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回采巷道复合顶板破坏机理与支护技术.rar

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    中 国 矿 业 大 学本 科 生 毕 业 设 计姓 名: 刘鳗萱 学 号: 01080243 学 院: 矿业工程学院 专 业: 采矿工程 设计题目: 东荣一矿 1.5 Mt/a 新井设计 专 题: 回采巷道复合顶板破坏机理与支护技术 指导教师: 荆升国 职 称: 讲 师 2012 年 6 月 徐州中国矿业大学毕业设计任务书学院 矿业工程学院 专业年级 采矿工程 2008 级 学生姓名 刘鳗萱 任 务 下 达 日 期 : 2012 年 1 月 8 日毕业设计日期:2012 年 3 月 12 日 至 2012 年 6 月 8 日毕业设计题目: 东荣一矿 1.5 Mt/a 新井设计毕业设计专题题目: 回采巷道复合顶板破坏机理与支护技术毕业设计主要内容和要求:以实习矿井东荣一矿条件为基础,完成东荣一矿 1.5Mt/a 新井设计。主要内容包括:矿井概况、矿井工作制度及设计生产能力、井田开拓、首采区设计、采煤方法、矿井通风系统、矿井运输提升等。结合煤矿生产前沿及矿井设计情况,撰写一篇关于回采巷道复合顶板破坏机理与支护技术的专题论文。完成与采矿有关的科技论文翻译一篇,题目为“Triggering of Seismicity Remote from Active Mining Excavations”,论文 3422 字符。院长签字: 指导教师签字:中国矿业大学毕业设计指导教师评阅书指导教师评语(①基础理论及基本技能的掌握;②独立解决实际问题的能力;③ 研究内容的理论依据和技术方法;④取得的主要成果及创新点; ⑤工作态度及工作量;⑥总体评价及建议成绩;⑦存在问题; ⑧是否同意答辩等):成 绩: 指导教师签字:年 月 日中国矿业大学毕业设计评阅教师评阅书评阅教师评语(①选题的意义; ②基础理论及基本技能的掌握; ③综合运用所学知识解决实际问题的能力;④工作量的大小;⑤ 取得的主要成果及创新点; ⑥写作的规范程度;⑦总体评价及建议成绩;⑧存在问题;⑨是否同意答辩等 ):成 绩: 指导教师签字:年 月 日中国矿业大学毕业论文答辩及综合成绩答 辩 情 况回 答 问 题提 出 问 题 正 确基本正确有一般性错误有原则性错误没有回答答辩委员会评语及建议成绩:答辩委员会主任签字: 年 月 日学院领导小组综合评定成绩:学院领导小组负责人: 年 月 日摘 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 1.5 Mt/a 的新井设计,东荣二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 7.0 km,倾向(南北)长平均约 4.0 km,井田水平面积为 28.0 km2。主采煤层一层,即二槽煤层,平均倾角 18.0°,厚约 3.50 m。井田工业储量为 335.75 Mt,可采储量 238.67Mt,矿井服务年限为 106 a。井田地质条件简单。表土层平均厚度 142 m;矿井正常涌水量为 100 m3/h,最大涌水量为 200 m3/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 2.73 m3/min,属低瓦斯矿井;煤层无自然发火倾向,为易自燃煤层;煤尘有爆炸危险。矿井采用双立井单水平开拓,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 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 230 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 7 个循环,循环进尺 0.6 m,日产量 4402.06 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 693.3Pa,风阻 0.226 N·s2/m8,等积孔 2.50 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 1396.3 Pa,风阻 0.459 N·s2/m8,等积孔 1.76 m2,矿井通风中等困难。设计矿井的吨煤成本 120.08 元/t。专题部分题目是回采巷道复合顶板破坏机理与支护技术。翻译部分是采矿活动诱发微震。英文原文题目为: Triggering of Seismicity Remote from Active Mining Excavations关键词:立井;上下山开采;采区;倾斜长壁采煤法;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 1.5 Mt/a new underground mine design of dongrong coal mine. dongrong coal mine lies in jixian heilongjiang. the traffic is very convenient. It’s about 7.0 km on the strike and 4.0 km on the dip,with the 28.0 km2 total horizontal area. The minable coal seam of this mine is only one 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 106 a.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 dust explosion.This mine adopts opening up by adits with one 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 makedeveryday.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 2.50 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 1.76 m2. The cost of the designed mine is 120.08 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 triggering of Seismicity Remote from Active Mining ExcavationsKeywords:opening up by adits; up-dip and down-dip minging; strip district ; longwall mining to the dip or to the rise; diagonal ventilation目 录1 矿区概述及井田地质特征 ...............................................................11.1 矿区概述 .........................................................................................................11.1.1 地理位置 .................................................................................................11.1.2 矿区气候条件 .........................................................................................11.1.3 地形地貌及水系 .....................................................................................11.2 井田地质特征 ................................................................................................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 水文地质 .................................................................................................31.2.6 其它开采技术条件 .................................................................................51.2.7 对资源条件的评价 .................................................................................52 井田境界与储量 ...............................................................................82.1 井田境界 .........................................................................................................82.2 矿井储量计算 ............................................................................................82.2.1 构造类型 .................................................................................................82.2.2 矿井工业储量 .........................................................................................82.2.3 矿井可采储量 .......................................................................................102.2.4 风井保护煤柱 .......................................................................................122.2.5 大巷保护煤柱 .......................................................................................132.2.6 矿井可采储量 .......................................................................................133 矿井工作制度、设计生产能力及服务年限 .................................143.1 矿井工作制度 ...............................................................................................143.2 矿井设计生产能力及服务年限 ...................................................................143.2.1 确定依据 ...............................................................................................143.2.2 矿井设计生产能力 ...............................................................................143.2.3 矿井服务年限 .......................................................................................143.2.4 井型校核 ...............................................................................................154 井田开拓 .........................................................................................164.1 井田开拓的基本问题 ...................................................................................164.1.1 井筒形式的确定 ...................................................................................164.1.2 井筒位置的确定采区划分 ...................................................................184.1.3 阶段划分和开采水平的确定 ...............................................................194.1.4 井田划分 ...............................................................................................194.1.5 主要开拓巷道 .......................................................................................194.1.6 开拓方案比较 .......................................................................................194.2 矿井基本巷道 ...............................................................................................294.2.1 井筒 .......................................................................................................294.2.2 井底车场及硐室 ...................................................................................294.2.3 主要开拓巷道 .......................................................................................314.2.4 巷道支护 ...............................................................................................385 准备方式— 采区巷道布置 .............................................................395.1 煤层地质特征 ...............................................................................................395.1.1 采区位置 ...............................................................................................395.1.2 采区煤层特征 .......................................................................................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 采区巷道布置及生产系统 ...........................................................................395.2.1 采区范围及区段划分 ...........................................................................395.2.2 煤柱尺寸的确定 ...................................................................................395.2.3 区段斜长的确定 .................................................................................405.2.4 采区巷道布置 .....................................................................................405.2.5 采区巷道的联络方式 .........................................................................405.2.6 采区接替顺序 .....................................................................................415.2.7 采区生产系统 .....................................................................................415.2.8 采区巷道掘进 .....................................................................................425.2.9 采区生产能力及采出率 .....................................................................425.3 采区车场选型设计 .......................................................................................435.3.1 确定采区车场形式 .............................................................................435.3.2 采区主要硐室布置 .............................................................................446 采煤方法 .........................................................................................466.1 采煤工艺方式 ...............................................................................................466.1.1 采区煤层特征及地质条件 ...................................................................466.1.2 确定采煤工艺方式 ...............................................................................466.1.3 回采工作面参数 ...................................................................................466.1.4 回采工作面的破煤和装煤方式 .........................................................466.1.5 回采工作面支护方式 .........................................................................496.1.6 端头支护及超前支护方式 .................................................................506.1.7 各工艺过程注意事项 .........................................................................516.1.8 工作面正规循环作业 .........................................................................536.2 回采巷道布置 ...............................................................................................556.2.1 回采巷道布置方式 .............................................................................556.2.2 回采巷道参数 .....................................................................................557 井下运输 .......................................................................................577.1 概述 ...............................................................................................................577.1.1 井下运输设计的原始条件和数据 .....................................................577.1.2 运输距离和货载量 .............................................................................577.1.3 矿井运输系统 .....................................................................................577.2 采区运输设备选择 .......................................................................................587.2.1 设备选择原则 .....................................................................................597.2.2 区段运输设备选型 .............................................................................597.2.3 上山运输设备选型 .............................................................................597.3 大巷运输设备选择 .....................................................................................617.3.1 运输大巷设备选择 .............................................................................617.3.2 辅助运输大巷设备选择 .....................................................................618 矿井提升 .......................................................................................638.1 概述 ...............................................................................................................638.2 主井提升 .......................................................................................................638.2.1 箕斗 .....................................................................................................638.2.2 提升机 .................................................................................................638.2.3 钢丝绳技术特征 .................................................................................648.2.4 提升能力验算 .....................................................................................648.3 副井提升 .....................................................................................................659 矿井通风及安全 .............................................................................679.1 矿井通风系统选择 .......................................................................................679.1.1 矿井概况 .............................................................................................679.1.2 矿井通风系统的基本要求 .................................................................679.1.3 矿井通风方式的选择 .........................................................................679.1.4 主要通风机工作方式选择 .................................................................68
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