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浅析矿井煤与瓦斯突出机理及防治.rar

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    编 号 : ( ) 字 号本 科 生 毕 业 设 计 ( 论 文 )题目: 孔庄煤矿 1.2Mt/a 新井设计 浅析矿井煤与瓦斯突出机理及防治 姓名: 贾 靳 学号: 01080041 班级: 采矿工程 2008-2 班 二〇一二年六月中 国 矿 业 大 学本 科 生 毕 业 设 计姓 名: 贾 靳 学 号: 01080041 学 院: 矿 业 工 程 专 业: 采 矿 工 程 设计题目: 孔庄煤矿 1.2Mt/a 新井设计 专 题: 浅析矿井煤与瓦斯突出机理及防治 指导教师: 季 明 职 称: 讲 师 2012 年 6 月 徐州中国矿业大学毕业论文任务书学院 矿业工程 专业年级 采矿工程 2008 级 学生姓名 贾 靳 任务下达日期: 2012 年 1 月 14 日毕业论文日期:2012 年 3 月 14 日至 2012 年 6 月 8 日毕业论文题目:孔庄煤矿 1.2Mt/a 新井设计毕业论文专题题目:浅析矿井煤与瓦斯突出机理及防治毕业论文主要内容和要求:根据采矿工程专业毕业设计大纲,本毕业设计分为一般部分、专题部分和翻译部分,具体包括:1、一般部分:孔庄煤矿 1.2Mt/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。2、专题部分:浅析矿井煤与瓦斯突出机理及防治。3、翻译部分:完成近 3-5 年国外期刊上与采矿或煤矿安全有关的科技论文翻译一篇,要求不少于 3000 字符。院长签字: 指导教师签字:中国矿业大学毕业论文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: 评阅教师签字: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:一般部分、专题部分和翻译部分。一般部分为孔庄煤矿 1.2Mt/a 新井设计。孔庄煤矿位于江苏省徐州市西北大约 80km处,井田位于江苏省沛县和山东省微山县境内,其东为山东省微山县金源煤矿,南、北分别是江苏天能集团的沛城煤矿和上海大屯能源股份有限公司的徐庄煤矿。井田平均走向长度 5.4km,平均倾向长度 3.2km,井田面积约 17.3km2。煤层倾角平均为 12°,倾角变化较小,可采煤层为 7 煤和 8 煤,设计煤层为 8 煤,平均厚度 5.0m。矿井工业储量302.2Mt,可采储量 200.6Mt,设计服务年限 111.4a。矿井正常涌水量 185m3/h,最大涌水量 345m3/h。矿井相对瓦斯涌出量 1.84m3/min,属低瓦斯矿井。煤层自燃倾向性为三类,煤尘具爆炸危险性。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:立井单水平开拓加辅助水平开拓,一水平上山开采,辅助水平上下山开采,辅助水平大巷设在煤层中;方案二:立井加暗斜井延伸两水平开拓,水平通过石门与其水平岩石大巷相连通,二水平通过井底车场与二水平岩石大巷相连通;方案三:立井两水平开拓(岩巷),立井延伸,设两水平,两水平均通过石门与上下水平岩石大巷相连通;方案四:立井两水平开拓(煤巷),立井延伸,设两水平,两水平均通过石门与上下水平煤层大巷相连通。通过粗略和详细技术经济比较,最终确定方案三为最优方案。一水平标高-660m,二水平标高-820m。整个井田划分为 5 个采区。采用中央并列式通风。矿井采用采区式准备方式,工作面设计长度 200m。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 16h。矿井采用“三八”制工作制度,两班生产,一班检修。生产班每班完成 3 个采煤循环。循环进尺为 0.5m,日产量 3866.94Mt。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 12t 底卸式箕斗提煤,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:浅析矿井煤与瓦斯突出机理及防治。主要综述了煤与瓦斯突出事故的机理、预测及指标检验、防治和保障体系。翻译部分主要内容是关于基于 LBM 的计算机模拟巷道中瓦斯的运移和阻滞模型及其应用。英文题目是:Simulation model of gas migration and hindering in underground tunnel based on LBM。关键词:立井;两水平;采区;综合机械化一次采全高;中央并列式通风ABSTRACTThis design includes three parts: the general design, the monographic study and the translation.The general design is about a 1.2Mt/a new underground mine design of Kongzhuang Coal Mine. Kongzhuang Coal Mine lies in the northwest of Xuzhou City, Jiangsu province. The transportation in the mining area is very convenient. It’s about 5.4km on the strike and 3.2km on the dip, with the 17.3km2 total area. There are 2 minable coal seam. The main aquifer coal seam is 8 coal seam with an average thickness of 5.0m, and the average dip of 8 coal seam is 12°. The proved reserves of this coal mine are 302.2Mt and the minable reserves are 200.6Mt, with a mine life of 111.4a. The normal mine inflow is 185m3/h and the maximum mine inflow is 345m3/h. The mine relative gas emission quantity is 4.436m3/t, and the absolute gas emission quantity is 30.806m3/min. Thus, it is a low gas mine. The coal seam has spontaneous combustion tendency, and the coal dust has explosion hazard.Based on the geological conditions of the mine, four available project in technology was brought forward. The first is vertical shaft development with a single mining level including a auxiliary level; the second is vertical shaft development with two mining levels, the deep extension of blind slope; the third is vertical shaft development with two mining levels, and the tunnel is set in the rock seam; the last is vertical shaft development with two mining levels, and the tunnel is set in the coal seam. The third project is the best comparing with other three projects in technology and economy. The first mining level is -660m, the second mining level is -820m . The mine field is divided into five mining districts. The type of mine ventilation is the centralized juxtapose ventilation . Designed first mining district makes use of the method of the mining district preparation. The design length of working face is 200m, which uses fully mechanized mining overall height in one times technology. The working days in one year are 330. Everyday it takes 16 hours in lifting the coal. The operation mode in the mine is “three-eight” with two teams mining and the other overhauling. Every mining team makes three working cycle. So everyday there are 6 working cycles. The advance of a working cycle is 0.5m, and the quantity of 3866.94 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 12t skips to lift coal and the auxiliary shaft uses a twins wide 1.5t four-car double-deck cage to lift material and personnel transportation.The monographic study entitled “Initial analysis on the mechanism and prevention of coal and gas outburst”. The study mainly summarized themechanism ,forecast, verify, prevention and insurance system of coal and gas outburst.The translated academic paper is about Numerical simulation of the gas migration and hindering in the tunnel. Its title is “Simulation model of gas migration and hindering in underground tunnel based on LBM”.Keywords: shaft; two mining levels; mine district; fully mechanized mining overall height in one times technology; centralized juxtapose ventilation目 