当前位置:首页>> >>


郑州矿区“三软”不稳定煤层巷道支护技术分析.rar

收藏

资源目录
    文档预览:
    编号:20180910091952660    类型:共享资源    大小:6.30MB    格式:RAR    上传时间:2018-09-10
    尺寸:148x200像素    分辨率:72dpi   颜色:RGB    工具:   
    25
    金币
    关 键 词:
    郑州 矿区 不稳定 煤层 巷道 支护 技术 分析
    资源描述:
    编 号 : ( ) 字 号本 科 生 毕 业 设 计 ( 论 文 )题目: 赵家寨煤矿 2.4Mt/a 新井设计 郑州矿区“三软”不稳定煤层巷道支护技术分析姓名: 臧 龙 学号: 01070032 班级: 采矿工程 2007-1 班 二〇一一年六月中 国 矿 业 大 学本 科 生 毕 业 设 计姓 名: 臧 龙 学 号: 01070032 学 院: 矿 业 工 程 专 业: 采 矿 工 程 设计题目: 赵家寨煤矿 2.4Mt/a 新井设计 专 题:郑州矿区“三软”不稳定煤层巷道支护技术分析指导教师: 谢文兵 职 称: 教 授 2011 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 2007 级 学生姓名 臧 龙 任务下达日期: 2011 年 1 月 14 日毕业论文日期:2011 年 3 月 14 日至 2011 年 6 月 9 日毕业论文题目:赵家寨煤矿 2.4Mt/a 新井设计毕业论文专题题目:郑州矿区“三软”不稳定煤层巷道支护技术分析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:赵家寨煤矿 2.4Mt/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:郑州矿区“三软”不稳定煤层巷道支护技术分析。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。一般部分为赵家寨煤矿 2.4Mt/a 新井设计。赵家寨煤矿位于河南省新郑市,区内交通十分便利。井田东西走向长 13.5km,南北倾向宽 3~4km,井田面积约 47km2。井田内可采煤层共有 4 层,主采煤层为二 1 煤。井田内二 1 煤倾角在 0~14°之间,平均厚度 5.5m。矿井工业储量为 358.64Mt,可采储量为 244.17Mt,设计服务年限 72.6a。矿井正常涌水量为 600m3/h,最大涌水量为 650m3/h。矿井相对瓦斯涌出量为 4.436m3/t,绝对瓦斯涌出量为 30.806m3/min,属低瓦斯矿井。煤层无自然发火倾向,但煤尘有爆炸危险性。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:立井两水平开拓,暗斜井延深,东翼设一辅助水平;方案二:立井两水平开拓,暗立井延深,东翼设一辅助水平;方案三:立井三水平开拓,暗斜井延深,东翼设一辅助水平;方案四:立井三水平开拓,暗立井、暗斜井延深,东翼设一辅助水平。通过粗略和详细技术经济比较,最终确定方案一为最优方案。一水平标高-200m,二水平标高 -500m,东翼辅助水平标高-390m。整个井田划分为 9 个带区和 1 个采区。考虑到井田东西走向较长, 矿井生产前期采用中央并列式通风方式,后期根据需要在井田东西两翼增加两个边界回风井。矿井采用带区式准备方式,工作面设计长度 210m,采用综合机械化放顶煤采煤工艺。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,检修班完成 1 个采煤循环。循环进尺为0.8m,日产量为 7562.38t。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:郑州矿区“三软”不稳定煤层巷道支护技术分析。主要分析了郑州矿区“三软”不稳定煤层巷道失稳破坏的原因,并提出了相应的控制技术措施和控制郑州矿区“三软”煤巷支护失效和巷道围岩变形的机制。翻译部分主要内容是关于巷道掘进巷道掘进过程中粉尘影响因素的数值模拟研究,英文题目为:Numerical simulation of the factors influencing dust in drilling tunnels: Its application。关键词:立井;两水平;带区;综合机械化放顶煤;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 2.4 Mt/a new underground mine design of Zhaojiazhai Coal Mine. Zhaojiazhai Coal Mine lies in the west of Xinzheng City, Henan province. The transportation in the mining area is very convenient. It’s about 13.5 km on the strike and 4~5 km on the dip, with the 47 km2 total area. There are 4 minable coal seam. The main aquifer coal seam is 2-1 coal seam with an average thickness of 5.5 m, and the dip of 2-1 coal seam is 0~14°. The proved reserves of this coal mine are 358.64 Mt and the minable reserves are 244.17 Mt, with a mine life of 72.6 a. The normal mine inflow is 600 m3/h and the maximum mine inflow is 650 m3/h. The mine relative gas emission quantity is 4.436 m3/t, and the absolute gas emission quantity is 30.806 m3/min. Thus, it is a low gas mine. The coal seam has no spontaneous combustion tendency, but the coal dust has explosion hazard.Based on the geological conditions of the mine, I bring forward four available project in technology. The first is vertical shaft development with two mining levels, the deep extension of blind slope, and an auxiliary level is set on the east wing; the second is vertical shaft development with two mining levels, the deep extension of blind shaft, and an auxiliary level is set on the east wing; the third is vertical shaft development with three mining levels, the deep extension of blind slope, and an auxiliary level is set on the east wing, and the last is vertical shaft development with three mining levels, the deep extension of blind slope and blind shaft, and an auxiliary level is set on the east wing. The first project is the best comparing with other three projects in technology and economy. The first mining level is -200m, the second mining level is -500m, and the auxiliary level on the east wing is -390m. The mine field is divided into nine strip districts and one mining district. Taking into account the long distance in the east and west direction, The type of mine ventilation is the centralized juxtapose ventilation at the beginning period. At the later period, The type of mine ventilation is the centralized juxtapose ventilation two wings diagonal ventilation.Designed first mining district makes use of the method of the mining district preparation. The design length of working face is 210 m, which uses fully mechanized mining with top coal caving 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, and the overhauling team makes one working cycle. So everyday there are 7 working cycles. The advance of a working cycle is 0.8 m, and the quantity of 7562.38 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 12 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 “Analysis on “Three-soft” unstable coal seam roadway support technology of Zhengzhou mining area”. The study mainly analyse the instability failure reasons of “Three-soft” unstable coal seam roadway in Zhengzhou mining area. And the corresponding control measures and control