鐵廠溝礦急斜臨界角煤層綜放開采高產高效關鍵技術研究.pdf

1、西安科技大學碩士學位論文鐵廠溝礦急斜臨界角煤層綜放開采高產高效關鍵技術研究姓名：陳建強申請學位級別：碩士專業(yè)：采礦工程指導教師：石平五黃慶享20070106Subiect：StudyofkeyTechnologyofHighYieldandEfficiencyonFullyMechanizedTopCoalCavinginSteepCriticalAngleSeaminTiechanggouCoalmineSpecialty：Minin

2、gEngineeringName：ChenJianqiang(Signature)Instructor：ShiPingwuHuangQinxiang(Signature)(Signature)ABSTRACTAccordingtominingconditionsinTiechanggoucoalmine，techniquesofhighyieldandefficiencyonfullymechanizedtopcoalcaving，in

3、cludinglanewaysettingsatworkingface，whichespeciallyfocusonphaseheight，coaldrawinglawandextractiontechnologywasstudiedinsteepthickseamsbymeansofsimilarsimulationengineeringcalculationandstatisticalanalysisBecauselengthoft

4、heworkingfaceWaslimitedbythicknessofcoalseam，oneofthemaintechniqueslargelyincreasingoutputistoimprovethephaseheight，andtominimizethetriangularcoallossesattheprocessofincreasingphaseheightThroughsimulationanalysisofthedif

5、ferenthi曲valueafterstudying45。coalsealncharacteristics，rockdeformationcharacteristicsandit’Seffecttotopcoal’SrecoveryratiowereresearchedItprovidesreferencefordeterminingareasonablelevelphaseheightBymearlsofsimulationstud

6、iesandcomparativeanalysisoftopcoalcavingundertwodifferentcohesionincoal，thebasiccharacteristicsofdrawingWasobtainedanditprovidesreferenceforthepracticeofminingtechnologyDistrictpreparedlanewaylayoutincludinglanewaysuppor

7、tisanimportantcomponentofminingmethodAscientificandrationallayoutofthelanewayandthelanewaysupportshouldworktoimprovepmductivitysimplifyingminingtechnologyandcreateconditionstoensureworksafetyInsteepthickseammining，thelan