涡北煤矿1.8 Mta新井设计.doc

1、摘 要本设计包括三个部分：一般部分、专题部分和翻译部分。一般部分为涡北煤矿1.80 Mt/a新井设计。涡北煤矿位于安徽省亳州市境内，东有京九铁路，西有濉阜铁路，交通便利。井田走向长度约6 km，倾向长度约3.2 km，面积约15km2。主采煤层为8号煤层，平均倾角为23，平均厚度为10.1 m。井田工业储量为212.6 Mt，可采储量为127.6 Mt，矿井服务年限为54.5 a。矿井正常涌水量为250 m3/h，最大涌水量为280 m3/h。矿井绝对瓦斯涌出量为21.33 m3/min，属于低瓦斯矿井。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：立井两水平开拓上下山开采，一对立井

2、直接延深；方案二：立井两水平开拓上下山开采，一对暗斜井延深；方案三：立井两水平开拓上下山开采，两对暗斜井延深；方案四：立井两水平开拓上下山开采，一对立井、一对暗斜井延深。通过技术经济比较，最终确定方案四为最优方案。一水平标高-700 m，二水平标高-1000m。设计首采区采用采区准备方式，工作面长度210 m，采用综采放顶煤采煤法，矿井年工作日为330 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。矿井通风方式前期为中央并列式，后期为两翼对角式。专题部分题目是浅谈机械制冷在煤矿热害防治中的应用，主要从矿井产生高温的原因，矿井地温的分布规律以及机械预冷风降温和冰输降温两

3、种机械降温的系统，并通过实例来说明了机械降温系统在煤矿热害治理中的应用以及它的广阔前景和研究必要性。翻译部分题目是关于地下开采中断层附近地下水突出的数值研究。关键词：涡北煤矿；立井；暗斜井；采区布置；放顶煤采煤法；两翼对角式；机械制冷；煤矿热害ABSTRACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The general design is about a 1.80 Mt/a new undergr

4、ound mine design of Gobei coal mine.Wobei coal mine lies in Bozhou City, Anhui province.As Jingjiu railway runs in the west of the mine field and Suifu railway runs in the east of the mine field, the traffic is convenient.Its about 6 km on the strike and 3.2 km on the dip, with the 14.85 km2 total h

5、orizontal area.The minable coal seam is 8 with an average thickness of 10.1 m and an average dip of 23.The proved reserves of this coal mine are 212.6 Mt and the minable reserves are 127.6 Mt, with a mine life of 54.5 a. The normal mine inflow is 250 m3/h and the maximum mine inflow is 280 m3/h. The

6、 mine gas emission rate is 21.33 m3/min which belongs to low gas mine. Based on the geological conditions of the mine, I bring forward four available projects in technology.The first is vertical shaft development with two mining levels and the extension of blind inclined shaft; the second is vertica

7、l shaft development with two mining levels and the extension of vertical shaft; the third is vertical shaft development with three mining levels and the extension of blind inclined shaft; the last is vertical shaft development with three mining levels and the extension of vertical shaft. The first p

8、roject is the best comparing with other three projects in technology and economy.The first level is at -700 m.The second level is at -1000 m.Designed first mining district makes use of the method of the mining district preparation.The length of working face is 210 m, which uses fully-mechanized coal

9、 caving mining method. The working system is “three-eight” which produces 330 d/a.Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. The type of mine ventilation system is two wings diagonal ventilation.The monographic study is the topic of me

10、chanical refrigeration in the coal thermal damage control , the reasons of high temperature from the mine , mine ground temperature distribution law , cold and mechanical pre- cooling and ice lost cooling both mechanical cooling system , and examples illustrates the application of the mechanical coo

11、ling system in the governance of coal heat damage as well as its broad prospects and research necessity .The translated academic paper is Finite element analysis of three-way roadway junctions in longwall mining.Keywords: Guobei coal; vertical shaft; blind inclined shaft; mining district preparation

12、; coal caving mining ; two wings diagonal ventilation; gob-side entry ；mechanical refrigeration；coal thermal damage目 录1 矿区概述及井田地质特征11.1矿区概述11.2井田地质特征21.3煤层特征72 井田境界和储量132.1井田境界132.2矿井工业储量132.3矿井可采储量163 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194 井田开拓214.1井田开拓的基本问题214.2矿井基本巷道325 准备方式采区巷道布置435.

13、1煤层地质特征435.2采区巷道布置及生产系统445.3采区车场选型设计496 采煤方法506.1采煤工艺方式506.2回采巷道布置597 井下运输627.1概述627.2采区运输设备选择647.3大巷运输设备选择658 矿井提升678.1概述678.2主副井提升679 矿井通风及安全709.1矿井地质、开拓、开采概况719.2矿井通风系统的确定719.3矿井风量计算749.4矿井通风阻力789.5矿井通风设备选型849.6特殊灾害的预防措施8910 设计矿井基本技术经济指标90参考文献91专题部分 机械制冷在煤矿热害防治中的应用921 问题的提出921.1背景921.2热害防治研究意义921

14、.3国内外发展状况942 矿井中高温高湿产生的原因952.1矿井中高温产生的原因952.2矿井中高湿产生的原因952.3矿井地温分布规律962.4导热偏微分方程建立973 机械制冷降温973.1空调系统的分类983.2机械预冷风降温1013.3冰冷却矿井空调系统1044 孙村矿机械制冷实例1114.1矿井风流热力参数的测定1114.2矿井热源分析1114.3矿井高温的危害1114.4降温方式1115 结论114参考文献:115翻译原文116Numerical investigation of groundwater outbursts near faults in underground co

15、al mines1161. Introduction1172. Brief introduction to the numerical method1183. Problem description1214. Model setup and numerical simulation1224.1. Numerical model1224.2. Strength reduction rule of element and determination of safety factor1244.3. Numerical simulation of groundwater outburst process1244.4. A case study from Fengying Coal Mine1285. Conclusions131翻译 关于地下开采中断层附近突水的数值研究1331简介1332 数值思路的简介1343 问题的描述1364.模型的建立和数值模拟1114.1 数值模型1444.2岩块强度减少的规则和安全系数的测定1384.3 地下水突出过程的数值模拟1384.4 从冯营煤矿的个案研究141致 谢145