神府海湾一矿开采设计.doc
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- 海湾 开采 设计
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1、 摘 要本次设计开采的神府海湾一矿隶属神府经济开发区海湾煤矿有限公司,位于陕西省榆林市神木县北部,行政区划隶属神木县孙家岔所辖。本井田位于神木北部矿区中南部,其开采范围西部与北部于海湾煤矿范围边界一致,西南部大致以2-2煤层自燃边界为界,东西倾斜宽36143731m,南北走向长26302943m,面积约10.457km2,开采深度为+1153m+960m标高。矿区地层总体走向为北西,倾向南东,倾角1左右的单斜构造,地质条件简单,水文地质条件简单,正常涌水量60m3/h,最大涌水量120m3/h。设计开采2-2上和2-2煤层,煤层倾角1,层间距平均20m。2-2上平均煤厚7.7m,全部可采;2-
2、2煤层平均煤厚3.2m,局部可采。矿井地质资源量121.107Mt,设计可采储量80.217Mt,设计生产能力1.2Mt/a,服务年限52a。本矿井采用斜井多水平盘区式开拓,设置主、副斜井,回风斜井三条井筒。在两层煤分别设置两个水平,第一水平设在2-2上号煤层,水平标高为+1123m。采用分层大巷布置,前期在第一水平进行开拓巷道布置,后期将井筒延深至第二水平。矿井采用分层大巷布置,建井时首先进行2-2上煤层的开拓和准备。设在2-2上煤层的运输大巷(敷设带式输送机)、回风大巷沿2-2上煤层底板布置,辅助运输大巷(行驶无轨胶轮车)沿2-2上煤层顶板布置。2-2上煤层采用倾斜分层长壁综采下行垮落采煤
3、法,2-2煤层采用一次采全高长壁综采采煤法。本矿井属低瓦斯矿井,通风系统采用中央并列式通风方式,抽出式通风方法。关键词:斜井开拓 倾斜分层 长壁综采 中央并列式 设计类型:模拟型Subject: The Mining Design of the First Mine in ShenFu Haiwan Coal MineSpecialty: Mining EngineerAbstractThis design mining in shenfu economic development zone, a mine under the shenfu Haiwan coal mine, located
4、in Northern Shenmu in Yulin city of Shanxi Province, administrative region under the Shenmu County Suns bifurcated jurisdiction. Coal field in Northern Shenmu mining area in the South, its exploitation scope range boundary line West and North from the Gulf coal mine,Southwest is bounded roughly on t
5、he 2-2 of coal spontaneous combustion in the borders, tilt 36143731m wide, North-South long 26302943m, an area of about 10.457km2, elevation of mining depth of +1153m+960m. General trend of mine stratigraphy for the North West, South East, angle of about 1 monoclinic structure, simple geological con
6、ditions, hydrogeological conditions of simple, normal water 60m3/h, the greatest outflow 120m3/h. Design 2-2上 mining and 2-2 coal-bed methane, coal seam dip angle 1 , distance 20m. 2-2上 average coal-layer thickness on 7.7m, all recoverable; 2-2 3.2m average coal seam thickness, local mining. Mine ge
7、ological resources 121.107Mt, design recoverable reserves 80.217Mt, design production capacity of 1.2Mt / a, length of service 52a.The mine uses inclined to develop multi-level panel type, set the main and auxiliary inclined shaft, three return air inclined wellbore. Two levels were set in two layer
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