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    编 号 : ( ) 字 号本 科 生 毕 业 设 计 ( 论 文 )题目: 许疃煤矿 1.2Mt/a 新井设计 离层分区注浆减沉技术在许疃煤矿应用探讨 姓名: 温双武 学号: 01080055 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: 温双武 学 号: 01080055 学 院: 矿 业 工 程 专 业: 采 矿 工 程 设计题目: 许疃煤矿 1.2Mt/a 新井设计 专 题: 离层分区注浆减沉技术在许疃煤矿应用探讨 指导教师: 谢文兵 职 称: 教 授 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 温双武 任务下达日期: 2012 年 1 月 8 日毕业论文日期:2012 年 3 月 12 日至 2012 年 6 月 8 日毕业论文题目:许疃煤矿 1.2Mt/a 新井设计毕业论文专题题目:离层分区注浆减沉技术在许疃煤矿应用探讨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:许疃煤矿 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:离层分区注浆减沉技术在许疃煤矿应用探讨。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。一般部分为许疃煤矿 1.2Mt/a 新井设计。许疃煤矿位于安徽省宿州市,地处平原,土地肥沃,农作物生长良好。井田南北走向长 6.27~6.47km,东西倾向宽 3.11~3.73km,井田面积约 19.94km2。井田内主要可采煤层 72 煤层,倾角 6.6~15.5°,平均厚度 3m。矿井工业储量为 123.56Mt,可采储量为 85.74Mt Mt,设计服务年限 54.9a。矿井正常涌水量为1050m3/h,最大涌水量为 1660m3/h。矿井相对瓦斯涌出量为 22m3/t,最大绝对瓦斯涌出量为 64.83m3/min,属高瓦斯矿井。煤层属可能自然发火煤层,煤尘有爆炸危险性。根据矿区及井田地质条件,设计采用立井单水平开拓方式。上山布置带区,断层上盘布置采区,全井田共划分为四个带区,一个两翼采区,一个单翼采区。轨道大巷、胶带机大巷和回风大巷根据服务年限布置在煤层或岩层。本矿井为高瓦斯矿井,设置专用回风井巷,并预掘底板瓦斯抽排巷进行瓦斯卸压抽放,矿井通风方式采用中央并列式。针对涌水量大,大巷均向井底车场微斜自然排水,下山上行开采,后期向采空区排水。首采区带区式准备,工作面设计长度 220m,采用综合机械化采煤工艺。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,日产量为 4243.54t。矿井煤炭采用胶带输送机运输,辅助运输采用 DLZ110F 柴油机单轨吊。主井采用一对 12t 底卸式箕斗提煤,副井采用多绳摩擦式提升机提升一窄( 1.02)一宽(1.67)罐笼。专题部分题目为:离层分区注浆减沉技术在许疃煤矿应用探讨。在绿色开采及科学采矿理念的指导下,结合许疃煤矿覆岩特征及“三下”压煤状况,提出对高采出率下减缓地表下沉技术的探索。运用数值模拟方法对离层区注浆减沉技术在许疃煤矿的使用进行了分析探讨。设计工作面长 160m,关键层下岩层可达超充分采动状态;离层区充填体分担了部分覆岩载荷,分区煤柱应力集中明显减小;分区间跳采,因跳采出现的孤岛工作面待两侧离层区充填稳定后仍用离层区充填方法开采,数值模拟结果表明此方法可以有效减缓地表沉陷、提高资源开采率。翻译部分主要讲述了爆破卸压的应用现状,包括地质、岩石性质、开采条件和爆破参数(炮孔布置、孔深、爆破载荷等) ,讨论了爆破卸压的优势并对其作为解决高采动应力引起冲击矿压的效果进行了评价,英文题目为:Destress Blasting in Coal Mining – State-of-the-Art Review。关键词:许疃煤矿;立井单水平;瓦斯卸压抽放;下山上行开采;单轨吊;F5 逆断层;变频对旋式通风机;离层区;数值模拟;爆破卸压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 Xutuan Coal Mine. Xutuan Coal Mine lies in Suzhou City, Anhui province,where soil is flat and fertile. It’s about 6.27~6.47km on the strike and 3.11~3.73km on the dip, with the 19.94km2 total area. The main aquifer coal seam is 72 coal seam with an average thickness of 3 m, and the dip is 6.6~15.5°. The proved reserves of this coal mine are 123.56Mt and the minable reserves are 85.74Mt, with a mine life of 54.9 years. The normal mine inflow is 1050m3/h and the maximum mine inflow is 1660m3/h. The mine relative gas emission quantity is 22m3/t, and the absolute gas emission quantity is 64.83m3/min. The coal seam is feasible spontaneous combustion coal seam and the coal dust has explosion hazard.Based on the geological condition of the mine, this design uses a vertical shaft single-level development method,which divided into four bands and two districts, and track roadway, belt conveyor roadway and return airway are different on different lifetime, arranged in the floor rock or coal seam. Taking into account of the high gas emission, set up dedicated roadway for ventilation, and excaves bottom gas drainage roadway to relief gas pressure, mine ventilation method use Central abreast ventilation.in connection of big water inflow ,roadway tilts to the shaft bottom to facilitate drainage , ascending mining is adopted in the district dip,take advantage of goaf for drainage.Designed first mining district makes use of the method of the strip district preparation. The design length of working face is 220m, which uses fully mechanized mining 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 0.8m, and the quantity of 4243.54 ton coal is maked everyday.Main roadway makes use of belt conveyor to transport coal resource, and overhead monorail to be assistant transport. The main shaft uses a double 12t skips to lift coal and the auxiliary shaft uses two cage,one is 1.02m and the other is 1.67m.The monographic study entitled “Application of isolated section grouting technology for overburden bed separation space in Xutuan coal mine”. Under the guidance of concept of green mining and scientific mining,in connction of characteristic of Xutuan, exploring a way to reduce subsidence with a high recovery.Studid by numerical simulation.The length of woking face is 160m,rock statum under the key statum can be full mining;in terms of backfill shares some stress, coal pillar stress was significantly reduced.skip-mining amone isolated section,island mining face was mined after stability of both sides of gob. The numerical results show that this method can effectively reduce mining subsidence , increase the coal recovery.The translated academic paper presentsa state-of-the-art review of destress blasting in coal mining. Information such as geology, rock properties, miningconditions as well as blasting parameters such as blasthole layout, hole length, explosive loading etc. are presented.The paper discusses the main benefits of destress blasting and the evaluation of its effectiveness as a measure toovercome the challenges of high mining-induced stresses causing coal bumps and rockbursts.The title