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深井软岩巷道支护原理与技术.rar

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    深井 巷道 支护 原理 技术
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    摘 要本设计包括三个部分:一般部分、专题部分和翻译部分。一般部分为永煤集团城郊煤矿 300 万 t/a 新井设计。全篇共分为十个部分:矿井概况及井田地质特征、井田境界及储量、矿井工作制度、设计生产能力及服务年限、井田开拓、准备方式、采煤方法、井下运输、矿井提升、矿井通风与安全和矿井主要经济技术指标。城郊矿位于河南省永城市境内。井田南北长约 12km,东西宽约 11km,勘探面积约103km2。井田内可采煤层为二 2 煤层,其赋存稳定,平均厚度 3.5m,煤层最小倾角 4°,最大倾角 15°,平均倾角为 8°。井田内工业储量为 4.4855 亿 t,可采储量为 3.3059 亿 t。矿井平均涌水量为 180~220 m3/h,井田中各煤层沼气含量一般小于 0.5cm3/g,属低沼气矿井。各煤层均无煤尘爆炸危险。各煤层均属不自燃发火煤层;地温一般低于 30℃。城郊煤矿年设计生产能力为 300 万 t/a,服务年限为 78.7 年。采用立井开拓,石门暗斜井延深的开拓方式。工作制度为“ 三八” 制。第一水平标高为-500m,第二水平标高为-860m。矿井采用综合机械化采煤法,一次采全高。矿井布置两个综采工作面,面长 200m。煤炭通过胶带输送机运输。矿井通风方式为分区域式通风。专题部分:专题题目为“ 深井软岩巷道支护原理与技术” 。翻译部分:翻译题目为“ 巷道锚杆支护设计视为均质结构的数值方法” 。关键词:立井;暗斜井;带区;胶带运输;分区域式ABSTRACTThis design contains three parts: the general,the special subject and the translation.The general part is a new design of Chengjiao Mine in Yongcheng coal dark inclined;strip district; belt transport; regional目 录一般部分1 矿井概述及井田地质特征 ............................................................................................................11.1 矿区概述 .................................................................................................................................11.1.1 矿区地理位置与交通 ...................................................................................................11.1.2 地形地貌 .......................................................................................................................11.1.3 主要河流 .......................................................................................................................21.2 井田地质特征 .........................................................................................................................21.2.1 井田勘探程度及地质报告的审批情况 .......................................................................21.2.2 井田地层与地质构造 ...................................................................................................41.2.3 水文地质条件 ...............................................................................................................51.3 煤层特征 .................................................................................................................................71.3.1 煤层埋藏条件 ...............................................................................................................71.3.2 煤层围岩性质 ...............................................................................................................81.3.3 煤的特征 .......................................................................................................................81.3.4 其它开采地质条件 .......................................................................................................92 井田境界与储量 ..........................................................................................................................102.1 井田境界 ...............................................................................................................................102.1.1 井田范围 .....................................................................................................................102.1.2 井田尺寸 .....................................................................................................................102.2 矿井工业储量计算 ...............................................................................................................102.2.1 储量计算依据 .............................................................................................................102.2.2 矿井地质资源量 .........................................................................................................102.2.3 矿井工业储量计算 .....................................................................................................112.3 矿井可采储量 .......................................................................................................................112.3.1 安全煤柱留设原则 .....................................................................................................112.3.2 矿井永久保护煤柱损失量 .........................................................................................122.3.3 矿井可采储量 .............................................................................................................143 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 矿井设计生产能力及服务年限确定依据 .................................................................153.2.2 矿设计生产能力 .........................................................................................................153.2.3 矿井服务年限 .............................................................................................................153.2.4 井型校核 .....................................................................................................................164 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、形状和面积 .................................................................................194.1.3 阶段划分及开采水平的确定 .....................................................................................194.1.4 运输大巷和井底车场的布置 .....................................................................................204.1.5 矿井开拓延伸方案 .....................................................................................................204.1.6 开采顺序 ..................................................................................................................214.1.7 方案比较 .....................................................................................................................214.2 矿井基本巷道 ....................................................................................................................294.2.1 井筒 ..........................................................................................................................294.2.2 井底车场及硐室 ......................................................................................................304.2.3 主要开拓巷道 ..........................................................................................................324.2.4 巷道支护 ..................................................................................................................335 准备方式—— 带区巷道布置 ......................................................................................................395.1 煤层地质特征 .......................................................................................................................395.1.1 带区位置 .....................................................................................................................395.1.2 带区煤层特征 .............................................................................................................