基于室内土工试验,针对目前国内外常用的 2种透明土材料(熔融石英砂和烘烤石英砂)与混凝土材料之间接触面 的摩擦力学特性开展研究,着重分析混凝土温度变化对透明土 -混凝土材料接触面摩擦力学特性的影响规律;为了对比分 析,开展相同情况下砂土 -混凝土材料接触面摩擦力学特性室内试验。研究结果表明,熔融石英砂和烘烤石英砂两种透明 土材料 -混凝土材料接触面摩擦力学特性与砂土材料 -混凝土材料接触面摩擦力学特性相似,说明该 2种透明土材料可 以较好地模拟天然砂土 -混凝土材料接触面特性;温度因素对透明土材料 -混凝土材料接触面摩擦力学特性有一定影响, 但影响并不明显。 关键词:透明土;砂土;桩 -土接触面;温度效应;室内试验 中图分类号:TU375 文献标志码:A 文章编号:1672-7029(2016)04-0632-07 Experimentaloninterfacemechanicaloftransparentsandconcrete influencedbytemperature SUNXuejin1,2,KONGGangqiang1,2,LIChunhong1,2,CAOZhaohu1,2 (1.KeyLaboratoryofGeomechanicsandEmbankmentEngineering(HohaiUniversity),MinistryofEducation,Nanjing210098,China; 2.CollegeofCivilandTransportationEngineering,HohaiUniversity,Nanjing210098,China) Abstract:Basedontransparentsandmaterialanddigitalimageprocessingtechnology,thevisualizationofmodel testmethodforgeotechnicalengineeringwasgraduallyapplied.However,theresearchesfocusedonthemechani calpropertiesofinterfacebetweentransparentsandandconcretestructures(suchas,pilefoundation)wererela tivelylittle.Besides,theresearchesfocusedonthetransparentsandconcretepileinterfacemechanicalproperties influencedbytemperatureeffectwasrelativelyless.Basedonlaboratorytests,twotransparentsandmaterials (fusedsilicaandbakedquartz),whicharecommonlyusedathomeandabroad,werechosenforstudies.The interfacemechanicalpropertiesbetweenthesetwotransparentsandandconcreteinfluencedbytemperaturewas takenout.Forcomparison,theinterfacemechanicalpropertiesbetweensandandconcreteinfluencedbytemper aturewasalsocarriedout.Theresultsshowthattheinterfacemechanicalpropertiesbetweenthesetwotranspar entmaterialsandconcretematerialaresimilarwiththosebetweensandmaterialandconcrete.Itindicatesthat thesetwotypesoftransparentsandmaterialscanbeusedinthesimulationofnaturalsand-concreteinterface characteristics.Italsoshowsthatthevaluesofinterfacemechanicalpropertiesareinfluencedbytemperature
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