重交通復(fù)雜條件下高性能瀝青混合料關(guān)鍵技術(shù)的研究.pdf

1、同濟(jì)大學(xué)博士后學(xué)位論文重交通復(fù)雜條件下高性能瀝青混合料關(guān)鍵技術(shù)的研究姓名：馬新申請(qǐng)學(xué)位級(jí)別：博士后專業(yè)：道路與鐵道工程指導(dǎo)教師：郭忠印20090501AbstractBasedontheinvestigationofsheardestructionscharacterattheintersection，andaccordingtothetypicalroadstructure，athreedimensionaldynamicrespon

2、seFEMmodeliSmadeandthedynamicresponseofroadstructureactedbyvehiclerunningatcommonspeedandatthestateofbakingiSanalyzedAccordingtothetechnicsflowofasphaltmixturemixingequipment，thescreeningresultsofthemineralaggregateandpr

3、incipleofvolumedesignthesoftwareofMultilevelStonestoneframegradationdesign(MSSF1O’liScompiledTheresultdesignediScomparedwiththecriterionSolutionspresentedinthisthesiscanbesummarizedasfollows：一Thedominatingsheardestructio

4、nsareRuggedness、RuttingandcrackattheareaactedbycomplexstresssuchasintersectionComparedwiththestaticsanalysisresult，figuresofverticaldisplacement、verticalstress、verticalshearstress、horizontalstressandhorizontalshearstress

5、arereducedwhenthevehiclearerunningatcommonspeed，whenthespeedisraisedfrom0to120km／htheabovefiguresmayreducefrom8～16％Theeffectsofhorizontalforcecoefjficienttohorizontalstressandhorizontalshearstressaregreaterthanthattovert

6、icaldisplacement、verticalstress、verticalshearstressUnderthestateofbakingthehorizontalstressandhorizontalshearstressareincreasedgreatlyTheresultswillbeonthelowsideevidentlyifcalculatedbystaticsmodel一Themaximalhorizontalst

7、resswilloccurattheupperlayerofasphltpavement一ThemaximalhorizontalshearstressoccursattheconjunctionareasbetweensemirigidandthesurfaceoftheasphltpavementwhenthevehiclerunningatcommonspeedButitwilloccurssatthemiddlelayerofa

8、sphltpavementwhenthevehiclerunningatthestateofbaking一Thehorizontalstressandhorizontalshearstressaregreatestintheupperlayeroftheasphltpavementwhenthevehiclerunningatthestateofbaking，butitwillbereducedgreatlyinthebottomoft