mechanism on surrounding rock are raised in this study.The translated academic paper is about Numerical simulation of the factors influencing dust in drilling tunnels. Its title is “Numerical simulation of the factors influencing dust in drilling tunnels: Its application”.Keywords: shaft; two mining levels; strip district; fully mechanized mining with top coal caving; 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 地理位置 .....................................................................................................................11.1.2 地形、地貌 .................................................................................................................11.1.3 气象、地震 .................................................................................................................21.1.4 水文情况 .....................................................................................................................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 .......................................................................................................................31.2.1 井田煤系地层 .............................................................................................................31.2.2 井田地质构造 .............................................................................................................51.2.3 井田水文地质特征 .....................................................................................................61.3 煤层特征 ...............................................................................................................................81.3.1 可采煤层赋存特征 .....................................................................................................81.3.2 煤质 ...........................................................................................................................101.3.3 煤层开采技术条件 ...................................................................................................122 井田境界和储量 .......................................................................................................................132.1 井田境界 .............................................................................................................................132.1.1 井田范围 ...................................................................................................................132.1.2 开采界限 ...................................................................................................................132.1.3 井田尺寸 ...................................................................................................................132.2 矿井工业储量 .....................................................................................................................132.2.1 储量计算基础 ...........................................................................................................132.2.2 井田地质勘探 ...........................................................................................................142.2.3 矿井工业储量计算 ...................................................................................................142.3 矿井可采储量 .....................................................................................................................152.3.1 安全煤柱留设原则 ...................................................................................................152.3.2 矿井保护煤柱损失量 ...............................................................................................162.3.3 矿井设计可采储量 ...................................................................................................173 矿井工作制度、设计生产能力及服务年限 ...........................................................................193.1 矿井工作制度 .....................................................................................................................193.2 矿井设计生产能力及服务年限 .........................................................................................193.2.1 矿井设计生产能力 ...................................................................................................193.2.2 确定依据 ...................................................................................................................193.2.3 服务年限 ...................................................................................................................203.2.4 井型校核 ...................................................................................................................204 井田开拓 ...................................................................................................................................22
    展开阅读全文
    1
      金牌文库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
    0条评论

    还可以输入200字符

    暂无评论,赶快抢占沙发吧。

    关于本文
    本文标题:郑州矿区“三软”不稳定煤层巷道支护技术分析.rar
    链接地址:http://www.gold-doc.com/p-105572.html
    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服客服 - 联系我们
    copyright@ 2014-2018 金牌文库网站版权所有
    经营许可证编号:浙ICP备15046084号-3
    收起
    展开