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松软煤层回采巷道锚杆支护技术.rar

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    松软 煤层 回采 巷道 支护 技术
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    中国矿业大学 2012 届本科生毕业设计 第 1 页目 录一般部分1 矿井概况与井田特征 .......................................................................................................11.1 矿区概述 ................................................................................................................11.1.1 地理位置 .....................................................................................................11.1.2 地形、地貌 .................................................................................................11.1.3 交通条件 .....................................................................................................11.1.4 矿区周围环境资源 .....................................................................................11.1.5 矿区气候条件 .............................................................................................21.1.6 水文情况 .....................................................................................................21.2 井田地质特征 ........................................................................................................21.2.1 井田地形 .....................................................................................................21.2.2 井田煤系地层 .............................................................................................21.2.3 井田地质构造 .............................................................................................51.2.4 井田水文地质特征 .....................................................................................51.3 煤层特征 ................................................................................................................61.3.1 煤层埋藏条件 .............................................................................................61.3.2 煤层围岩性质 .............................................................................................71.3.3 煤质特征 .....................................................................................................81.3.4 瓦斯、煤尘和煤的自燃倾向 .....................................................................82 井田境界与储量 ...............................................................................................................92.1 井田境界 ................................................................................................................92.1.1 井田范围 .....................................................................................................92.1.2 开采界限 .....................................................................................................92.1.3 井田尺寸 .....................................................................................................92.2 矿井工业储量 ......................................................................................................102.2.1 储量计算基础 ...........................................................................................102.2.2 矿井地质储量计算 ...................................................................................102.2.3 矿井工业储量计算 ...................................................................................122.2.4 矿井设计可采储量 ...................................................................................132.3 矿井可采储量 ......................................................................................................132.3.1 井田边界保护煤柱 ...................................................................................132.3.2 工业广场保护煤柱 ...................................................................................132.3.3 断层和井筒保护煤柱 ...............................................................................142.3.4 保护煤柱损失量汇总 ...............................................................................143 矿井工作制度、设计生产能力及服务年限 .................................................................16中国矿业大学 2012 届本科生毕业设计 第 2 页3.1 矿井工作制度 ......................................................................................................163.2 矿井设计生产能力及服务年限 ..........................................................................163.2.1 确定依据 ...................................................................................................163.2.2 矿井设计生产能力 ...................................................................................163.2.3 矿井服务年限 ...........................................................................................163.2.4 井型校核 ...................................................................................................174 井田开拓 .........................................................................................................................184.1 井田开拓的基本问题 ..........................................................................................184.1.1 井筒形式、数目、位置及坐标 ...............................................................184.1.2 工业场地的位置 .......................................................................................204.1.3 开采水平的确定及带区的划分 ...............................................................204.1.4 主要开拓巷道 ...........................................................................................204.1.5 开拓方案比较 ...........................................................................................214.2 矿井基本巷道 ......................................................................................................284.2.1 井筒 ...........................................................................................................284.2.2 井底车场及硐室 .......................................................................................324.2.3 大巷 ...........................................................................................................344.2.4 巷道支护 ...................................................................................................385 准备方式— 盘区巷道布置 .............................................................................................395.1 煤层地质特征 ......................................................................................................395.1.1 盘区位置 ...................................................................................................395.1.2 盘区煤层特征 ...........................................................................................395.1.3 煤层顶底板岩石构造情况 .......................................................................395.1.4 水文地质 ...................................................................................................395.1.5 地质构造 ...................................................................................................395.2 盘区巷道布置及生产系统 ..................................................................................405.2.1 盘区准备方式的确定 ...............................................................................405.2.2 盘区位置及范围 .......................................................................................405.2.3 采煤方法及工作面长度确定 ...................................................................405.2.4 确定区段各种巷道的尺寸、支护方式及通风、运输方式 ...................405.2.5 煤柱尺寸的确定 .......................................................................................415.2.6 区段接替顺序 ...........................................................................................415.2.7 盘区生产系统 ...........................................................................................415.2.8 盘区内巷道掘进方法 ...............................................................................425.2.9 盘区生产能力及采出率 ...........................................................................425.3 盘区车场选型计算 ..............................................................................................445.3.1 盘区车场的形式 .......................................................................................445.3.2 盘区车场的调用形式 ...............................................................................456 采煤方法 .........................................................................................................................47中国矿业大学 2012 届本科生毕业设计 第 3 页6.1 采煤工艺方式 ......................................................................................................476.1.1 盘区煤层特质及地质条件 .......................................................................476.1.2 确定采煤工艺方式 ...................................................................................476.1.3 回采工作面参数 .......................................................................................476.1.4 回采工作面采煤机、刮板输送机选型 ...................................................486.1.5 采煤工作面支护方式 ...............................................................................506.1.6 端头支护及超前支护方式 .......................................................................526.1.7 各工艺过程注意事项 ...............................................................................536.1.8 采煤工作面正规循环作业 .......................................................................556.2 3201 首采工作面回采巷道布置 .........................................................................576.2.1 回采巷道布置方式 ...................................................................................576.2.2 回采巷道参数 ...........................................................................................577 井下运输 .........................................................................................................................637.1 概述 ......................................................................................................................637.1.1 井下运输设计的原始条件和数据 ...........................................................637.1.2 运输距离和货载量 ...................................................................................637.1.3 矿井运输系统 ...........................................................................................637.2 盘区运输设备选择 ..............................................................................................647.2.1 设备选型原则 ...........................................................................................647.2.2 盘区设备的选型 .......................................................................................647.2.3 盘区运输能力验算 ...................................................................................667.3 大巷运输设备选择 ..............................................................................................678 矿井提升 .........................................................................................................................698.1 矿井提升概述 ......................................................................................................698.2 主井提升 ..............................................................................................................698.2.1 箕斗 ...........................................................................................................698.2.2 提升机 .......................................................................................................698.2.3 钢丝绳技术特征 .......................................................................................708.2.4 提升能力验算 ...........................................................................................708.3 副井提升 ..............................................................................................................719 矿井通风及安全 .............................................................................................................739.1 矿井通风系统的选择 ..........................................................................................739.1.1 矿井通风系统的基本要求 .......................................................................739.1.2 矿井通风方式的选择 ...............................................................................739.1.3 矿井主要通风机工作方式的选择 ...........................................................749.1.4 采区通风系统的要求 ...............................................................................749.1.5 工作面通风方式的选择 ...........................................................................759.2 矿井风量计算 ......................................................................................................769.2.1 矿井风量计算方法 ...................................................................................76中国矿业大学 2012 届本科生毕业设计 第 4 页9.2.2 采煤工作面所需风量计算 .......................................................................769.2.3 备用面需风量计算 ...................................................................................779.2.4 掘进工作面需风量计算 ...........................................................................779.2.5 硐室需风量计算 .......................................................................................789.2.6 其他巷道需风量 .......................................................................................799.2.7 矿井总风量计算 .......................................................................................799.2.8 风量分配及风速验算 ...............................................................................799.3 矿井通风阻力计算 ..............................................................................................819.3.1 容易和困难时期矿井最大阻力路线 .......................................................819.3.2 矿井通风阻力计算 ...................................................................................859.3.3 矿井通风总阻力计算 ...............................................................................869.3.4 矿井总风阻和等积孔计算 .......................................................................869.4 选择矿井通风设备 ..............................................................................................879.4.1 选择主要通风机 .......................................................................................879.4.2 电动机选型 ...............................................................................................909.5 安全灾害的预防措施 ..........................................................................................909.5.1 预防瓦斯和煤尘爆炸的措施 ...................................................................909.5.2 预防井下火灾的措施 ...............................................................................919.5.3 防水措施 ...................................................................................................9110 矿井基本技术经济指标 ...............................................................................................92参考文献 ...............................................................................................................................93专题部分 松软煤层回采巷道锚杆支护技术 ...............................................941 前言 .........................................................................................................................942 国内外锚杆支护研究现状及存在问题 .................................................................942.1 国内研究 ......................................................................................................942.2 国外研究 ......................................................................................................972.3 关于锚杆的支护理论 ..................................................................................983 松软煤层回采巷道锚杆支护技术 .........................................................................993.1 锚杆支护作用机理
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