资源描述：
《Cold Regions Science and Technology》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、ColdRegionsScienceandTechnology85(2013)109–116ContentslistsavailableatSciVerseScienceDirectColdRegionsScienceandTechnologyjournalhomepage:www.elsevier.com/locate/coldregionsExperimentalstudyontheeffectoffrostheavepreventionusingsoilbagsZhuoLi,SihongLiu⁎,Liujiang
2、Wang,ChenchenZhangCollegeofWaterConservancyandHydropowerEngineering,HohaiUniversity,Nanjing210098,ChinaarticleinfoabstractArticlehistory:Thispaperintroducesanewmethodtopreventfrostheaveincoldregionsusingsoilbags(bagsfilledwithReceived27July2012soils).Themechanism
3、oftheproposedtreatmentmethodisintroduced.AnumberoftestsofsoilbagfrostAccepted28August2012heave,thawingsettlementandstrengthwereconductedinthelaboratoryonsoilbagsfilledwithsoils.Theresultsshowedthatsoilbagsexhibitlessfrostheaveandthawingsettlementthansoilsforthesa
4、mecondi-Keywords:tions.Inaddition,thestrengthofsoilbagswasnotaffectedbyincreasingthenumberoffreeze–thawcycles.SoilbagsThesefindingsindicatethatsoilbagscannotonlypreventfrostheavebutalsoinhibitcapillarywaterandfilmFrostheaveThawingsettlementwatermigrationthroughsoi
5、lbags.Moisturecontent©2012ElsevierB.V.Allrightsreserved.Tensilestrength1.Introductionbagsexhibitthetypicalcharacteristicsofcohesive-frictionalmaterials(MatsuokaandLiu,2003).Inrecentyears,soilbagshavebeenusedThecoldregionsoftheworldcoverlargepartsofAsia,northernp
6、rimarilyforsoilreinforcementinpermanentorsemi-permanentEurope,Alaska,CanadaandapproximatelyathirdoftheUSA.IncivilengineeringworksandfoundtobefeasibleandeffectiveChina,permafrostandseasonalfrozengroundcover68.4%ofthe(KhaliliandKhabbaz,1998;MatsuokaandLiu,2003).An
7、ewearthre-land,thisareacovering29provinces,intheseregions,foundations,inforcementmethodusingsoilbagshasrecentlybeendevelopedbuildingsandgeotechnicalstructuresaresubjecttofreezingand(MatsuokaandLiu,1999,2003,2005;Matsuokaetal.,1998,2000).frostheaveinthewinterandt
8、hawsettlementandweakeningintheThereinforcementmechanismandathree-dimensional(3D)modelspring.Freeze–thawactioncancauseseveredamagetofoundationsfortheultimatecompressiv
