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祁东煤矿工作面压架突水机理与治理毕业设计说明书.rar

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    祁东 煤矿 工作面 压架突水 机理 治理 毕业设计 说明书
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    第 I 页目 录一般部分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 交通条件 ........................................................................................................11.1.3 地形地貌 ........................................................................................................11.1.4 矿区气候条件 ................................................................................................11.2 井田地质特征 ..........................................................................................................11.2.1 井田地质构造 ................................................................................................11.2.2 井田勘探程度 ................................................................................................51.2.3 水文地质条件 ................................................................................................51.3 煤层特征 ..................................................................................................................81.3.1 煤层 ................................................................................................................81.3.2 煤层顶底板 ....................................................................................................81.3.3 煤的特征 ........................................................................................................91.3.4 瓦斯、地温等 ................................................................................................92 井田境界与储量 ................................................................................................................102.1 井田境界 ................................................................................................................102.1.1 井田范围 ......................................................................................................102.1.2 开采界线 ......................................................................................................102.1.3 井田尺寸 ......................................................................................................102.2 矿井工业储量 ........................................................................................................112.2.1 储量计算基础 ..............................................................................................112.2.2 矿井地质储量计算 ......................................................................................112.2.3 工业储量计算 ..............................................................................................122.3 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 ......................................................................................142.3.3 断层保护煤柱 ..............................................................................................152.3.4 风井保护煤柱 ..............................................................................................152.3.5 防水保护煤柱 ..............................................................................................152.3.6 大巷保护煤柱 ..............................................................................................162.3.7 矿井可采储量 ..............................................................................................163 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 ............................................................................17第 II 页3.2.1 确定依据 ......................................................................................................173.2.2 矿井设计生产能力 ......................................................................................173.2.3 矿井服务年限 ..............................................................................................173.2.4 井型校核 ......................................................................................................184 井田开拓 ............................................................................................................................194.1 井田开拓的基本问题 ............................................................................................194.1.1 确定井筒形式、数目、位置及坐标 ..........................................................194.1.2 井筒位置的确定及采(带)区划分 ..........................................................214.1.3 工业场地的位置 ..........................................................................................214.1.4 开采水平的确定及采盘区划分 ..................................................................224.1.5 主要开拓巷道 .............................................................................................224.1.6 方案比较 ......................................................................................................224.2 矿井基本巷道 ........................................................................................................314.2.2 井底车场及硐室 ..........................................................................................354.2.3 主要开拓巷道 ..............................................................................................375 准备方式-采区巷道布置 ................................................................................................415.1 煤层地质特征 ........................................................................................................415.1.1 采区位置 ......................................................................................................415.1.2 采区煤层特征 ..............................................................................................415.1.3 煤层顶底板岩石构造情况 ..........................................................................415.1.4 水文地质 ......................................................................................................415.1.5 地质构造 ......................................................................................................415.1.6 地表情况 ......................................................................................................415.2 采区巷道布置及生产系统 ....................................................................................425.2.1 采区位置及范围 ..........................................................................................425.2.2 采煤方法及工作面长度的确定 ..................................................................425.2.3 确定采区各种巷道的尺寸、支护方式及通风方式 ..................................425.2.4 煤柱尺寸的确定 ..........................................................................................425.2.5 采区巷道的联络方式 ..................................................................................425.2.6 采区接替顺序 ..............................................................................................425.2.7 采区生产系统 ..............................................................................................435.2.8 采区内巷道掘进方法 ..................................................................................445.2.9 采区生产能力及采出率 ..............................................................................445.3 采区车场选型设计 ................................................................................................455.3.1 确定采区车场形式 ......................................................................................455.3.2 采区主要硐室布置 ......................................................................................466 采煤方法 ............................................................................................................................486.1 采煤工艺方式 ........................................................................................................486.1.1 采区煤层特征及地质条件 ..........................................................................48第 III 页6.1.2 确定采煤工艺方式 ......................................................................................486.1.3 回采工作面参数 ..........................................................................................496.1.4 回采工作面采煤机、刮板输送机选型 ......................................................496.1.5 采煤工作面支护方式 ..................................................................................516.1.6 端头支护及超前支护方式 ..........................................................................536.1.7 各工艺过程注意事项 ..................................................................................556.1.8 回采工作面正规循环作业 ..........................................................................566.2 回采巷道布置 ........................................................................................................586.2.1 回采巷道布置方式 ......................................................................................586.2.2 回采巷道参数 ..............................................................................................587 井下运输 ............................................................................................................................617.1 概述 ........................................................................................................................617.1.1 井下运输设计的原始条件和数据 ..............................................................617.1.2 运输距离和货载量 ......................................................................................617.1.3 矿井运输系统 ..............................................................................................627.2 采区运输设备选择 ................................................................................................627.2.1 设备选型原则 ..............................................................................................627.2.2 采区运输设备选型及能力验算 ..................................................................627.3 大巷运输设备选择 ................................................................................................647.3.1 主运输大巷设备选择 ..................................................................................647.3.2 辅助运输大巷设备选择 ..............................................................................657.3.1 选择电机车 ..................................................................................................657.3.2 设备选择 ......................................................................................................657.3.3 运输设备能力验算 ......................................................................................668 矿井提升 ............................................................................................................................688.1 矿井提升概述 ........................................................................................................688.2 主副井提升 ............................................................................................................688.2.1 主井提升 ......................................................................................................688.2.2 副井提升 ......................................................................................................719 矿井通风与安全 ................................................................................................................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 矿井通风系统的确定 ..................................................................................739.1.3 采区通风系统的确定 ..................................................................................759.2 矿井风量计算 .........................................................................................................769.2.1 通风容易时期和通风困难时期采煤方案的确定 ......................................769.2.2 各用风地点的用风量和矿井总用风量 ......................................................779.2.3 风量分配及风速验算 ..................................................................................819.2.4 通风构筑物 ..................................................................................................82第 IV 页9.3 矿井通风阻力计算 ................................................................................................839.3.1 计算原则 ......................................................................................................839.3.2 矿井最大阻力路线 ......................................................................................839.3.3 矿井通风阻力计算 ......................................................................................839.4 选择矿井通风设备 ................................................................................................879.4.1 选择主要通风机的基本原则 ......................................................................879.4.2 通风机风压的确定 ......................................................................................889.4.3 主要通风机工况点 ......................................................................................899.4.4 主要通风机的选择及风机性能曲线 .........................................................909.4.5 电动机选型 ..................................................................................................929.6 安全灾害的预防措施 ............................................................................................929.6.1 预防瓦斯和煤尘爆炸的措施 ......................................................................929.6.2 预防井下火灾的措施 ..................................................................................939.6.3 防水措施 ......................................................................................................9310 矿井基本技术经济指标 ..................................................................................................94专题部分 祁东煤矿工作面压架突水机理 与治理 ...........................................................971 绪论 ....................................................................................................................................971.1 问题提出 ................................................................................................................971.2 国内外研究现状 ....................................................................................................971.2.1 松散承压含水层采煤的研究 ......................................................................971.2.2 工作面压架突水的研究 ..............................................................................992 松散承压含水层的压架突水机理 ..................................................................................1002.1 松散承压含水层载荷传递机理 ..........................................................................1002.2 松散承压含水层对关键层复合破断的影响 ......................................................1012.3 松散承压含水层下压架机理 ..............................................................................1032.4 松散承压含水层下突水机理 ..............................................................................1042.4.1 关键层复合破断对导水裂隙的影响 ........................................................1042.4.2 松散承压含水层下保护煤柱留设 ...............
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