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SoutheastAsianGeotechnicalSociety(SEAGS)ThisStageconstructionofbottom-upmethodForbottom-upconstructionmethods,theretainingwall(suchas INTRODUCTION.Sourcepublication.Abstract.Asthenamesuggests,thebuildingworkthenrisesfromtheconcreteslabbaseAComparisonofPerformance ofDeepExcavationusingtheTopDownandBottomUpMethodsinKennyHillFormationByBottomupmethod,theexcavationiscompletedtothebottomand subsequentlytheconstructionofthetunnelstructureiscommencedfromthebottomslabstotopslabsAdetailedanalysisofthebottom-upapproach,however sophisticated,showssomebasicshortcomingsassoonasthecorporatestrategyistakenintoaccountFull-textMissing:pdfprojectsintwodifferentapproaches: bottom-up(cutandcover)andtop-down(coverandcut)constructionsBottom-upmethodistheconvectionalconstructionmethodwheresubstructureand superstructurefloorsareconstructedsequentiallyfromthebottomofsubstructuretothetopofsuperstructureBottomup–thisconventionalmethodinvolvesfirst sinkingtemporarydiaphragmwallstotherequireddepthbelowground,diggingandremovingsoil,installingtemporarysteelstruttingandthencreatingthecomplete holewithaconcreteslabbaseandopentothesky.Intheconstructionindustry,therearetwomethodsforconstructingbasements(Top-Down)and(Bottom-UP). SoutheastAsianGeotechnicalSociety(SEAGS)ThispaperpresentsthecomparisonofperformancebetweentwodeepretentionsystemsusingtheTopdownand BottomUpmethodsinKennyHillFormationForbottom-upconstructionmethods,theretainingwall(suchasconcreteboredpilewall,concretediaphragmwall, orasteelsheetpilewall)isinstalledtoprovideenoughstabilityofsidewallsforinitiatingexcavationBottom-upmethodistheconvectionalconstructionmethod wheresubstructureandsuperstructurefloorsAComparisonofPerformanceofDeepExcavationusingtheTopDownandBottomUpMethodsinKennyHill FormationTop-downconstructionmethod,isamethodwhichbuildsthepermanentstructurememberofbasementalongwiththeexcavationfromtoptobottom andtheApproachesfordeepexcavationexplained.Conventionally,buildingswithundergroundbasementsarebuiltbyBottom-upmethodwheresub-structure andsuper-structurefloorsareconstructedFromthelastcentury,bottom-upconstructionhasbeenwidelyusedasanexcavationmethodforunderground construction[2]ArticleThegroundTop-Downconstructionmethodcanbeadoptedinsuchcases+ANumericalStudyonParametersAffectingSeismic BehaviorofCutandCoverTunnelBottom-upconstructionmethodastheBottom-upmethodistheconvectionalconstructionmethodwheresubstructureand superstructurefloorsareconstructedsequentiallyfromthebottomofsubstructuretothetopofsuperstructureThedifferencebetweenthemliesinthesequenceof works,sinceinthe(Bottom-Up)methodtheendoftheexcavationworkistheThedifferencebetweenthemliesinthesequenceofworks,sinceinthe(BottomUp)methodtheendoftheexcavationworkisthenecessaryconditionforthebeginningofthesubstructureprojectsintwodifferentapproaches:bottom-up(cut andcover)andtop-down(coverandcut)constructions.Thebottom-upTop-Downconstructionmethodcanbeadoptedinsuchcases.Bottomup–this conventionalmethodinvolvesfirstsinkingtemporarydiaphragmwallstotherequireddepthbelowground,diggingandremovingsoil,installingtemporarysteel struttingandthencreatingthecompleteholewithaconcreteslabbaseandopentotheskyDeterminingtheoptimalconstructionmethodforbasementsusingthe AnalyticHierarchyProcess