司马煤矿1.8Mta新井设计.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。一般部分为司马矿1.8 Mt/a的新井设计。司马矿井田位于山西省长治市西南部，沁水煤田长治勘探区的东部边缘地段，太（原）焦（作）铁路从井田西缘穿过，接轨于太焦铁路小宋车站的经坊煤矿铁路专用线从矿井工业场地西缘通过。交通十分便利。井田走向（南北）长平均约4.53 km，倾向（东西）长平均约5.04 km，井田水平面积为29.494 km2。主采煤层一层，即3号煤层，平均倾角4，厚约6.62 m。井田工业储量为268.86 Mt，可采储量134.90 Mt，矿井服务年限为55.94 a。井田地质条件简单。表土层平均厚度110 m；矿井

2、正常涌水量为220 m3/h，最大涌水量为300 m3/h；矿井绝对瓦斯涌出量为1.74 m3/min，属低瓦斯矿井；煤层无自燃发火倾向，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：立井单水平开拓；方案二：立井单水平开拓，工业广场靠近地面铁路；方案三：立井单水平岩石大巷；方案四：立井单水平煤层大巷。通过技术经济比较，最终确定方案四为最优方案。由于3号煤层平均倾角为4，为近水平煤层，煤层垂高260 m，不需要划分多个水平。设计首采区采用带（盘）区准备方式，工作面长度210 m，采用综采放顶煤采煤法，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

3、产班每班2个循环，日进4个循环，循环进尺0.8 m，日产量5456 t。大巷采用带式输送机运煤，辅助运输采用柴油机齿轨卡轨车运输。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。矿井初期采用中央并列式通风，后期在设一风井。通风容易时期矿井总需风量3516.5 m3/min，矿井通风总阻力600.4 Pa，风阻0.17 Ns2/m8，等积孔2.89 m2，矿井通风容易。矿井通风困难时期矿井总风量3516.5 m3/min，矿井通风总阻力1107.5 Pa，风阻0.32 Ns2/m8，等积孔2.11m2，矿井通风容易。设计矿井

4、的吨煤成本110 元/t。专题部分题目是：“浅谈大倾角综采面设备稳定性机理及其控制方法”。分析了支架、采煤机、输送机失稳机理，解释了设备在大倾角开采及俯采时失稳或无法正常工作的原因。翻译部分是一篇关于长壁放顶煤开采的FLAC3D数值模拟的论文，英文原文题目为：3D numerical modeling of longwall mining with top-coal caving。关键词：立井；近水平厚煤层；综采放顶煤；沿空掘巷；中央并列式ABSTRACTThis design can be divided into three sections: general design, monogr

5、aphic study and translation of an academic paper.The general design is about a 1.8 Mt/a new underground mine design of Sima coal mine. Sima coal mine lies in the southwest of Changzhi city, Shanxi province. As the Jingfang coal mine special railway through from the western margin of the mine industr

6、ial sites, the traffic is very convenient. Its about 4.53 km on the strike and 5.04 km on the dip, with the 29.494 km2 total horizontal area. The minable coal seam of this mine is only 3 with an average thickness of 6.62 m and an average dip of 4. The proved reserves of this coal mine are 268.86 Mt

7、and the minable reserves are 134.90 Mt, with a mine life of 55.94 a. The geological condition of the mine is relatively simple. The normal mine inflow is 220 m3/h and the maximum mine inflow is 300 m3/h. The coal mine with the absolute gas emission in 1.74 m3/min, is a low-gas coal mine and without

8、coal spontaneous combustion tendency.Based on the geological condition of the mine, I bring forward four available project in technology. The first is vertical shaft development with single mining levels; the second is vertical shaft development with single mining levels and the industrial square ne

9、ar the railway; the third is vertical shaft development with roadway layout in the rock; the last is vertical shaft development with roadway layout in coal. The forth project is the best comparing with other three project in technology and economy. Because the No. 3 coal seam with average inclinatio

10、n of 4 , is flat seam. Designed first mining district makes use of the method of preparation in mining area, the length of working face is 210 m, which uses comprehensive mechanization puts in the top coal technology, and fully caving method to deal with goaf. The working system is “three-eight”, wi

11、th two teams mining, and the other overhauling. Every mining team makes two working cycle, with four working cycle everyday. Advance of working cycle is 0.8 m, and quantity of 5456 ton coal is produced everyday. and without the need to divide the multiple levels.Main roadway makes use of belt convey

12、or 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 evening of mi

13、ning the mine makes use of areas ventilation method. At the easy time of mine ventilation, the total air quantity is 3516.5 m3 per minute, the total mine ventilation resistance is 600.4 Pa, the coefficient of resistance is 0.17 Ns2/m8, equivalent orifice is 2.89 m2. At the difficult time of mine ven

14、tilation, the total air quantity is about 3516.5 m3 per minute, the total mine ventilation resistance is 1107.5 Pa, the coefficient of resistance is 0.32 Ns2/m8, equivalent orifice is 2.11 m2. The cost of the designed mine is 110 yuan per ton.The monographic study entitled “Discussion on Equipment S

15、tability Mechanism and its Control Method of Greater Tilt Angle Mining Face”. It analyzed the instability mechanism of the shearer and the conveyor, and explained the reasons of the equipment to instability or does not work in the big dip mining and underhand stope.The translated academic paper is a

16、bout 3D numerical modeling of longwall mining with top-coal caving.Keywords：shaft; Flat seam; comprehensive mechanization puts in the top coal technology; along goaf drivage; centralized juxtapose ventilation.目 录一般部分1 井田概况及地质特征11.1 矿区概况11.2 井田地质特征31.3 煤层特征132 井田境界和储量242.1 井田境界242.2 矿井工业储量252.3 矿井可采储量263 矿井工作制度、设计生产能力及服务年限303.1 矿井工作制度303.2 矿井设计生产能力及服务年限304 井田开拓324.1 井田开拓的基本问题324.2 矿井基本巷道415 准备方式带区巷道