孙村煤矿1.8Mta新井设计【专题浅析深井巷道锚杆支护技术】.doc

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。一般部分为孙村煤矿1.8 Mt/a的新井设计。孙村煤矿位于山东省泰山东侧的新泰市新汶办事处孙村镇境内，地处新汶煤田东部，位居山东新汶矿业集团公司腹地，东与张庄煤矿，西与良庄煤矿相邻，南依蒙山山系，北与莲花山相望，柴汶河自东向西流经井田之上。井田走向（东西）长平均约7.82 km，倾向（南北）长平均约5.49 km，井田水平面积为41.55 km2。主采煤层一层，即2号煤层，平均倾角15，厚约5.0 m。井田工业储量为301.12 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

2、；矿井正常涌水量为0.059 m3/h，最大涌水量为0.108m3/h；煤层硬度系数f=2.3，矿井绝对瓦斯涌出量为2.7m3/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：立井五水平开采，暗斜井延深至；方案二：立井三水平开采，暗斜井延伸；方案三：主斜副立五水平上山开拓，暗斜井延伸；方案四：主斜副立三水平上山开拓，暗斜井延伸。通过技术经济比较，最终确定方案一为最优方案。将主采煤层划分为五个水平，一水平标高-250 m，二水平标高-600 m，三水平标高-900 m，四水平标高-1100 m，五水平标高-145

3、0 m。设计首采区采用采区准备方式，工作面长度180 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0.8 m，日产量5624.64t。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46

4、08 m3/min，矿井通风总阻力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煤炭绿色开采的激励机制研究的论文，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

5、 can be 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

6、 part of 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

7、 reserves 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

8、 and coal 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

9、 second 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 extens

10、ion of vertical 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 th

11、e south 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 cav

12、ing method 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 us

13、e of belt 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 th

14、e evening 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 tim

15、e of mine 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

16、deep well 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41.3 煤 层 特 征72 井田境界及储量112.1 井田境界112.2 储 量122.2.1 矿井工业储量122.2.2煤层采用块段法计算工业储量122.2.3矿井可采储量