录一般部分1 矿区概述及井田地质特征 .........................................................................................................11.1 矿区概述 ................................................................................................................................11.1.1 井田位置 .........................................................................................................................11.1.2 交通 .................................................................................................................................11.1.3 矿权 .................................................................................................................................11.1.4 自然地理 .........................................................................................................................21.1.5 矿区经济概况 .................................................................................................................21.1.6 水源及电源 .....................................................................................................................21.2 井田地质特征 ........................................................................................................................21.2.1 区域地层 .........................................................................................................................21.2.2 井田地质构造 .................................................................................................................31.2.3 水文地质特征 .................................................................................................................51.2.4 其它有益矿物 .................................................................................................................61.3 煤层特征 ................................................................................................................................71.3.1 煤层概况 .........................................................................................................................71.3.2 煤层赋存状况 .................................................................................................................91.3.3 煤质 .................................................................................................................................91.3.4 瓦斯 .................................................................................................................................91.3.5 煤尘及煤的自燃 .............................................................................................................92 井田境界和储量 .......................................................................................................................102.1 井田境界 ..............................................................................................................................102.1.1 井田范围 .......................................................................................................................102.1.2 开采界限 .......................................................................................................................102.1.3 井田尺寸 .......................................................................................................................102.2 井田地质勘探 ......................................................................................................................102.3 矿井地质储量 ......................................................................................................................102.3.1 储量计算基础 ...............................................................................................................102.3.2 矿井地质储量计算 .......................................................................................................112.3.3 矿井工业储量计算 .......................................................................................................122.4 矿井可采储量 ......................................................................................................................122.4.1 井田边界保护煤柱 .......................................................................................................122.4.2 工业广场保护煤柱 .......................................................................................................132.4.3 断层保护煤柱 ...............................................................................................................142.4.4 大巷保护煤柱 ...............................................................................................................142.4.5 矿井可采储量 ...............................................................................................................153 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 矿井设计生产能力及服务年限 ..........................................................................................163.2.1 确定依据 .......................................................................................................................163.2.2 矿井设计生产能力 .......................................................................................................163.2.3 矿井服务年限 ...............................................................................................................16
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