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 .....................................................................................................................395.1.6 地表情况 .....................................................................................................................395.2 带区巷道布置及生产系统 ...................................................................................................395.2.1 带区准备方式的确定 .................................................................................................395.2.2 带区巷道布置 .............................................................................................................405.2.3 带区生产系统 .............................................................................................................405.2.4 带区生产能力及采出率 .............................................................................................415.3 带区车场选型计算 ...............................................................................................................435.3.1 带区车场的形式 .........................................................................................................435.3.2 带区车场的调车方式 .................................................................................................435.3.3 带区主要硐室布置 .....................................................................................................436 采煤方法 ........................................................................................................................................456.1 采煤工艺方式 .......................................................................................................................456.1.1 带区煤层特征及地质条件 .........................................................................................456.1.2 确定采煤工艺方式 .....................................................................................................456.1.3 回采工作面参数 .........................................................................................................456.1.4 回采工艺及工作面设备选型 .....................................................................................466.1.5 采煤工作面支护方式 .................................................................................................496.1.6 端头支护及超前支护方式 .........................................................................................516.1.7 各工艺过程注意事项 .................................................................................................526.1.8 回采工作面正规循环作业 .........................................................................................536.2 回采巷道布置 .......................................................................................................................566.2.1 回采巷道布置方式 .....................................................................................................566.2.2 回采巷道参数 .............................................................................................................567 井下运输 ........................................................................................................................................617.1 概述 .......................................................................................................................................617.1.1 井下运输设计的原始条件与数据 .............................................................................617.1.2 运输距离和货载量 .....................................................................................................617.1.3 井下运输系统 .............................................................................................................617.2 带区运输设备选型 ...............................................................................................................627.2.1 设备选型原则 .............................................................................................................627.2.2 带区运输设备的选型及能力验算 .............................................................................627.3 大巷运输设备选型 ...............................................................................................................657.3.1 运煤设备 .....................................................................................................................657.3.2 辅助运输设备选择 .....................................................................................................658 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 .....................................................................................................................709 矿井通风及安全 ............................................................................................................................739.1 矿井通风系统选择 ...............................................................................................................739.1.1 矿井概述 .....................................................................................................................739.1.2 矿井通风系统的确定 .................................................................................................739.1.3 带区通风系统的确定 .................................................................................................759.1.4 矿井通风容易与困难时期的确定 .............................................................................769.2 带区及全矿所需风量 ...........................................................................................................819.2.1 采煤工作面实际需风量 .............................................................................................819.2.2 掘进工作面实际需风量 .............................................................................................829.2.3 硐室需风量 .................................................................................................................839.2.4 其它巷道需风量 .........................................................................................................849.2.5 矿井所需总风量 .........................................................................................................849.2.6 风量分配及风速验算 .................................................................................................849.3 全矿通风阻力的计算 ...........................................................................................................859.3.1 矿井通风总阻力计算原则 .........................................................................................859.3.2 矿井最大阻力路线 .....................................................................................................859.3.3 矿井通风阻力计算 .....................................................................................................869.3.4 矿井通风总阻力 .........................................................................................................879.4 矿井通风设备选型 ...............................................................................................................889.4.1 主要通风机选型 .........................................................................................................889.4.2 电动机选型 .................................................................................................................919.4.3 主要通风机附属装置 .................................................................................................919.5 防治特殊灾害的安全措施 ..................................................................................
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