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1、摘要本次设计是忻州窑矿11#、14#煤层，煤层厚度分别为6.2m、2.3m，煤层间距为17m。据井田外围资料调查该井田为高瓦斯矿井，上组煤瓦斯涌出量平均为14.24m3/t，下组煤平均为35.22m3/t。煤层均有爆炸危险性。煤的自然倾向等级为不易自燃。根据矿井涌水量预测，该矿井正常涌水量为2300m3/d，。大同矿区位于晋北，地跨大同、左云、右玉、山阴等五个县市。忻州窑矿位于大同煤田东北端，距大同市17.5Km，距口泉站5.3Km。井田内有五九公路贯穿，交通方便。采用立井开拓，主、副立井及风井的断面分别为33.2m2、19.625m2、9.
2、073m2。井田开拓方式为斜立井、石门双水平开拓，共开掘有四个进风井（新副井、大斜井、主井、排矸立井）和两个回风井（东盘区风井和西盘区风井）。井田共划分有两个盘区，开采煤层有11#、14#，目前矿井生产区队设置有：两个综放队和五个机掘队。矿井达产时的首采工作面位于一号盘区，该盘区划分为11个条带，工作面长度为120m，推进长度为1203m，回采工艺采用综合机械化后退式采煤法，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。65XinzhoukilnoreminepitminingdesignA
3、bstract:WantsthisdesignisXinzhoukilnore11#,the14#coalbed,coalbedthicknessrespectivelyis6.2m,2.3m,thecoalbedspacingis17m.AccordingtothewellfieldperipherymaterialinvestigatesthiswellTianWeigaothegasminepit,onthegroupcoalgasgushesoutthequantityisequally14.24m3/t,getsdownthegro
4、upcoalisequally35.22m3/t.Thecoalbedhastheexplosionhazard.Coalpropensityrankfornoteasyspontaneouscombustion.Wellsupthewatervolumeaccordingtotheminepittoforecastthat,thisminepitwellsupthewatervolumeisnormally2300m3/d.TheDatongminingareaislocatednorththeJin,crossDatong,leftclo
5、ud,Youyu,northslopeofamountainandsoonfivecountycities.TheXinzhoukilnoreislocatedtheDatongcoalfieldnortheastend,isapartfromDatong17.5Km,isapartfromthemouthspringtostand5.3Km.Inthewellfieldhas59roadpenetrations,thetransportationisconvenient.Usestheverticalshaftdevelopment,the
6、primaryandsecondaryverticalshaftandtheairshaftcrosssectionrespectivelyis33.2m2,19.625m2,9.073m2.Thewellfielddevelopmentwayfortheslantingverticalshaft,theShimendoubleleveldevelopment,altogetherdigssomefourtoentertheairshaft(newvice-well,bigslanthole,hostwell,platoonganguever
7、ticalshaft)andtworeturnstotheairshaft(eastpanelairshaftandwestpanelairshaft).Thewellfieldaltogetherdivideshastwopanels,theminingcoalbedhas11#,14#,atpresenttheminepitproductiondistrictcontingentestablishmentincludes:Twosynthesesputtheteamandfivemachinedigtheteam.Theminepitre
8、achesproduceswhentheheadtopicktheworkingsurfacetobelocatedanindexdialarea,thispane
