制度 .................................................................547.1.3 运输距离和运载量 .....................................................................................547.1.4 矿井运输系统 .............................................................................................547.2 带区运输设备选择 ................................................................................................557.2.2 带区运输设备选型及能力验算 .................................................................557.3 大巷运输设备选择 ................................................................................................567.3.1 胶带回风大巷设备选择 .............................................................................567.3.2 辅助运输大巷设备选择 .............................................................................567.3.3 运输设备能力验算 .....................................................................................578 矿井提升 ..........................................................................................................................588.1 矿井提升概述 ........................................................................................................588.2 主副井提升 ............................................................................................................588.2.1 主井提升 .....................................................................................................588.2.2 副井提升设备选型 .....................................................................................588.2.3 井上下人员运送 .........................................................................................599 矿井通风及安全 ..............................................................................................................609.1 矿井概况、开拓方式及开采方法 ........................................................................609.1.1 矿井地质概况 .............................................................................................609.1.2 开拓方式 .....................................................................................................609.1.3 开采方法 .....................................................................................................609.1.4 变电所、充电硐室、火药库 .....................................................................609.1.5 工作制、人数 .............................................................................................609.2 矿井通风系统的确定 ............................................................................................609.2.2、矿井通风方式的选择 ..............................................................................619.2.3、矿井主扇工作方式选择 ..........................................................................629.2.4、带区通风系统的要求 ..............................................................................629.2.5、带区工作面通风方式的选择 ..................................................................629.3 矿井风量计算 ........................................................................................................639.3.1 工作面所需风量的计算 .............................................................................639.3.2 备用面需风量的计算 .................................................................................649.3.3 掘进面需风量 .............................................................................................649.3.4 硐室需风量 .................................................................................................659.3.5 其它巷道所需风量 .....................................................................................659.3.6 矿井总风量 .................................................................................................659.3.7 风量分配 .....................................................................................................669.4 矿井通风阻力计算 ................................................................................................679.4.1 矿井最大阻力路线 .....................................................................................679.4.3 矿井通风总阻力计算 .................................................................................729.4.4 矿井总风阻和等积孔计算 .........................................................................729.5 选择矿井通风设备 ................................................................................................739.5.1 选择主要通风机 .........................................................................................739.5.2 电动机选型 .................................................................................................759.6 安全灾害的预防措施 ...........................................................................................769.6.1 预防瓦斯和煤尘爆炸的措施 .....................................................................769.6.2 预防井下火灾的措施 .................................................................................769.6.3 防水措施 .....................................................................................................7710 设计矿井基本技术经济指标 ........................................................................................78厚煤层回采巷道支护技术研究 ..........................................................................................800 引言 ..................................................................................................................................801 国内外研究现状 ..............................................................................................................811.1 回采巷道支护技术现状 ........................................................................................811.1.1 国外现状 .....................................................................................................811.1.2 国内现状 .....................................................................................................831.1.3 回采巷道支护技术发展趋势 .....................................................................832 厚煤层回采巷道围岩控制 ..............................................................................................832.1 顶煤破碎机理与运移规律 ....................................................................................832.2 回采工作面周围支撑压力分布 ............................................................................832.3 构造应力对巷道稳定性影响 ................................................................................842.4 巷道围岩变形规律 ................................................................................................842.5 道矿压显现规律研究 ............................................................................................842.5.1 全煤动压回采巷道 ...............................................................................
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