采矿工程本科毕业设计张双楼矿1.8Mta的新井设计.doc
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1、摘 要本设计包括三个部分:一般设计部分、专题设计部分和翻译部分。一般部分为张双楼矿1.8 Mt/a的新井设计。张双楼煤矿位于江苏省徐州市境内,东有沛屯铁路与陇海线相连,交通十分便利。井田走向(东西)长平均约8.23 km,倾向(南北)长平均约3.88 km,井田水平面积为31.93 km2。主采煤层一层,即7号煤层,平均倾角8.9,厚约5.0 m。井田工业储量为226.69 Mt,可采储量156.51 Mt,矿井服务年限为66.9 a。井田地质条件简单。表土层平均厚度70 m;矿井正常涌水量为320 m3/h,最大涌水量为340 m3/h;煤层硬度系数f=2.3,煤质牌号为气煤44;矿井绝对瓦
2、斯涌出量为1.84 m3/min,属低瓦斯矿井;煤层有自燃发火倾向,发火期36个月,煤尘具有爆炸危险性。根据井田地质条件,提出四个技术上可行开拓方案。方案一:立井两水平开采,暗斜井延深至-700 m水平;方案二:立井两水平开采,立井延深至-700 m水平;方案三:立井两水平开采,暗斜井延伸至-820 m水平;方案四:立井两水平开采,立井井延伸至-820 m水平。通过技术经济比较,最终确定方案一为最优方案。将主采煤层划分为两个水平,一水平标高-450 m,二水平标高-700 m,因井田走向大断层将井田分为南北两部分,井田南部为一水平服务范围,井田北部为二水平服务范围。设计首采区采用采区准备方式,
3、工作面长度223 m,采用一次采全高采煤法,全部跨落法处理采空区。矿井采用“三八”制作业,两班生产,一班检修。生产班每班3个循环,日进6个循环,循环进尺0.6 m,日产量5432.16 t。大巷采用带式输送机运煤,辅助运输采用1.5 t固定箱式矿车。主井装备一套12 t双箕斗和一套12 t单箕斗带平衡锤提煤,副井装备一对3 t矿车双层单车罐笼带平衡锤担负辅助运输任务。矿井采用中央并列式通风。通风容易时期矿井总需风量4608 m3/min,矿井通风总阻力2096 Pa,风阻0.35 Ns2/m8,等积孔2.03 m2,矿井通风容易。矿井通风困难时期矿井总风量4608 m3/min,矿井通风总阻力
4、2746 Pa,风阻0.46 Ns2/m8,等积孔1.74 m2,矿井通风中等困难。设计矿井的吨煤成本110 元/t。专题部分题目是深井巷道锚杆支护技术。采用MATLAB 7.1矩阵实验软件来进行有关图形的绘制。翻译部分是一篇关于频率和锚固长度对超声波在锚杆中传播行为的影响的论文,英文原文题目为:Effects of frequency and grouted length on the behavior of guided ultrasonic waves in rock bolts。关键词:立井;上下山开采;大采高;单巷掘进;中央并列式ABSTRACTThis design can be
5、divided into three sections: general design, monographic study and translation of an academic paper.The general design is about a 1.8 Mt/a new underground mine design of Zhangshuanglou coal mine. Zhangshuanglou coal mine lies in Xuzhou, Jiangsu province. As Peitun railway run across the east part of
6、 the mining field connect to Longhai railway, the traffic is very convenient. Its about 8.23 km on the strike and 3.88 km on the dip,with the 31.93 km2 total horizontal area. The minable coal seam of this mine is only 7 with an average thickness of 5.0 m and an average dip of 8.9. The proved reserve
7、s of this coal mine are 226.69 Mt and the minable reserves are 156.51 Mt, with a mine life of 66.9 a.The geological condition of the mine is relatively simple. The normal mine inflow is 320 m3/h and the maximum mine inflow is 340 m3/h. It is bituminous coal 44 with low mine gas emission rate and coa
8、l spontaneous combustion tendency, and its a coal seam liable to explosion.Based on the geological condition of the mine, I bring forward four available project in technology. The first is vertical shaft development with two mining levels and the extension of inclined shaft go to -700 m; thr second
9、is vertical shaft development with two mining levels and the extension of vertical shaft go to -700 m; the third is vertical shaft development with two mining levels and the extension of inclined shaft go to -820 m; the last is vertical shaft development with two mining levels and the extension of v
10、ertical shaft go to -820 m. The first project is the best comparing with other three project in technology and economy. The first level is at -450 m, The second level is at -700 m, Because a major fault lies in the center of mine field, the mine field is divided into the north section and the south
11、section, the south section is one level service scope, and the north section is two level service scope.Designed first mining district makes use of the method of preparation in mining area, the length of working face is 223 m, which uses fully-mechanized coal mining technology, and fully caving meth
