北皂煤矿井田开延深设计毕业设计论文.doc

摘 要 北皂煤矿20多年的开采煤炭资源储量，近年来经济快速增长、城镇建设扩张等造成了“三下”压煤量的逐年增加，加剧了煤炭资源量不足的局面。为扩大矿井后备资源量，有效延长矿井服务年限，保持企业平稳发展，北皂煤矿有必要在海域域为北皂煤矿陆地向北部的自然延伸，东与柳海煤矿相邻，西北至煤4露头，南至渤海海岸线，地理坐标：东经12019′45″— 120°27′33″，北纬37°41′32″—37°48′02″ Mt，可采储量20.35 Mt。延伸水平设计生产能力为90Mt，延伸水平服务年限为16.2年。年工作日为330d，工作制度三、制h。 在井田开拓延深设计中，经过方案比较后，确定采用三条暗斜井的延深方式，并将海域划分成三个采区开采。对二带区的设计中，经过方案比较，最终确定采用倾斜长壁后退式采煤法开采海域煤2，回采工艺为综合机械化采煤，工作面顶板管理方法为全部垮落法。矿主提升系统，目前全部采用皮带机运输方式。暗斜井主要负担提矸、、下材料、升降设备等任务。ABSTRACT 20 years of the beizao coal mining caused by the scarcity of coal resources and reserves in recent years, mine field surrounding the rapid economic growth, urban construction and expansion of the three under coal volume increased year by year, increased the amount of coal resourcessituation. In order to expand the mine reserve resources, effectively extending the service life of mine, to maintain the stable development of enterprises beizao coal necessary for coal mining in the sea. Sea areas for Beizao coal land strata to the north of the natural extension, coal mine adjacent to east and Liu Hai, northwest to the coal outcrop, south Bohai Sea coastline, geographical coordinates: longitude 120°19′45″— 120°27′33″north latitude and 37°41′32″—37°48′02″, an area of ??5.786Km2. An extension of the level of the main coal layer of coal, coal seam average thickness of 4.44m, the average coal seams dip about 10 °, the geological reserves of 33.13 the Mt of recoverable reserves of 20.35 the Mt. Extension of the level of design production capacity of 90Mt, an extension of the level of the service life of 16.2 years. Of working days for the 330d, the system of work for three to eight systems, two classes of production, maintenance intervals, daily net increase for 16h. In mine field development deepening design, through comparison of these schemes, determined using three internal inclined shaft deepening method. The design of the two stripe, after the program finalized inclined longwall retreat mining method in mining sea areas coal mining techn