平煤二矿2.4Mta新井设计.doc
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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。一般部分为平煤二矿2.4 Mt/a新井设计。平煤二矿开位于河南省平顶山市,交通便利。井田走向(东西)长约4.9 km,倾向(南北)长约5.4 km,井田总面积为25.34km2。主采煤层为四21(戊10)煤,倾角68,平均7。煤层平均厚度为3.65 m。井田地质条件较为简单。井田工业储量为249.57Mt,矿井可采储量237.24 Mt。矿井服务年限为70.61a,涌水量不大,矿井正常涌水量为548 m3/h,最大涌水量为1070 m3/h。矿井相对瓦斯涌出量为5.94 m3/t,为低瓦斯矿井。井田为双立井单水平开拓。大巷采用胶带运输机运
2、煤,辅助运输采用无轨胶轮车运输。矿井通风方式为中央分列式和并列式通风。矿井年工作日为330 d,工作制度为“四六”制。专题部分题目为大断面硬岩巷道快速掘进技术,从大断面硬岩巷道实际掘进中存在的问题出发,分别从破岩、装岩、转运、支护和施工组织管理等五个方面,提出了相应的优化方式和改进措施,从而加快大断面硬岩巷道的掘进速度。翻译部分是国际岩石力学与采矿科学杂志中关于综采放顶煤应力分析的论文,英文题目为Stress analysis of longwall top coal caving,中文题目为“长臂放顶煤采煤法应力分析”。关键词:立井;盘区;中央分列式通风ABSTRACTThe three p
3、arts is included in this design,i.e.,the general part, special subject part and translation.The general part is a new design of Pingdingshan mine with a production of 2.4 million t/a. Pingdingshan mine lines in Pingdengshan city, HeNan province. The traffic of road and railway is very convenience to
4、 the mine. The run of the minefield is 4.9 km ,the width is about 5.4 km, well farmland total area is 25.34 km2. No. 4 are the main coal seam, and its dip angle is 68, 7 for average. The thickness of the mine are about 3.65 m. The geological conditions of the minefield is relatively simple.The prove
5、d reserve of the minefield is 237.24 Mt. The designed productive capacity is2.4 Mt/a, and the service life of the mine is 70.61 years. The normal water flow of the mine is 548 m3/h and the max flow of the mine is 1070 m3/h. The relative gas emission rate of the mineral well is 5.94 m3/t, for low gas
6、 mineral well.The well farmland is a single level with a shaft to expand. The coal is transported by the belt conveyer in the main roadway and 1 t mine car is used as the auxiliary transportation equipment. The way of mine ventilation is central boundary ventilation.The working system “four-six” is
7、used in Pingdingshan mine. It produces 330d/a.The title of the special subject part is “Fast excavation Tecnology of huge section hard rock tunnel”. The optimizing methods and measures to fast excavation Tecnology of huge section hard rock tunnel is developed from five depart:broking rock,loading ro
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