is “Destress Blasting in Coal Mining – State-of-the-Art Review”.Keywords: Xutuan coal mine; shaft single-level development; gas drainage and relief gas pressure ; ascending mining in the district dip ; overhead monorail ;F5 reverse fault;rotating fan with frequence convision ; overburden bed separation space; numerical simulation; Destress Blasting目 录一般部分1 矿区概况与井田地质特征 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙11.1 矿区概述 ................................................................................................................................11.1.1 地理位置 .........................................................................................................................11.1.2 地形、地貌 .....................................................................................................................21.1.3 交通条件 .........................................................................................................................21.1.4 气候、地震 .....................................................................................................................21.1.5 水文情况 .........................................................................................................................21.1.6 矿区经济概况 .................................................................................................................21.1.7 水源、电源 .....................................................................................................................21.2 井田地质特征 ........................................................................................................................31.2.1 井田煤系地层 .................................................................................................................31.2.2 井田地质构造 .................................................................................................................41.2.3 井田水文地质特征 .........................................................................................................61.3 煤层特征 ................................................................................................................................71.3.1 可采煤层赋存特征 .........................................................................................................71.3.2 煤质 .................................................................................................................................71.3.3 煤层开采技术条件 .........................................................................................................82 井田境界和储量 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙92.1 井田境界 ................................................................................................................................92.1.1 井田范围 .........................................................................................................................92.1.2 开采界限 .........................................................................................................................92.1.3 井田尺寸 .........................................................................................................................92.2 矿井工业储量 ........................................................................................................................92.2.1 储量计算基础 .................................................................................................................92.2.2 井田地质勘探 ...............................................................................................................102.2.3 矿井工业储量计算 .......................................................................................................102.3 矿井可采储量 ......................................................................................................................112.3.1 安全煤柱留设原则 .......................................................................................................112.3.2 矿井保护煤柱损失量 ...................................................................................................122.3.3 矿井设计可采储量 .......................................................................................................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 矿井设计生产能力 .......................................................................................................163.2.2 确定依据 .......................................................................................................................163.2.3 服务年限 .......................................................................................................................173.2.4 井型校核 .......................................................................................................................174 井田开拓 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙184.1 井田开拓基本问题 ..............................................................................................................184.1.1 确定井筒(硐)形式、数目、位置及坐标 ...............................................................18
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