熱拌瀝青混合料施工壓實(shí)過程中溫度場(chǎng)變化規(guī)律研究.pdf

1、長(zhǎng)沙理工大學(xué)碩士學(xué)位論文熱拌瀝青混合料施工壓實(shí)過程中溫度場(chǎng)變化規(guī)律研究姓名：孫潔申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：鄭健龍錢國(guó)平20090501ABSTRACTManybuiltAsphaltPaVementshasappearedseriousinitialdamageinafbwyears，suchascracking，11Jtting，waterdamage，etcForthereasons，themostimpona

2、ntfactoristheimpactofinsumcientcompactionCompactionisthecoreofasphaltpaVementconstruction，itaffectspaVementperfomancedirectlyAndthetemperaturefieldofasphaltpaVementincompactionisoneofthemostimportantfactorsimpactingcompa

3、ction，temperaturebetoohighortoolowwillgOagainstcompactionef№ctStudyathomeandalbroadmainlyresearchedthetemperaturefieIdduringtheIifeofasphaltpaVementtemperaturefieldandfewisconcemedonthetemperaturefieldduringcompactionofa

4、sphaltpaVementThispapermainlystudiesthethennaltransfomationoftemperaturefieldinpaVementcompaction，throughsimulatingoffiledconstructionusingfiniteelementanalysissoftware，thenanalyzcsthesensitiVityofenVironmentalchangesItc

5、anproVidetheoreticalguidelinetofiledconstmctionTherearemanyfactorsaf托ctingcompactiontemperaturefield，itmainlyincludesthepaVingtemperature，initialcompactingtemperatureandthicknessofcompactinglayer’andenVironmentaltemperat

6、ure，underlayertemperature，windspeed，gradationdomixture，rollingspeedandnumber，solarradiationThispaperselectfivekeyfactorstodoanalyzingARerstudy’wecanfindthattheinfluenceofpaVingtemperatureandthicknessofcompactinglayermani

7、festedinthewholeHMAlayef，whilethewindspeedandambienttemperaturemainlymanifestedinthetopsurfaceofthelayer’andtheinnuenceofunderlayertemperaturemainlymanifestedinthebottomsurfaceofthelayerTheeffectofunderlayertemperatureon

8、thetemperaturefieldisrelatiVelysmallInordertoestablishmoreaccuratesimulationmodelthearticlesalsocarriedoutaseriesofthermalpropertiestestingatdifferenttemperaturesandcompactnessofasphaltmixtureKeywords：AsphaltpaVement；Com