12、od to deal with goaf. The working system is “three-eight”,with two teams mining, and the other overhauling. Every mining team makes three working cycle, with six working cycle everyday. Advance of working cycle is 0.6 m, and quantity of 5432.16 ton coal is makedeveryday.Main roadway makes use of bel
13、t conveyor to transport coal resource, and mine car to be assistant transport. Main shaft makes use of skip to transport coal resource, when subsidiary shaft makes use of cage to be assistant transport. In the prophase of mining the mine makes use of centralized ventilation method,when in the evenin
14、g of mining the mine makes use of areas ventilation method. At the easy time of mine ventilation, the total air quantity is 4608 m3 per minute, the total mine ventilation resistance is 2096 Pa, the coefficient of resistance is 0.355 Ns2/m8, equivalent orifice is 2.03 m2. At the difficult time of min
15、e ventilation, the total air quantity is about 4608 m3 per minute, the total mine ventilation resistance is 2746 Pa, the coefficient of resistance is 0.465 Ns2/m8, equivalent orifice is 1.74 m2. The cost of the designed mine is 110 yuan per ton.The monographic study is bolting technology of deep wel
16、l drawed by MATLAB 7.1.The translated academic paper is about effects of frequency and grouted length on the behavior of guided ultrasonic waves in rock bolts。Keywords:shaft; up-dip and down-dip minging; large mining height; single thunnel drivage; centralized juxtapose ventilation.目 录一般设计部分1 矿区概述及井
17、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82 井田境界和储量112.1井田境界112.2 矿井工业储量132.3矿井可采储量133 矿井工作制度、设计生产能力及服务年限183.1矿井工作制度183.2矿井设计生产能力及服务年限184 井田开拓204.1井田开拓的基本问题204.2 矿井基本巷道305 准备方式采区巷道布置425.1煤层地质特征425.2采区巷道布置及生产系统435.3采区车场选型设计466 采煤方法506.1采煤工艺方式506.2回采巷道布置627 井下运输667.1概述667.2采区运输设备选择697.3大巷运输设备选择708 矿井提升738.1概述73
18、8.2主副井提升739 矿井通风及安全789.1矿井通风系统选择789.2 采区及全矿所需风量829.3矿井通风总阻力计算869.4选择矿井通风设备959.5防止特殊灾害的安全措施9910 矿井基本技术经济指标101专题设计部分1 引言1042 开采深度与巷道围岩的变形关系1042.1中国的研究1042.2德国的研究1052.3前苏联的研究1063 深井巷道锚杆支护的关键理论与技术1073.1深井巷道锚杆支护理论基础1073.2深部巷道锚杆支护作用机理1083.3深部巷道锚杆支护技术1134 工程实例1174.1巷道地质及生产条件1174.2地应力测量1184.3巷道围岩稳定性分类及计算机辅助
19、设计1184.4巷道支护设计1184.5支护质量监测1204.6支护效果和经济效益分析1265 结论126参考文献128翻译部分英文原文130中文译文141致谢149一般部分第150页中国矿业大学2008届本科生毕业设计1 矿区概述及井田地质特征1.1矿区概述1.1.1交通地理位置张双楼煤矿位于徐州市西北,距徐州市约79 km,在江苏沛县安国镇境内,东距大屯煤电公司6.5 km,南距沛县城16.5 km,东有沛屯铁路和陇海线相连,矿区的徐沛公路北上山东,南达上海,交通甚为便利。图1-1 张双楼矿井交通位置图矿区(居民点)现状由张双楼、陈庄、高庄、梅庙、梅海子、油坊口、袁庄七个自然村组成,居住总
20、人口3461人,910户。交通位置如图1-1。1.1.2地形地貌和水文情况本井田地表属黄泛冲积平原,地面平坦,地面标高+35+39 m,地势西高东低,地表水系不发育,区内东缘微山湖,有徐沛河,南有丰沛河京经杭大运河注入微山湖。1.1.3矿区经济状况矿区工业发展迅速,已形成铸造、酿酒、缫丝、纺织、塑编、木材加工、机械制造等八大工业体系,工业产品100余种。张双楼工业园区,形成了板皮加工、塑料编织、铸造加工、机械制造四大主导产业。矿区农副产品资源丰富,有优质小麦、“无公害水稻”、“高蛋白玉米”等粮食作物7.4万亩,芸豆5000 亩,黄皮洋葱1000 亩、脱毒土豆1000 亩、东北毛茄1000 亩、
21、越冬甘兰1000 亩、大沙河无籽西瓜14000 亩、优质红富干苹果4000 亩、桑园5000 亩。有年出栏300 万羽的肉鸭养殖基地、年出栏150 万羽的合同鸡养殖基地、有大型的波尔山羊养殖基地。1.1.4矿区电力供应矿井110 kV主电源引自沛县220 kV变电站,备用电源引自大屯110 kV变电站,由110 kV线路送至距矿井110 kV变电站。1.1.5矿区的气候条件本区属南温带黄淮区,气象具有长江流域的过渡性质,接近北方气候特点,冬季寒冷干燥,夏季炎热多雨,春季有干旱及寒潮、霜冻等自然灾害,但四季分明,气候温和。降水量:年平均降水量811.7 mm,最大年降水量1178.9 mm,最小
22、年降水量550 mm,降水多集中于7、8、9月份,占全年降水量的5070%,1、2、3月份为枯水季节。蒸发量:年平均蒸发量1873.5 mm,年最小蒸发量1273.9 mm。气 温:年平均气温13.8 ,最高气温40.7 ,最低气温-21.3 。主导风向:全年以东南,偏东风为最多,年平均风速3.2 m/s。本区属季节性大陆性气候。1.1.6地震自公元462年以来,根据不完全统计,本区共记载有感地震30余次,其中影响较大的有1968年7月25日山东莒县郯城8.5 级地震,1937年8月1日山东菏泽7级地震等。本区属于华北地震区,据郯庐断裂100 余公里,该断裂为一长期活动的断裂带,亦为强地震带,
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