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1、DiscussionabouttheapplicationoftheanchorbarontheslopeconstructionFuMingFu,ZhangTianAbstract:Therearesomeadvantagesinstrengtheningslopewiththeanchorbar,suchaslowprojectcost,convenientforconstructionandsoon.Itnotonlymeetstherequirementofthereliabilityoftheconstruction,butalsoiseconomican
2、dreasonablefortheconstruction.Keywords:anchorbar;slope;strengthening1.IntroductionAnchortechniqueusesstratageotechnical’sshearstrengtharoundbolttodeliverstructurespullingforceorkeepstrataoftheexcavationownstability.Duetotheuseoftheanchorrod,Anchorstrataproducecompressivezoneandhaverein
3、forcementeffecttostrata,canenhancethestrengthofstrata,improvemechanicalpropertiesofstrata,makestructureandstratumtogetherformedakindofworktogethercomplex.Anchorsystemcaneffectivelysustaintensionandshear,improveshearstrengthofthepotentialslidingsurface,soitcaneffectivelypreventslopetopr
4、oduceslidingdamage.Fig1afterexcavationoftheslope2.ProjectprofileThelengthofaslopeisabout60m,themostslopeheightisabout23m,theangleupto50°~75°,afive-layerframestructurebuildingsisfarfromabout1.5to4matitsbaseedge,itsfoundationisartificialboredpileanditsbearingstratumisinweatheredphyllite.
5、Duetothestrongweatheringofrocks,itwaschunky,looselystructured,multi-muddyfilling.Ithasresidualslopedepositsofsiltyclayoverlyingandlocalfolderwithapulpy,lowstrength.Slopehadcollapsedatvariouslocations,itisvarydangeroustothebuilding,soweneedtoreinforcetheslope,andweusestoneconcreteretain
6、ingwallandbolttosupportit.1.Boltretainingandprotectingdesign1.1Boltdesign（1）allformationofanchorusewholelengthbond-type,thebindermaterialsareordinarycementmortar,themortarstrengthgradeisM30,theanchorlengthLis10meters,theslopeheighthis9meters.Anchoringsectionlengthis5m.（2）Accordingtothe
7、constructionconditionandtheneedsoftheprocess,thelayoutformofanchorusequincunx,andinordertomaketheanchoringforceintheroleofsurfacerocksurfacewithuniform,thetwoadjacentlineboltsshouldbestaggeredarrangement.（3）Theanchor’snumberaccordingtoh/3.24permetertocalculation,theanchorlengthisL,at
