江曲矿业集团孙庄煤矿矿井开采设计--大学论文

江曲矿业集团孙庄煤矿矿井开采设计 摘要：孙庄煤矿隶属于江曲矿业集团，位于江西省中部，其煤层赋存丰富，地质条件简单，顶、底板稳定，且底板为坚硬的砂岩。另外，其便利的交通条件为煤的开采和外运提供了许多方便。本矿井的设计是以孙庄矿原有的丰城矿区孙庄井田精查地质报告、B4煤层底板等高线和地质综合柱状图为依据的。矿区内可采煤层为 B4煤层，其煤层平均厚度为 4.8m。井田的走向长为 4㎞，倾斜长为 3.19㎞，井田面积 13.02㎞2，可采储量6935.68 万 t，煤层的平均倾角为 11°；相对瓦斯涌出量 10 m3/t，为高瓦斯突出矿井。根据以上基本条件，结合相关设计法律规范和资料，该矿井井型设计为 60 万t/a，服务年限 82.6a。通过对 5 个初选方案的技术分析及其中 2 个方案多方面的经济比较，全矿井分 3 个水平进行开拓，一、二水平为双立井，三水平为暗斜井开拓。采煤方法为倾斜分层走向长壁下行垮落采煤法，选用综采回采工艺进行开采。立井采纳箕斗提煤，副井采纳罐笼提升材料和运送人员；风井布置采纳中央分列式，通风方式为抽出式，风机选用离心式风机抽风。采纳“三八制”工作制度，一个综采工作面达产，满足了合理集中生产的要求。关键词： 一、二水平双立井，三水平暗斜井开拓；综采；倾斜分层，走向长壁；抽出式Preliminary Mine Design of Sunzhuang Coal Mine Pan Tuan-Li(Mining engineering, Xian University of Science and Technology, Xian 710054, China)Abstract：The Sunzhuang coal mine subordinated to the Jiangqu mining bureau is located in the middle of Jiangxi Province. The reserve in the coalfield is richly, and geological condition is easy. The roof and floor is stable, and the floor is hard sandstone. Moreover, The transportation system of the field is convenient to bring coal to outward.Average thickness of coal bed in this coalfield is 4.8m. The well field length along strike is 4㎞, and the length is 3.19㎞ on the inclination, The area of the coalfield is 13.02 km2. The usage reserve is 6935.68mt. Average inclination angle of the coal bed is 11°.The gas grade in the mine is high.Based on the bas...