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煤矿冲击矿压及防治措施.rar

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    煤矿 冲击 防治 措施
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    摘 要本设计包括三个部分:一般设计部分、专题设计部分和翻译部分。一般部分为东荣一矿 1.2 Mt/a 的新井设计,东荣一矿位于黑龙江省集贤县境内,交通十分便利。井田走向(东西)长平均约 7 km,倾向(南北)长平均约 4km,井田水平面积为 28 km2。主采煤层一层,即 16#煤层,平均倾角 18.0°,厚约 2.96 m。井田工业储量为 335.75 Mt,可采储量 238.67Mt,矿井服务年限为 103a。井田地质条件简单。表土层平均厚度 147 m;矿井正常涌水量为 327 m3/h,最大涌水量为 714m3/h;煤层硬度系数f=2.3,煤质牌号为长焰煤;矿井相对瓦斯涌出量为 3.73 m3/min,属低瓦斯矿井;煤层有自然发火倾向,煤尘无爆炸危险。矿井采用双平硐两水平开拓,采煤方法为走向长壁采煤法。大巷采用带式输送机运煤,辅助运输采用 1.4 t 固定箱式矿车。设计首采区采用采区准备方式,工作面长度 210 m,采用一次采全高采煤法,全部跨落法处理采空区。矿井采用“三八”制作业,两班半生产,半班检修。日进 6 个循环,循环进尺 0.8m,日产量 4412.06 t。矿井采用两翼对角式通风。通风容易时期矿井总需风量 3324 m3/min,矿井通风总阻力 856.2 Pa,风阻 0.321 N·s2/m8,等积孔 3.20 m2,矿井通风容易。矿井通风困难时期矿井总风量 3324 m3/min,矿井通风总阻力 1224 Pa,风阻 0.459 N·s2/m8,等积孔 2.86 m2,矿井通风中等困难。设计矿井的吨煤成本 180 元/t。专题部分题目是矿井冲击矿压及防治措施。翻译部分是从 1981 年至 2011 年煤柱设计智能演变英文原文题目为: The evolution of intelligent coalpillar design: 1981-2011关键词:立井;上下山开采;采区;走向长壁采煤法;两翼对角式ABSTRACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The general design is about a 1.2 Mt/a new underground mine design of Dongrong No.1 Coal Mine that lies in Jixian country Heilongjiang province, the traffic is very convenient. It’s about 7.0 km on the strike and 4.0km on the dip,with the 28.0 km2 total horizontal area. The minable coal seam of this mine is only 2 with an average thickness of 3.50 m and an average dip of 18.0°. The proved reserves of this coal mine are 335.75 Mt and the minable reserves are 238.67 Mt, with a mine life of 103 years .The geological condition of the mine is relatively simple. The normal mine inflow is 100 m3/h and the maximum mine inflow is 200 m3/h. It is anthracite coal spontaneous combustion tendency, and it’s a coal that has no dust explosion.This mine adopts opening up by adits with two mining level. The adopted coal winning method is longwall mining to the dip or to the rise. Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport.Designed first mining district makes use of the method of preparation in mining area , the length of working face is 230 m, which uses fully-mechanized coal mining technology, and fully caving method to deal with goaf. The working system is “three-eight”,with two and half teams mining, and the other overhauling. Every mining team makes three working cycle, with seven working cycle everyday. Advance of working cycle is 0.6 m, and quantity of 4402.06 ton coal is maked everyday.The mine makes use of diagonal ventilation method. At the easy time of mine ventilation, the total air quantity is 3324 m3 per minute, the total mine ventilation resistance is 693.3 Pa, the coefficient of resistance is 0.226 N·s2/m8, equivalent orifice is 3.20 m2. At the difficult time of mine ventilation, the total air quantity is about 3324 m3 per minute, the total mine ventilation resistance is 1396.3 Pa, the coefficient of resistance is 0.459 N·s2/m8, equivalent orifice is 2.80 m2. The cost of the designed mine is 180 yuan per ton.The monographic study is deformation and failure mechanism and roof timbering technique study on roadway of composite roof.The translated academic paper is about implications for stress measurement programs and numerical stability analysis of faults in mines. Its title is that The evolution of intelligent coalpillar design: 1981-2011Keywords:vertical shaft ; up-dip and down-dip minging; mining area ; longwall mining on the strike ; diagonal ventilation目录一般部分1 井田概况及地质特征 .........................................................11.1 井田概况 ..................................................11.1.1 交通位置 ......................................................................................................11.1.2 地形地貌及水系 ..........................................................................................11.1.3 气象 ..............................................................................................................21.1.4 地震 ..............................................................................................................21.1.5 矿区内工农业及煤炭生产、建设情况 ......................................................21.2 地质特征 ..................................................21.2.1 区域地质 ......................................................................................................21.2.2 井田地质 ......................................................................................................21.2.3 岩浆岩 ..........................................................................................................31.2.4 煤层 ..............................................................................................................31.2.5 煤质 ..............................................................................................................31.2.6 水文地质 ......................................................................................................31.2.7 其它开采技术条件 ......................................................................................51.3 对资源条件的评价 ..........................................51.3.1 对井田地质构造的评价 ..............................................................................51.3.2 对煤层赋存条件的评价 ..............................................................................51.3.3 对水文地质条件的评价 ..............................................................................61.3.4 对煤层其它开采条件的评价 ......................................................................71.4 结论 ......................................................72 井田境界及储量 ............................................................82.1 井田境界 ..................................................82.1.1 井田范围 ......................................................................................................82.2 矿井地质储量 ..............................................82.2.1 储量计算基础 ..............................................................................................82.2.2 矿井地质储量计算 ....................................................................................92.2.3 储量计算方法 ..............................................................................................92.3 矿井地质储量 ..............................................92.3.1 储量计算基础 ..............................................................................................92.3.2 矿井地质储量计算 ......................................................................................92.3.3 矿井工业储量计算 ....................................................................................102.4 矿井可采储量 .............................................112.4.1 井田边界断层及内部断层保护煤柱 ........................................................112.4.2 工业广场保护煤柱 ....................................................................................122.4.3 天窗保护煤柱 ............................................................................................132.4.4 风井保护煤柱 ............................................................................................142.4.5 大巷保护煤柱 ............................................................................................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 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 ....................................................................................................