长安大学路基路面课程设计汇本（双语）.doc

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1、CourseProjectRoadPavementEngineeringHighwaySchoolofChang’anUniversityXXXAdvisor:XXX2016-xx-xxPartIDataCollectionTheprojectissegmentAofShijiazhuangtoZhengzhougrade1highway.1.1ClimatedataNaturalZone:II4AnnualRainfall:570mm;HT:37C;LT:-7CFrost-thaw:Maxfrozendepthof60cm;Frozenindexo

2、f1023Conaverageand1540CinMax1.2GeologicalandsubgradeconditionsSoilType:alluvialsoil(asclaysoilsoflowliquidlimit)Embankment:0.6mofheight；Watertable:2.7mfromtheroadbedsurfaceinmid-wetstate；Subgradewidth:24.5m=4*3.75+2*2.5(Hardshoulder)+2*0.75(soilshoulder)+3.0(centralmedian)1.1Tr

3、afficdataTable1.TrafficcombinationNO.ClassificationVehiclemodelsDailytrafficflow(veh/d)Vehicleconversioncoefficient1MediumsizeMitsubishiT653B3201.52MediumsizeJieFangCA3902201.53LargesizeJACHF15018024LargesizeCNHTCJN16223025TrailerXJHQP4014036TrailerDFMEQ155903Note:NO.5&6isvisio

4、ntraffic,onlyconsideredinthecalculationofthepavementstructure.PartIIAsphaltPavementDesign1.1TrafficAnalysisESALscalculationSpecificcalculatingprocessisinexcel,andappliedequationsare:DeflectionandasphaltlayerbottomtensilestressasdesigncriteriaTensilestressatthebottomofsemi-rigid

5、baseasdesigncriteriaAccumulativeequivalentESALsIncreasingratioforeveryfiveyearsareγ1=8%,γ2=7%,γ3=5%sothetotalincreasingratioGcanbecalculatedas:G1=[(1+8%)5-1]/8%=5.87G2=(1+8%)5*[(1+7%)5-1]/7%=8.45G3=(1+8%)5*(1+7%)5*[(1+5%)5-1]/5%=11.39G=G1+G2+G2=25.71Accordingtospecificationford

6、esignofhighwayasphaltpavementclause3.1.7,Ne=Ne1=365*8534*25.71*0.5=40.04msa(Deflectionandasphaltlayerbottomtensilestressasdesigncriteria)Ne2=365*82980*25.71*0.5=389.3msa(Tensilestressatthebottomofsemi-rigidbaseasdesigncriteria)1.2SubgradeModulusFromthetable5.1.4-1inJTGD50-2006,

7、consistencyisbetween0.95-1.10,thecorrespondingMRislessthan40MPaandforextremelyheavytrafficsubgradeMRmin=40MPa,soMR=40MPa.2.CombinationDesign2.1Asphaltsurfacecourse&BaseandsubbasecoursesAsphaltsurfaceandBaseandsubbasematerialandthicknessselectionlimitisfromthetablebelowinJTGD50-

8、2006:2.2SummaryThreecombinationschemesareScheme1:(Asph