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锚网支护巷道顶板事故类型分析.rar

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    支护 巷道 顶板 事故 类型 分析
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    目 录1 矿区概述及井田地质特征 .........................................................................................................11.1 矿区概述 ...............................................................................................................................11.1.1 矿区地理位置 ...............................................................................................................11.1.2 矿区气候条件 ...............................................................................................................11.1.3 矿区的水文情况 ...........................................................................................................11.2 井田地质特征 ......................................................................................................................31.2.1 煤系地层 .......................................................................................................................31.3 煤层特征 ..............................................................................................................................71.3.1 可采煤层 .......................................................................................................................71.3.2 煤的特征 .......................................................................................................................81.3.3 瓦斯,煤尘及自燃 .....................................................................................................112 井田境界与储量 .......................................................................................................................122.1 井田境界 .............................................................................................................................122.2 矿井储量计算 ....................................................................................................................122.2.1 构造类型 ......................................................................................................................122.2.2 矿井工业储量 .............................................................................................................122.2.3 工业储量计算 ..............................................................................................................122.2.4 矿井可采储量 ..............................................................................................................142.2.5 工业广场煤柱 ..............................................................................................................153 矿井工作制度、设计生产能力及服务年限 ...........................................................................173.1 矿井工作制度 ....................................................................................................................173.2 矿井设计生产能力及服务年限 .........................................................................................173.2.1 确定依据 ......................................................................................................................173.2.3 矿井服务年限 ..............................................................................................................174 井田开拓 ...................................................................................................................................194.1 井田开拓的基本问题 .........................................................................................................194.1.1 井筒形式的确定 .........................................................................................................194.1.2 井筒位置的确定采(带)区划分 .............................................................................214.1.3 工业场地的位置 .........................................................................................................214.1.4 开采水平的确定及带(采)区划分 ..........................................................................224.1.5 矿井开拓方案比较 .....................................................................................................224.2 矿井基本巷道 .....................................................................................................................264.2.1 井筒 ..............................................................................................................................264.2.2 开拓巷道 ......................................................................................................................274.2.3 井底车场及硐室 ..........................................................................................................275 准备方式—— 带区巷道布置 .................................................................................................365.1 煤层地质特征 .....................................................................................................................365.1.1 带区位置 ......................................................................................................................365.1.2 带区煤层特征 ..............................................................................................................365.1.3 煤层顶底板岩石构造情况 ..........................................................................................365.1.4 水文地质 ......................................................................................................................365.2 带区巷道布置及生产系统 .................................................................................................365.2.1 带区准备方式的确定 ..................................................................................................365.2.2 带区巷道布置 ..............................................................................................................375.2.3 带区生产系统 ..............................................................................................................385.2.4 带区内巷道掘进方法 ..................................................................................................395.2.5 带区生产能力及采出率 ..............................................................................................405.3 带区车场选型设计 .............................................................................................................416 采煤方法 .................................................................................................................................426.1 采煤工艺方式 .....................................................................................................................426.1.1 带区煤层特征及地质条件 ..........................................................................................426.1.2 回采工作面长度的确定 .............................................................................................426.1.3 工作面的推进方向和推进度 .....................................................................................436.1.4 综采工作面的设备选型及配套 .................................................................................436.1.5 各工艺过程注意事项 .................................................................................................516.1.6 工作面端头支护和超前支护 .....................................................................................526.1.7 循环图表、劳动组织、主要技术经济指标 ..............................................................536.1.8 综合机械化采煤过程中应注意事项 .........................................................................586.2 回采巷道布置 .....................................................................................................................596.2.1 回采巷道布置方式 ......................................................................................................596.2.2 回采巷道参数 ..............................................................................................................597 井下运输 ...................................................................................................................................617.1 概述 .....................................................................................................................................617.2 带区运输设备选择 .............................................................................................................627.2.2 带区运输设备选型及能力验算 ..................................................................................627.3 大巷运输设备选择 .............................................................................................................637.3.1 主运输大巷设备选择 ..................................................................................................637.3.2 辅助运输大巷设备选择 ..............................................................................................638 矿井提升 ...................................................................................................................................658.1 矿井提升概述 .....................................................................................................................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 ......................................................................................................668.2.3 井上下人员运送 ..........................................................................................................689 矿井通风及安全 .......................................................................................................................699.1 矿井地质、开拓、开采概况 .............................................................................................699.1.1 矿井地质概况 ..............................................................................................................699.1.2 开拓方式 ......................................................................................................................699.1.3 开采方法 ......................................................................................................................699.1.4 变电所、充电硐室、火药库` .....................................................................................699.1.5 工作制、人数 ..............................................................................................................699.2 矿井通风系统的确定 .........................................................................................................699.2.1 矿井通风系统的基本要求 ..........................................................................................699.2.2 矿井通风方式的选择 ..................................................................................................709.2.3 矿井通风方法的选择 ..................................................................................................719.2.4 带区通风系统的要求 ..................................................................................................729.2.5 带区通风方式的确定 ..................................................................................................729.3 矿井风量计算 .....................................................................................................................739.3.1 通风容易时期和通风困难时期采煤方案的确定 ......................................................739.3.2 各用风地点的用风量和矿井总用风量 ......................................................................749.3.3 风量分配 ......................................................................................................................779.4 矿井阻力计算 .....................................................................................................................789.4.1 计算原则 ......................................................................................................................789.4.2 矿井最大阻力路线 ......................................................................................................789.4.3 计算矿井摩擦阻力和总阻力: ..................................................................................799.5 选择矿井通风设备 .............................................................................................................839.5.1 选择主要通风机 ..........................................................................................................839.5.2 电动机选型 ..................................................................................................................869.6 安全灾害的预防措施 .........................................................................................................879.6.1 预防瓦斯和煤尘爆炸的措施 ......................................................................................879.6.2 预防井下火灾的措施 ..................................................................................................879.6.3 防水措施 ......................................................................................................................8710 设计矿井基本技术经济指标 .................................................................................................89锚网支护巷道顶板事故类型分析 ...............................................................................................910 引言 ...........................................................................................................................................911 国内外锚杆支护的发展现状 ....................................................................................................931.1 锚网支护技术现状 .............................................................................................................931.1.1 国外现状 .....................................................................................................................931.1.2 国内发展现状 .............................................................................................................951.1.3 技术特点 .....................................................................................................................962 锚杆支护原理 ...........................................................................................................................982.1 锚杆在岩体中的作用机理 .................................................................................................982.1.1 硬岩 ..............................................................................................................................982.1.2 软岩 .............................................................................................................................982.1.3 土砂围岩 .....................................................................................................................982.2 锚杆在局部围岩中的作用机理 ........................................................................................982.2.1 悬吊岩块 .....................................................................................................................982.2.2 产生内压和拱效果 .....................................................................................................982.2.3 组合梁作用 .................................................................................................................992.2.4 减小跨度作用 .............................................................................................................992.2.5 围岩补强加固作用 .....................................................................................................992.3 锚网支护参数的确定 ........................................................................................................993 锚网支护设计方法 ....................................................................................................
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