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矿用充填材料与充填技术发展.rar

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    充填 材料 技术发展
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    中国矿业大学 2012 届本科生毕业设计(论文) 第 2 页 摘 要 本设计包括三个部分:一般部分、专题部分和翻译部分。 一般部分为城郊煤矿 2.4Mt/a 新井设计 ,共分 10 章: 1.矿区概述及井田地质特征; 2.井田境界和储量; 3.矿井工作制度、设计生产能力及服务年限; 4.井田开拓; 5.准备方式—带 区巷道布置; 6.采煤方法; 7.井下运输; 8.矿井提升; 9.矿井通风与安全技术; 10.矿井基本技术经济指标。 城郊井田位于河南省永城市境内,覆盖城关乡、城厢乡的全部及侯岭、双桥、十八里、将口乡的一部分。井田平均走向长度 8.1km,平均倾向长度 5.57km,井田面积约 45.12km2。煤层倾角平均为 6°,倾角变化较小,可采煤层为 2 煤和 3 煤,设计煤层为 3 煤,平均厚度 4.98m。矿井工业储量 310.22Mt,可采储量 214.19Mt,设计服务年限 63.7a。矿井正常涌水量 180m3/h,最大涌水量 230m3/h。矿井相对瓦斯涌出量 0.5 m3/min,属低瓦斯矿井。 确定开拓方案为 立井两水平开拓(岩巷),立井延伸,设两水 平 , 一水平标高 -550m,二水平标高 -750m。整个井田划分为 6 个 带 区。采用中央并列式通风。 矿井采用 带 区式准备方式,工作面设计长度 230m。采用综合机械化一次采全高工艺。矿井年工作日为 330d,昼夜净提升时间为 18h。矿井采用 “四六 ”制工作制度, 三 班生产,一班检修。生产班每班完成 2 个采煤循环。循环进尺为 0.8m,日产量 7312.24Mt。 矿井煤炭采用胶带输送机运输,辅助运输采用蓄电池式电机车牵引固定箱式矿车。主井采用两对 16t 侧 卸式箕斗提煤,副井采用一对 1.5t 矿车双层四车加宽罐笼运送物料和升降人员。 专题部分题目为: 矿用充填材料与充填技术发展 。主要综述了 近年来煤矿充填开采中应用的充填材料及充填技术 。 翻译部分 主要内容是 热多孔双重孔隙介质中的井壁稳定性分析 。英文题目是:Borehole stability analysis in a thermo poro-elastic dual-porosity medium。 关键词:立井;两水平; 带 区;综合机械化一次采全高;中央并列式通风 ABSTRACT This design includes three parts: the general design, the monographic study and the translation. The general design is about A 1.2 Mt/a New Underground Mine Design Of Chengjiao Coal Mine. The design includes ten chapters: 1. Mine overview and mine field geological features; 2. The mine field boundary and the reserves; 3. Mine system of work, design production capacity and service life; 4. Mine field extension; 5. Preparation-with the strip district roadway layout; 6. Mining methods; 7. Underground transport; 8. Mine hoist; 9. Mine ventilation and safety technology; 10. Mine basic technical and economic indicators. Chengjiao Minefield is located the territory of Yongcheng city,covering full of Chengguan Township, Chengxiang Township,and part of Houling Township,Shuangqiao Township,Shi Bali Township,Jiangkou Township. It’s about 8.1 km on the strike and 5.57 km on the dip, with the 45.12 km2 total area. There are 2 minable coal seam. The main aquifer coal seam is 3 coal seam with an average thickness of 4.98 m, and the average dip of 3 coal seam is 6°. The proved reserves of this coal mine are 310.22 Mt and the minable reserves are 214.19 Mt, with a mine life of 63.7 a. The normal mine inflow is 180 m3/h and the maximum mine inflow is 230 m3/h. The mine relative gas emission quantity is 0.5 m3/t, and the absolute gas emission quantity is 0.5m3/min. Thus, it is a low gas mine. Determine program is vertical shaft development with two mining levels, and the tunnel is set in the rock seam; The first mining level is -550 m, the second mining level is -750m . The mine field is divided into six mining strip district. The type of mine ventilation is the centralized juxtapose ventilation . Designed first mining district makes use of the method of the mining strip district preparation. The design length of working face is 230 m, which uses fully mechanized mining overall height in one times technology. The working days in one year are 330. Everyday it takes 18 hours in lifting the coal. The operation mode in the mine is “four-six” with three teams mining and the other overhauling. Every mining team makes two working cycle. So everyday there are 6 working cycles. The advance of a working cycle is 0.8 m, and the quantity of 7312.24 ton coal is maked everyday. Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. The main shaft uses two double 16 t skips to lift coal and the auxiliary shaft uses a twins wide 1.5 t four-car double-deck cage to lift material and personnel transportation. The monographic study entitled “Mine filling material and filling technology development.”. Reviewed the applications in recent years in the mining of coal filling the filling material and filling technology.. The translated title is “Borehole stability analysis in a thermo poro-elastic dual-porosity medium”. Keywords: shaft; two mining levels; strip district; fully mechanized mining overall height in one times technology; centralized juxtapose ventilation 目 录 1 矿区概述及井田地质特征 ........................................ 1 1.1 矿区概述 .................................................................................................................. 1 1.1.1 矿区地理位置与交通 ........................................................................................ 1 1.1.2 地形地貌 ............................................................................................................ 1 1.1.3 主要河流 ............................................................................................................ 1 1.2 井田地质特征 .......................................................................................................... 2 1.2.1 地层 .................................................................................................................... 2 1.2.2 井田地质构造 .................................................................................................... 4 1.2.3 水文地质特征 .................................................................................................... 4 1.3 煤层特征 .................................................................................................................. 4 1.3.1 煤层 .................................................................................................................... 4 1.3.2 煤质 .................................................................................................................... 6 2 井田境界与储量 .............................................. 7 2.1 井田境界 .................................................................................................................. 7 2.2 矿井工业储量计算 .................................................................................................. 7 2.2.1 储量计算依据 .................................................................................................... 7 2.2.2 矿井工业储量 .................................................................................................... 7 2.2.3 矿井工业储量计算 ............................................................................................ 9 2.3 矿井可采储量 ........................................................................................................ 10 2.3.1 安全煤柱留设原则 .......................................................................................... 10 2.3.2 矿井永久保护煤柱损失量 .............................................................................. 10 2.3.3 矿井可采储量 .................................................................................................. 12 3 矿井工作制度、设计生产能力 及服务年限 .......................... 13 3.1 矿井工作制度 ......................................................................................................... 13 3.2 矿井设计生产能力及服务年限 ............................................................................ 13 3.2.1 矿井设计生产能力及服务年限确定依据 ...................................................... 13 3.2.2 矿设计生产能力 .............................................................................................. 13 3.2.3 矿井服务年限 .................................................................................................. 13 3.2.4 井型校核 .......................................................................................................... 14 4 井田开拓 ................................................... 16 4.1 井田开拓的基本问题 ............................................................................................ 