寒區(qū)護(hù)坡工程界面摩擦特性試驗(yàn)研究.pdf

1、東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文寒區(qū)護(hù)坡工程界面摩擦特性試驗(yàn)研究姓名：李永剛申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)工程；農(nóng)業(yè)水土工程指導(dǎo)教師：王秋萍20110620AbstraetTheStudiesonFrictionCharacteristicsofSlopeProtectionInterfaceinColdRegionsAbstractDuetotheeffectsofcold，freezingandthawingthefrictioninterf

2、aceandmechanicalpropertiesoftheslopestructurewaschangedincoldregionsIncoldareasexcavationcuttingthenewcutslopeandembankmentconstructionandotherengineeringactivities，wouldmadethesoilunderthenewlyexposedtofreezingandthawin

3、gintherelevantdeformationandstabilityanalysis，wemustconsiderthephysicalandmechanicalpropertieschangeW油theconstructionofhydraulicengineeringandroadworksandotherpermafrostregionstoearlyoutawiderangeofconstructionourconstru

4、ctionofgeotechnicalengineeringincoldregionswouldexperiencethesameproblemCurrentlythefreezingandthawingeffectsonsoilphysicalpropertieshavebeenmoreindepthresearchandfreezingandthawingofsoilslopestructureandinteractionwithn

5、atureundertheinfluenceisthelackofsystematicresearchthereisnocomprehensivelawsproposedtobefurtherdepthstudyInthispaperslopestructureofindoormodelwasstudied，thefrictioninterfacefrictionangle(qOandcohesion(c)aretwofactorsto

6、studychangeofthefrictioninterfaceparameters，hingedblockofconcrete，concreteformsandgravelpolyurethanerevetmentmaterialseffectonchangeofCantfrictionshears們ngthparametersofcohesivesoilatroomtemperatureandaftermeltingcircula

7、tionFirstinthispaperusinghomemadecantfrictionapparatustodocantfrictionsheafingtesttostudysoilwatercontenteffectonsheafingstrengthofhingedblockofconcrete，concreteformsandgravelpolyurethanerevetmentmaterialsatlOOmtemperatu

8、reShearstrengthparametersofdifferentsoilwatercontentisgivenundertheeffectofthreekindsofrevetmentmaterialsbyresults，isthespecimenscohesion(c)andfrictionangle(9)FinallyhaveaqualitativeanalysisondatabytestSecondlyinordertos

9、tudyoffreezethaweffectsonrevetmentstructure。thepaperdesignsontheindoorclaysoilfreezethawcyclefrictiontestMeasuredbytestinghingedblockofconcreteandconcreteprefabricatedcomponentsmaterialsrespectivelyWasunderthemoisturecon

10、tentis18％andsaturationofcohesivesoil，therewasafrictionmetercanttestafterthesamefreezingtimeandmeltingtimetogetshearstrengthindexThetestWaSgotagroupofrevetmentstructureshears仃engthparameterseveryfivetimesofmeltingcirculat

11、ionandtotallytentimesandfinallyanalysisdataoftestTestanalysisshowedthatchangeofthespecimenscohesion(c)andfrictionangle唧)underdifferentcombinationofthefrictioninterfaceparameters，hingedblockofconcreteconcreteformsandgrave