湖北省低交通量道路典型路面结构研究

华中科技大学硕士学位论文湖北省低交通量道路典型路面结构研究姓名：路庆昌申请学位级别：硕士专业：道路与铁道工程指导教师：资建民20080604IIIAbstractWiththeincreasingimprovementofhighwaynetworkinourcountry,constructionofbasalroadnetworkmainlyconsistsoflow-volumetrafficroadshouldbeemphasizedoninfuture.SinceChinahasavastterritory,andtherearegreatdifferencestovariousregionsamonggeography,topography,climate,soilandgeologicalconditionsandsourcesofmaterial,andtherearealsodiversepavementstructureformsforlow-volumetrafficroad,variousspecialproblemsencounteredinroaddesignandconstructioninallpartsofthecountrycouldnotbesolvedbyexistingroaddesignspecifications;Ontheotherhand,withtheconstructionofChina'snewsocialistcountryside,alargenumberofruralroadsarebeingbuilt,butlotsofpavementdiseaseappearedtolow-volumetrafficroadshortlyafteritsopeningtotraffic,whichreducedtheservicelifeandincreasedmaintenancecosts.Aimingtodifferentclimate,geography,terrainconditionsandmaterialsourcesindifferentareasofHubeiProvince,studyontypicalstructureoflow-volumetrafficroadwasdeployed,whichwouldmaketheroadstructuresafeandreliableandeconomicallyrational,andreduceearlyroaddamage,andsaveprojectcost,andreducemaintenancecosts.Basedontheentireabove,mainaspectsofthisthesiswerestudiedasfollows:Firstofall,throughinvestigationandanalysisofnaturalclimateandgeographicalterrainofallregionsintheprovince,naturalareasofruralhighwayweresetoff.Basedontheinvestigationonroadconstructionandusingstatusoflow-volumetrafficroad,prevalentpavementstructureandroadbuildingmaterialsanddesignandconstructionexperiencesinvariousnaturalareasweresummarized,andtypicalpavementstructuresoflow-volumetrafficroadwerestudiedoutinitially.Trafficstudyoflow-volumetrafficroadinHubeiProvincewasanalyzed,andcharacteristicsoftrafficflowwerestudied.Aquantitativecriterionfor“low-volumetraffic”ofruralhighwayintheprovincewasgivenandtrafficlevelswerealsopresented.Secondly,maindiseaseofruralroadindifferentareasoftheprovincewasanalyzedstatistically,anddamagetypesoflow-volumetrafficroadintheprovinceweresummedup,andcausesandpreventionmeasuresforeachroaddiseasewerealsodiscussed.Causesoflow-volumetrafficroaddiseaseintheprovincewereprobedintoandaseriesofusefulconclusionswerereached.IIIThirdly,numericalsimulationsoftypicalpavementstructurewereanalyzed.Forcingmodelsofpavementstructurewereestablishedunderlow-volumetrafficcondition,andforcingperformanceofdifferentpavementstructurewerecomprehensivelycomparedundertheconditionofdifferentmaterials,differentstructureformsandlayerthickness,andstructureformsandparametersandmaterialtypesforpavementwereestablishedsubsequently.Finally,concreteformsoftypicalpavementstructureforlow-volumetrafficroadwereputforward.Pavingandtrackingobservationoflow-volumetraffictestingroadsvalidatedthepaper’sresearchandshowedthatbettereconomicandsocialbenefitswereachieved.KeyWordsPavementstructureLow-volumetrafficRuralroadRoaddiseaseTrafficanalysisNumericalanalysis_____“”111.11.1.12003180.984.46127899223425472935898300872697.1%,12.3%,26.1%,49.7%4.8%[1]200310.27182003137.123.4477.1%[2]18.85/0.45/99.6%91.9%17356693[3]80%120km[4]159852km15798km50581km1111km92362km201082%77000202028671102[5][6][3][7][8][9]1.1.23[10]1.1.31.21.2.1backroad4400[11][12]5090km/h5000/60100km/h1200/80130km/h8000/100130km/h1975[13]20043IFG14025[14]2000300[15]30014016052005[16]200285%80%20033.7%1.7%[17]FHWA[18]50/50-400/penetrationtypesurface[12]610[19][20]34[21]crusher6finesandcement[22][23]19838025%1015[24]5019749.249%[25]15cm[26][27]10[28]207025084%[29]7RCC[30][31][3233][34][35]AASHO35MPa100kN10x106[35]81.2.2[36][35][37][38][39]6070[40]209386.91.3102341-1NYYN1122.11123//12212345132-12.22.2.1142-22-32-42-52-22-578272940.71222.65-1850.257.957.950.22302802-62-67120258mm699237mm152.2.22-72-72.2.311——168mRQD12345630T22——1712345633——15.6-16.313.3-16.911.4-3.8725.2-28.4977.4mm46.1%26.5%21.7%246-2551997-210015%4%18234510%644——1000mm1640.2-18.8220-2402059.775%1230km31945655——7956123456202.32.3.1413210017001233cm25cm64510620052006212.3.2.3613.43km2952.27km298.89km10.12%59327.8km150km278.8km112m9m2×1.5m8.5m2×0.75m4.5m3.5m2×0.5m20cm4m18cm3.5m230km32070804222.3.32-12-14045302157/km13.5m3m+2cm+4cm18cm3×15cm3m5m42453018~207/km110m3.5m4.0m4.5m3cm1820cm232-118~20cm20cm1015cm3840cm120/km3020~22/km810/km16m4.0m35cm18cm1015cm2×15cm2.42.4.12-2[41]242-2mm180303040151201501001001501501501502.4.22-22-32-32-2252-8a26bc27d28e2-82.5433772.5.1abcd29e2-9123452.5.250/50-400/[12]302.5.311010101042006PCU/VisualBasic2-4312-4104PCU/2006200.043.982.020.07.02009312.371.494.323.99.32011428.698.9103.52710.92014692.8161.3119.132.513.72016957.0223.6130.836.816.124-5cm[10]2-52-5104PCU/020205050150150322.61233333.1[42]22[43]10cm50cm30cm10mm20mm613mm67mm12/341789//3003-13-53-11353-223-33363-443-53753-63-6383.23.2.1113923404241423.2.2112324331234443.3124544.1[44]4.1.1[45]JTGD50-2006114623424712[28]4.1.211482342124934.289/8%12%18cm20cm18cm22cm3cm6cm4cm8%12%18cm20cm18cm22cm18cm23cm4-14-2504-1A1AC-134cm218cm20cmA2AC-134cm220cm20cmA3AC-134cm320cm30cmA4AC-134cm330cm30cmA5AC-135.5cm320cm15cm4-2C118cm15cm20cmC220