外文翻译-- 公路和机场路面设计

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1、中文2942字本科生毕业设计（论文）外文资料翻译翻译资料名称（外文）：HighwayandAirportPavementDesign翻译资料名称（中文）：公路和机场路面设计学院：建筑工程学院系土木工程专业：土木工程（道桥）班级：学号：姓名：指导教师：完成日期：2012年02月20日11HighwayandAirportPavementDesign（Excerpt）T.F.FwaNationalUniversityofSingapore1.IntroductionPavementsaredesignedandconstructedtoprovidedurab

2、leall-weathertravelingsurfacesforsafeandspeedymovementofpeopleandgoodswithanacceptablelevelofcomforttousers.Thesefunctionalrequirementsofpavementsareachievedthroughcarefulconsiderationsinthefollowingaspectsduringthedesignandconstructionphases:(a)selectionofpavementtype,(b)selectio

3、nofmaterialstobeusedforvariouspavementlayersandtreatmentofsubgradesoils,(c)structuralthicknessdesignforpavementlayers,(d)subsurfacedrainagedesignforthepavementsystem,(e)surfacedrainageandgeometricdesign,and(f)ridabilityofpavementsurface.Thetwomajorconsiderationsinthestructuraldesi

4、gnofhighwayandairportpavementsarematerialdesignandthicknessdesign.Materialdesigndealswiththeselectionofsuitablematerialsforvariouspavementlayersandmixdesignofbituminousmaterials(forflexiblepavement)orportlandcementconcrete(forrigidandinterlockingblockpavements).Thesetopicsarediscu

5、ssedinotherchaptersofthishandbook.Thischapterpresentstheconceptsandmethodsofpavementthicknessdesign.Asthenameimplies,thicknessdesignreferstotheprocedureofdeterminingtherequiredthicknessforeachpavementlayertoprovideastructurallysoundpavementstructurewithsatisfactoryperformanceforth

6、edesigntrafficovertheselecteddesignlife.Drainagedesignexaminestheentirepavementstructurewithrespecttoitsdrainagerequirementsandincorporatesfacilitiestosatisfythoserequirements.2．PavementTypesandMaterials2.1FlexibleversusRigidPavementTraditionally,pavementsareclassifiedintotwocateg

7、ories,namelyflexibleandrigidpavements.Thebasisforclassificationisthewaybywhichtrafficloadsaretransmittedtothesubgradesoilthroughthepavementstructure.AsshowninFig.2.1,aflexiblepavementprovidessufficientthicknessforloaddistributionthroughamultilayerstructuresothatthestressesandstrai

8、nsinthesubgradesoillayersare11wit