姚桥煤矿400万吨新井设计.docx

1、中国矿业大学毕业论文指导教师评阅书指导教师评语（基础理论及基本技能的掌握；独立解决实际问题的能力；研究内容的理论依据和技术方法；取得的主要成果及创新点；工作态度及工作量；总体评价及建议成绩；存在问题；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论文评阅教师评阅书评阅教师评语（选题的意义；基础理论及基本技能的掌握；综合运用所学知识解决实际问题的能力；工作量的大小；取得的主要成果及创新点；写作的规范程度；总体评价及建议成绩；存在问题；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 况提 出 问 题回 答 问 题正 确基本

2、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：一般设计部分、专题设计部分和翻译部分。 一般部分为姚桥煤矿400万吨新井设计。姚桥煤矿位于徐州市沛县境内，交通十分便利。井田走向（东西）长平均约9.08 km，倾向（南北）长平均约4.08 km，井田水平面积为37.05 km2。主采煤层一层，即7#煤层，平均倾角11，厚约8.50 m。井田工业储量为502.43 Mt，可采储量358.20 Mt，矿井服务年限为64.0 a。井田地质条件简单。表土层平均厚度184 m

3、；矿井正常涌水量为508m3/h，最大涌水量为609 m3/h；矿井绝对瓦斯涌出量为1.34 m3/min，属低瓦斯矿井；煤层有自燃发火倾向，发火期46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，直接延深至-850 m水平，采用岩石大巷；方案二：立井两水平开采，直接延深至-850 m水平，煤层大巷；方案三：立井三水平开采，直接延深至-850 m水平；方案四：立井三水平开采，暗斜井延伸至+850 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-850 m。设计首采区采用采区准备方

4、式，工作面长度252 m，采用放顶煤采煤法，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11478 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。主井装备一对多绳32 t箕斗，副井装备一对1.5t矿车双层四车罐笼和一个材料罐笼带平衡锤担负辅助运输任务。矿井采用两翼对角式通风。通风容易时期矿井总需风量4625 m3/min，矿井通风总阻力884.5 Pa，风阻0.149 Ns2/m8，等积孔3.08m2，矿井通风容易。矿井通风困难时期矿井总风量4625 m3/min，矿井通风总阻力2390.3Pa

5、，风阻0.40 Ns2/m8，等积孔1.88 m2，矿井通风中等。专题部分题目是建筑物下采煤关键技术分析。翻译部分是一篇关于长壁工作面平巷顶板支护设计的论文，英文原文题目为：A method for the design of longwall gateroad roof support.关键词：立井；上下山开采；放顶煤；两翼对角式 ABSTRACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The g

6、eneral design is about a 4.0 Mt/a new underground mine design of yaoqiao coal mine. yaoqiao coal mine lies in xuzhou,jiangsu province, the traffic is very convenient. Its about 9.08 km on the strike and 4.08 km on the dip,with the 37.05 km2 total horizontal area. The minable coal seam of this mine i

7、s only 7 with an average thickness of 8.5 m and an average dip of 11. The proved reserves of this coal mine are 502.43 Mt and the minable reserves are 358.20 Mt, with a mine life of 64.0 a. The geological condition of the mine is relatively simple. The normal mine inflow is 508 m3/h and the maximum

8、mine inflow is 609 m3/h. and mine gas emission rate is low 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 projects in technology. The first is vertical shaft development with two mining l

9、evels and the extension of vertical shaft go to -850 m with rock roadway; the second is vertical shaft development with two mining levels and the extension of vertical shaft go to -850 m with coal roadway; the third is vertical shaft development with three mining levels and the extension of inclined

10、 shaft go to -850 m; the last is vertical shaft development with three mining levels and the extension of vertical shaft go to -850 m. The first project is the best comparing with other three projects in technology and economy. The first level is at -450 m, The second level is at -850 m.Designed fir

11、st mining district makes use of the method of preparation in mining area, the length of working face is 252 m, which uses top coal caving mining technology. The working system is “three-eight”, with two teams mining, and the other overhauling. Every mining team makes two working cycles, with six wor

12、king cycles everyday. Advance of working cycle is 0.8 m, and quantity of 11478 tons coal are made everyday.Roadway belt conveyor to transport coal and auxiliary transport 1.5 t fixed box tramcar. The main shaft and equipment many rope 32 t skip the auxiliary shaft equipment is a pair of the 1.5t tra

13、mcar double cage of four vehicles and a material cage with a counterweight responsible for auxiliary transport. In the prophase of mining the mine makes use of Two wings of diagonal ventilation method. At the easy time of mine ventilation, the total air quantity is 4625 m3 per minute, the total mine

14、 ventilation resistance is 884.5 Pa, the coefficient of resistance is 0.149 Ns2/m8, equivalent orifice is 3.08 m2. At the difficult time of mine ventilation, the total air quantity is about 4625 m3 per minute, the total mine ventilation resistance is 2390.3 Pa, the coefficient of resistance is 0.40 Ns2/m8, equivalent orifice is 1.88 m2. The monographic study is the key technology of coal mining under buildings.The translated academic paper is about a method for the design of longwall gateroad roof support.Keywords：shaft; up and down-dip minging