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综合机械化放顶煤开采技术在吴四圪堵煤矿的可行性研究

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文中全面介绍了综合机械化放顶煤技术的国内外现状,结合内 蒙西部煤炭赋存特点首次提出了吴四圪堵煤矿应采用综合机械化放 顶煤开采工艺,从煤层开采深度、煤层厚度、煤层结构、夹矸层数 及硬度和厚度、煤层顶板岩性及其厚度、老顶岩性及其厚度、裂隙 发育程度、煤岩层交界面地质结构等方面深入分析其冒放性,并从 技术、经济和安全三大方面综合对综放技术在吴四圪堵煤矿实施的 可行性加以论证,得出综采放顶煤开采工艺在本矿井是技术上可行, 经济上合理和安全上可靠的采煤方法这一结论,同时对井田开拓、 采区布置及设备等方面的内容进行了相关论述。 关键字:综合机械化放顶煤技术;煤层冒放性;盈亏平衡点;安全 监测系统Abstract Current situation having introduced that synthetical mechanization puts in top coal technology home and abroad all round in culture, store characteristic creativeness combining with Neimeng western part coal tax the field is in progress having brought forward coal seam 6 of Wusigedu coal mine heddles suitable for use putting in a technology exploit, from coal seam thickness、the coal seam putting in nature、 leading the water crack taking altitude and the coal seam to cut the possibility giving off carry out the demonstration spreading out against 4-big aspect, emphasize giving off having analysed coal seam 6 putting in nature, the relevance having been in progress discusses the content joining to aspect such as well-field developing、mining area arrangement and equipment , puts putting into effect putting in a technology together will be able to give Wusigedu coal mine bringing about the fine economic effect. Keywords: Synthetical mechanization puts in the top coal technology ; The coal seam puts in nature boldly ; The profit loses money the balance point ; Safe monitor system目 录 1 导 论 ....................................................................................... 1 1.1 问题的提出及研究意义 ........................................................... 1 1.2 研究的主要内容及方法 ..........................................................2 2 井田概况及地质特征..........................................................................3 2.1 井田概况 ......................................................................................3 2.2 地质特征 ......................................................................................5 2.2.1 地质构造..................................................................................5 2.2.2 煤层特征..................................................................................6 2.3 资源/储量及其分析 ....................................................................11 2.3.1 资源 /储量 ............................................................................. 11 2.3.2 储量可靠性分析 ................................................................ 11 2.3.3 资源及开采条件评述 ....................................................... 11 3 井田开拓..............................................................................................13 3.1 井田境界及储量 ...................................................................13 3.2 矿井设计生产能力及服务年限................................................15 3.3 井田开拓....................................................................................17 3.4 井筒 [27] ..................................................................................... 20 3.5 井底车场及硐室 ...................................................................22 4 采煤方法的选择 ........................................................................... 234.1 采煤方法选择的原则 [1] ......................................................... 23 4.2 采煤方法的选择 ..........................................................................23 4.2.1 分层综合机械化采煤法 [27] ................................................. 23 4.2.2 综合机械化放顶煤采煤法 [1] ...................................... 24 4.3 综放开采与分层综采经济效益分析...............................28 5 综放开采技术在吴四圪堵矿应用的可行性分析................33 5.1 吴四圪堵煤矿实施综放的技术分析 [3] ............................. 33 5.2 吴四圪堵煤矿实施综放的经济分析 [18] ............................ 40 5.2.1 市场预测 ............................................................................40 5.2.2 投资估算与资金筹措 [19] ................................................ 43 5.2.3 财务评价 ............................................................................46 5.2.4 主要技术经济指标 ..........................................................51 5.3 吴四圪堵煤矿实施综放的安全性分析 [26][27] ................... 53 5.3.1 矿井涌水量预算 ..............................................................53 5.3.2 矿井危害产生的原因及防治措施...............................56 6 采区布置及装备 [1] [27] ................................................................... 60 6.1 采区布置 ...................................................................................60 6.2 回采工作面设备选型 ............................................................63 6.3 巷道掘进及支护 [27] ................................................................ 66 7 主要结论与展望..................................................................................68 7.1 本文的主要结论 ..........................................................................687.2 展望...............................................................................................69 致谢