16 4.1.1 确定井筒形式、数目、位置及坐标 .............................................................. 16 4.1.2 工业场地的位置 .............................................................................................. 18 4.1.3 开采水平的确定 .............................................................................................. 18 4.1.4 运输大巷和井底车场的布置 .......................................................................... 18 4.1.5 矿井开拓延伸方案 .......................................................................................... 18 4.1.6 方案比较 .......................................................................................................... 19 4.2 矿井基本巷道 ........................................................................................................ 30 4.2.1 井筒 .................................................................................................................. 30 4.2.2 井底车场及硐室 .............................................................................................. 34 4.2.3 主要开拓巷道 .................................................................................................. 36 4.2.4 巷道支护 .......................................................................................................... 39 5 准备方式 —— 带区巷道布置 .................................... 40 5.1 煤层地质特征 ........................................................................................................ 40 5.1.1 带区位置 .......................................................................................................... 40 5.1.2 带区煤层特征 .................................................................................................. 40 5.1.3 煤层顶底板岩石构造情况 .............................................................................. 40 5.1.4 水文地质特征 .................................................................................................. 40 5.1.5 地质构造 .......................................................................................................... 40 5.1.6 地表情况 .......................................................................................................... 40 5.2 带区巷道布置及生产系统 .................................................................................... 40 5.2.1 带区准备方式的确定 ...................................................................................... 40 5.2.2 带区位置及范围 .............................................................................................. 41 5.2.3 带区巷道布置 .................................................................................................. 41 5.2.4 带区生产系统 .................................................................................................. 43 5.2.5 带区内巷道掘进 .............................................................................................. 43 5.2.6 带区生产能力及采出率 .................................................................................. 43 5.3 带区车场选型计算 ................................................................................................ 45 5.3.1 带区车场的形式 .............................................................................................. 45 5.3.2 带区主要硐室布置 .......................................................................................... 45 6 采煤方法 ................................................... 47 6.1 采煤工艺方式 ........................................................................................................ 47 6.1.1 带区煤层特征及地质条件 .............................................................................. 47 6.1.2 确定采煤工艺方式 .......................................................................................... 47 6.1.3 回采工作面参数 .............................................................................................. 48 6.1.4 回采工艺及工作面设备选型 .......................................................................... 48 6.1.5 回采工作面支护方式 ...................................................................................... 51 6.1.6 端头支护及超前支护方式 .............................................................................. 53 6.1.7 各工艺过程注意事项 ...................................................................................... 54 6.1.8 回采工作面正规循环作业 .............................................................................. 55 6.2 回采巷道布置 ........................................................................................................ 57 6.2.1 回采巷道布置方式 .......................................................................................... 57 6.2.2 回采巷道参数 .................................................................................................. 58 7 井下运输 ................................................... 67 7.1 概述 ........................................................................................................................ 67 7.1.1 井下运输设计的原始条件与数据 .................................................................. 67 7.1.2 运输距离和货载量 .......................................................................................... 67 7.1.3 井下运输系统 .................................................................................................. 67 7.2 带区运输设备选型 ................................................................................................ 68 7.2.1 设备选型原则 .................................................................................................. 68 7.2.2 带区运输设备的选型及能力验算 .................................................................. 68 7.3 大巷运输 设备选型 ................................................................................................ 70 7.3.1 运煤设备 .......................................................................................................... 70 7.3.2 辅助运输设备选择 .......................................................................................... 70 8 矿井提升 ................................................... 72 8.1 矿井提升概述 ........................................................................................................ 72 8.2 主副井提升 ............................................................................................................ 72 8.2.1 主井提升 .......................................................................................................... 72 8.3 副井提升 ................................................................................................................ 74 9 矿井通风及安全 .............................................. 76 9.1 矿井通风系统选择 ................................................................................................ 76 9.1.1 矿井概述 .......................................................................................................... 76 9.1.2 矿井通风系统的确定 ...................................................................................... 76 9.1.3 带区通风系统的确定 ...................................................................................... 78 9.1.4 矿井通风容易与困难时期的确定 .................................................................. 79 9.2 带区及全矿所需风量 ............................................................................................ 82 9.2.1 采煤工作面实际需风量 .................................................................................. 82 9.2.2 掘进工作面实际 需风量 .................................................................................. 83 9.2.3 硐室需风量 ...................................................................................................... 84 9.2.4 其它巷道需风量 .............................................................................................. 84 9.2.5 矿井所需总风量 ...............................................
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