1、東北大學(xué)碩士學(xué)位論文深部礦體階段開采順序的選擇及數(shù)值模擬研究姓名：劉煒申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：采礦工程指導(dǎo)教師：李元輝20041201東北大學(xué)碩士學(xué)位論文AbstractTheStudyandSimulationofStageExploitationSequenceofDeepOrebodyAbstractInordertoenhancemineeconomicprofitsandmeettheenvironmentalprotecti

2、onsdemandthepaperhasdiscussedthequalityofthesetwokindsofthestageminingsequences.Althoughthetraditionaldownwardminingismoreripperthanupwardminingitsshortcomingexitsmuchtoo.Withincreasingdepthoftheminingthecostofhoistingwa

3、sterockanddischargingwastewaterraiseslargelymoreoverthewasterockandwaterarethemainsourcestocausetheenvironmentalpollution.Amongthemthemaintenanceexpenseofthewelllaneiscrescenttheeconomictoo、、匕Ifadoptingtheupwardminingmet

4、hodthoughinvestmentisbenefitsarereducedlargeininitialstagecanavoidtheseshortcomingwhichdownwardminingsequencemade.andthenextkeyfactoriswhethertherockstrengthcanbearthestresswhichtheexploitationcreated.Thereforebesidesthe

5、comparisonoftheeconomyandtheenvironmentthepaperanalyzesthestressthatthesetwodifferentexploitationsequencescreated.Butinthestudyauthormeetmuchmoretroublesbecausethefrankdataaboutstageexploitationsequencewhichuseforreferen

6、ce.Thispapersimulatesthevariationofstressesanddisplacementundertwodiferencekindsofexploitationsequence.InordertoexplainthisquestionmuchmoreweselectarealmineHoutoushanMountcopperminetostudy.Byanalyzingtheresultofsimulatio

7、nontheExploitlatterstageoftwokindsmethodsweknowthatthedestroyingratedisplacementandydirectionstressesofupwardminingaresmallerthanthedownwardmining.Theresultaccordswiththedemandsforenvironmentalprotection.Atthesametimewes