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 ....................................................................174.1.2 阶段划分和开采水平的确定 ....................................................................194.1.3 井田划分 ....................................................................................................194.1.4 主要开拓巷道 ............................................................................................204.1.5 开拓方案比较 ............................................................................................204.2 矿井基本巷道 .............................................274.2.1 井筒 ............................................................................................................274.2.2 井底车场及硐室 ........................................................................................314.2.3 大巷 ............................................................................................................324.2.4 巷道支护 ....................................................................................................365 准备方式— 采区巷道布置 ...................................................375.1 煤层地质特征 .............................................375.1.1 采区位置 ....................................................................................................375.1.2 采区煤层特征 ............................................................................................375.1.3 煤层顶底板岩石构造情况 ........................................................................375.1.4 水文地质 ....................................................................................................375.1.5 地质构造 ....................................................................................................375.1.6 地表情况 ....................................................................................................375.2 采区巷道布置及生产系统 ...................................375.2.1 采区准备方式的确定 ................................................................................375.2.2 采区巷道布置 ............................................................................................375.2.3 采区生产系统 ............................................................................................385.2.4 首采区生产能力及采出率 ........................................................................395.3 采区车场选型计算 .........................................405.3.1 采区车场的形式 ........................................................................................405.3.2 采区车场的调车方式 ................................................................................415.3.3 采区主要硐室布置 ....................................................................................416 采煤方法 .................................................................436.1 采煤工艺方式 .............................................436.1.1 采区煤层特征及地质条件 .......................................................................436.1.2 确定采煤工艺方式 ....................................................................................436.1.3 回采工作面参数 ........................................................................................436.1.4 回采工作面采煤机、刮板输送机选型 ....................................................446.1.5 采煤工作面支护方式 ................................................................................466.1.6 端头支护及超前支护方式 ........................................................................486.1.7 各工艺过程注意事项 ................................................................................496.1.8 采煤工作面正规循环作业 ........................................................................506.1.9 16101 首采工作面回采巷道布置 ..........................................................526.2.0 回采巷道参数 ............................................................................................527 井下运输 .................................................................597.1 概述 .....................................................597.1.1 井下运输设计的原始条件和数据 ............................................................597.1.2 运输距离和货载量 ....................................................................................597.1.3 矿井运输系统 ............................................................................................597.2 带区运输设备选择 .........................................607.2.1 设备选型原则 ............................................................................................607.2.2 带区设备的选型 ........................................................................................607.2.3 带区运输能力验算 ....................................................................................627.3 大巷运输设备选择 .........................................638 矿井提升 .................................................................658.1 矿井提升概述 .............................................658.2 主井提升 .................................................658.2.1 箕斗 ............................................................................................................658.2.2 提升机 ........................................................................................................658.2.3 钢丝绳技术特征 ........................................................................................668.2.4 提升能力验算 ............................................................................................668.3 副井提升 .................................................679 矿井通风及安全 ...........................................................699.1 矿井通风系统的选择 .......................................699.1.1 矿井通风系统的基本要求 ........................................................................699.1.2 矿井通风系统的确定 ................................................................................699.1.3 采区通风系统的确定 ................................................................................719.2 矿井风量计算 .............................................729.2.1 通风容易时期和通风困难时期采煤方案的确定 ....................................729.2.2 各用风地点的用风量和矿井总用风量 ....................................................769.2.3 风量分配及风速验算 ................................................................................809.2.4 通风构筑物 ................................................................................................819.3 矿井通风阻力计算 .........................................819.3.1 计算原则 ....................................................................................................829.3.2 矿井最大阻力路线 ....................................................................................829.3.3 矿井通风阻力计算 ....................................................................................829.4 选择矿井通风设备 .........................................839.4.1 选择主要通风机的基本原则 ....................................................................839.4.2 通风机风压的确定 ....................................................................................839.4.3 主要通风机工况点 ....................................................................................859.4.4 主要通风机的选择及风机性能曲线 .......................................................869.4.5 电动机选型 ................................................................................................889.5 安全灾害的预防措施 .......................................889.5.1 预防瓦斯和煤尘爆炸的措施 ....................................................................889.5.2 预防井下火灾的措施 ................................................................................899.5.3 防水措施 ........................................................
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