设计说明书(修改).doc

摘 要 本次设计是大同矿区四老沟矿4#煤层。该矿位于大同煤田东北端，距大同市25Km，距口泉站5.3Km。井田内有公路贯穿，交通方便。 据井田地质资料：该井田煤层平均厚度为2.1m，经鉴定为低瓦斯矿井，瓦斯相对涌出量平均为0.1m3/t。煤层有爆炸危险性。煤的自燃倾向等级为易自燃。根据矿井涌水量预测，该矿井正常涌水量为3800m3/d。 设计采用斜井煤门单水平开拓方式，共开掘有两个进风井（主斜井、副斜井）和一个回风井。井田共划分有四个盘区，开采煤层为4＃。矿井采煤方法为综合机械化开采方式，综合机械化掘进，生产区队设置有：一个综采队和两个机掘队。 矿井达产时的首采工作面位于401盘区，该盘区划分为20个区段，工作面长度为200m，推进长度为2000m，回采顺序采用后退式、回采工艺中厚煤层单一走向长壁综合机械化采煤法，采用“四·六制”作业制度。采空区采用全部跨落法管理顶板。 关键词矿井开拓采煤方法综合机械化采煤 ABSTRACT The design is mine in Datong Coal Mining Area Silaogou 4 # coal seam. Datong Coal mine located in north-east side, from the City 25Km. Mine Highway runs through there and convenient. According to geological data mine: the mine seam thickness of 2.1m, was identified as the low-gas coal mine, coal gas emission on the group average of 0.1 m3 / t. The danger of coal explosion. Level of the natural tendency of coal to spontaneous combustion. Mine discharge in accordance with the forecast, the mine water for normal Chung 3800m3 / d. Design uses a single level of Shihmen inclined to open up the way of opening into the ventilation shaft there are two (main slope, the Deputy inclined) and three return air shaft . Mine were set into eight areas, the exploitation of coal for 4#. Mine mining method for the comprehensive mechanization caving mining methods, mechanized tunneling, the production team set up are: a mechanized caving team and two local excavation team. Mine production mining face at the time of the first panel at the East, , face length of 200m, to promote the length of 2000m, the order of the use of retreat mining-type, in single pass coal mining technology of mechanized top coal caving mining Coal Act, the system 4·6 operating system. Goaf method make use of all cross-loading roof management. Keywords:mine development; mining methods;mechanized mining  目录 矿井概述及井田地质特征 1.1矿区概述 1.1.1地理位置 大同矿区位于晋北，地跨大同、左云、右玉、山阴等五个县市。四老沟矿位于大同煤田东北端，大同市区西南，直线距大同市25，北邻同家梁矿，东接白洞矿，西北部相邻马脊梁矿和燕子山矿，西南部相邻燕崖矿，东南以大同组底部煤层露头线为界，井田东西走向6.2公里，南北倾向2.6公里，井田面积37.8平方公里。地理坐标为东经112°56′36″~