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近距离煤层群保护层开采的瓦斯治理.rar

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    近距离 煤层 保护层 开采 瓦斯 治理
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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。一般部分为山脚树煤矿 1.50 Mt/a新井设计。山脚树煤矿位于贵州省六盘水市境内,红果至水城铁路干线和盘(县)水(城) 公路从矿区通过, 通便利。井田走向长度约 5.30 km,倾向长度约 3.50 km,面积约 18.27。主采煤层为 12煤层,平均倾角为 10.5°,平均厚度为 3.17 m。井田工业储量为 357.41 Mt,可采储量为 266.36Mt,矿井服务年限为 136.59 a。矿井正常涌水量为 160 m3/h,最大涌水量为 600m3/h。矿井相对瓦斯涌出量为50.73m3/t,属于高瓦斯矿井。根据井田地质条件,提出四个技术上可行的开拓方案。方案一:双立井两水平开拓,暗斜井延伸;方案二:双斜井两水平开拓暗斜井延伸;方案三:双斜井两水平开拓暗立井延伸;方案四:双斜井三水平开拓。通过技术经济比较,最终确定方案二为最优方案。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,沿空掘巷,矿井年工作日为 300 d,工作制度为“三八制” 。大巷采用胶带输送机运煤,辅助运输采用矿车运输。矿井通风方式为中央边界式。专题部分题目:煤与瓦斯共采技术现状综述,煤与瓦斯共采技术实现工作面 Y型通风,根本上解决了上隅角瓦斯积聚难题,利于实现高浓度瓦斯抽采,有效解决了工作面的瓦斯超限问题,成倍提高我国高瓦斯难抽放煤层工作面的单产水平。是绿色采矿的发展方向,在技术上和经济上具有很大的优越性。翻译部分题目:Analytical models for rock bolts.关键词:山脚树煤矿;斜井;采区布置;一次采全高采煤法;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 1.50 Mt/a new underground mine design of Shanjiaoshu coal mine. Shanjiaoshu coal mine lies in Pan City, Guizhou province.As Hongguo railway runs in the west of the mine field and Shuicheng railway runs in the east of the mine field, the traffic is convenient.It’s about 5.30 km on the strike and 3.50 km on the dip, with the 18.72 km2 total horizontal area.The minable coal seam is 12 with an average thickness of 3.17 m and an average dip of 10.5°.The proved reserves of this coal mine are 357.41 Mt and the minable reserves are 266.36 Mt, with a mine life of 136.59 a. The normal mine inflow is 160 m3/h and the maximum mine inflow is 600 m3/h. The mine gas emission rate is 50.73 m3/t,which belongs to high gas mine. Mine geological conditions under the proposed development schemes for the four technically feasible. Option One: Two parallel inclined central ventilation; Option II: Two-shaft ventilation shaft ventilation Shihmen; Option Three: Two wings of the angle of ventilation shaft; program four: two wings of the angle of ventilation shaft. Through technical and economic comparison of a finalized plan for the optimal solution. Design of the mining area prepared by way of bands, face length of 210 m, high-mining method using large mining along goaf, working as a mine of 300 d, the work system as “forty-six system. “Roadway by belt conveyor to transport coal, auxiliary transport by tramcar transport. Mine ventilation for the central parallel.Special section topic: coal and gas extraction technology status review, coal and gas extraction technology for face Y-ventilation, a fundamental solution to the problem on the corner gas accumulation, conducive to high concentrations of gas extraction, an effective solution to the face Gas gauge problems, doubled and redoubled difficult drainage of high gas yields coal face. Green mining development in the technical and economic advantages of greatTranslation of part of the subject: the process of circular tunnel in the relief of the numerical simulation of rock burst occurredKeywords: Shanjiaoshu Coal; shaft; shaft; band arrangement; large mining height of coal mining; central parallel; along goaf·目 录1 矿区概述及井田地质特征 .................................................................................................21.1 矿区概述 .......................................................................................................................21.1.1 矿区地理`位置 ......................................................................................................21.1.2 矿区气候条件 .......................................................................................................21.1.3 矿区地形地貌及水文情况 ...................................................................................31.2 井田地质特征 ..............................................................................................................31.2.1 煤系地层 ...............................................................................................................31.2.2 水文地质特征 .......................................................................................................41.3 煤层特征 ......................................................................................................................51.3.1 可采煤层 ...............................................................................................................51.3.2 煤质 ........................................................................................................................61.3.3 煤层开采技术条件 ...............................................................................................62 井田境界与储量 .................................................................................................................92.1 井田境界 .......................................................................................................................92.2 井田地质勘探 ...............................................................................................................92.3 矿井储量计算 ..............................................................................................................923.1 构造类型 .................................................................................................................92.3.2 矿井工业储量 .......................................................................................................92.3.3 矿井地质储量计算 ..............................................................................................102.3.4 矿井工业储量计算 .............................................................................................112.4 矿井可采储量 ............................................................................................................122.4.1 井田边界保护煤柱 ..............................................................................................122.4.2 工业广场煤柱 ......................................................................................................122.4.3 主副斜井及断层保护煤柱 ..................................................................................142.4.4 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 ...................................................................163.1 矿井工作制度 .............................................................................................................163.2 矿井设计生产能力 ....................................................................................................163.2.1 确定依据 .............................................................................................................163.2.2 矿井服务年限 .....................................................................................................163.2.2 井型校核 .............................................................................................................174 井田开拓 ...........................................................................................................................184.1 井田开拓的基本问题 .................................................................................................184.1.1 确定井筒形式、数目、位置及坐标 ..................................................................184.1.2 工业场地的位置 ..................................................................................................194.1.3 开采水平的确定开采深度 ..................................................................................19·4.1.4 主要开拓巷道 ......................................................................................................204.1.5 矿井开拓延深 ......................................................................................................204.1.6 开采顺序 ...........................................................................................................204.1.7 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 ..................................................................................................304.2.3 主要开拓巷道 ......................................................................................................325 准备方式— 采区巷道布置 ...............................................................................................345.1 煤层地质特征 .............................................................................................................345.1.1 采区位置 ..............................................................................................................345.1.2 采区煤层特征 ......................................................................................................345.1.3 煤层顶底板岩石构造情况 ..................................................................................345.1.4 水文地质 ..............................................................................................................345.1.5 主要地质构造 ......................................................................................................355.1.6 地表情况 ..............................................................................................................355.2 采区巷道布置及生产系统 .........................................................................................355.2.1 采区范围及区段划分 ..........................................................................................355.2.2 煤柱尺寸的确定 ..................................................................................................355.2.3 采煤方法及首采工作面工作面长度的确定 ......................................................355.2.4 确定采区各种巷道的尺寸、支护方式 ..............................................................355.2.5 采区巷道的联络方式 ..........................................................................................385.2.6 采区接替顺序 ......................................................................................................385.2.7 采区生产系统 ......................................................................................................385.2.8 采区内巷道掘进方法 ..........................................................................................395.2.9 采区生产能力及采出率 ......................................................................................395.3 采区车场选型设计 .....................................................................................................416 采煤方法 ...........................................................................................................................426.1 采煤工艺方式 .............................................................................................................426.1.1 采区煤层特征及地质条件 ..................................................................................426.1.2 工作面设备配套 ..................................................................................................436.1.3 进刀方式 ..............................................................................................................436.1.4 设备技术特征 ......................................................................................................446.1.5 巷道及工作面支护 ..............................................................................................456.1.6 端头支护及超前支护方式 ..................................................................................476.1.7 回采工作面正规循环作业 ..................................................................................486.2 回采巷道布置 .............................................................................................................506.2.1 回采巷道布置方式 ..............................................................................................506.2.2 回采巷道参数 ......................................................................................................50·7 井下运输 ...........................................................................................................................537.1 概述 .............................................................................................................................537.1.1 矿井设计生产能力及工作制度 ..........................................................................537.1.2 煤层及煤质 ..........................................................................................................537.1.3 运输距离和货载量 ..............................................................................................537.1.4 矿井运输系统 ......................................................................................................537.2 采区运输设备选择 .....................................................................................................547.2.1 设备选型原则: ..................................................................................................547.2.2 采区运输设备选型及能力验算 ..........................................................................547.3 大巷运输设备选 .........................................................................................................577.3.1 主运输大巷设备选择 ..........................................................................................577.3.2 辅助运输大巷设备选择 ......................................................................................587.3.3 运输设备能力验算 ..............................................................................................598 矿井提升 ...........................................................................................................................618.1 矿井提升概述 .............................................................................................................618.2 主副井提升 .................................................................................................................618.2.1 主井提升 ..............................................................................................................618.2.2 副井提升设备选型 ..............................................................................................628.2.3 井上下人员运送 ..................................................................................................649 矿井通风及安全 ...............................................................................................................659.1 矿井地质、开拓、开采概况 .....................................................................................659.1.1 矿井地质概况 ......................................................................................................659.1.2 开拓方式 ..............................................................................................................659.1.3 开采方法 ..............................................................................................................659.1.4 变电所、充电硐室、火药库 ..............................................................................669.1.5 工作制、人数 ......................................................................................................669.2 矿井通风系统的确定 .................................................................................................669.2.1 矿井通风系统的基本要求 ..................................................
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