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1、摘要本设计为双向四车道，设计行车时速100公里，路线全长为2720.231m，路基宽度为26m，行车道宽度为4×3.75m，其中规划远景设计年限为20年。设计内容包括道路技术等级与技术标准论证、道路方案设计、指定路段技术设计等。选线与定线是根据交通量确定道路等级，在地形图上确定三条备选路线，通过三个方案主要指标进行比选，确定最优方案。平面设计按照书中要求选定路线的各种技术指标，计算平曲线参数，确定线形。纵断面设计主要考虑纵坡在满足书中和规范上各规定的情况下，尽量使填挖趋于平衡，利于排水和行车舒适，计算竖曲线要素。横断面设计中
2、考虑排水和行车安全稳定等因素确定道路的横断面形式。路基设计主要进行确定压实标准、路基高度、边坡形状、坡度、路基排水等设计。公路边坡防护采用合理设计坡比，设置浆砌片石护面墙、喷浆护坡、挡土墙等进行加固，水土流失防治效果较好。公路沿线设置了完善的排水系统，如边沟、排水沟、截水沟等，将地表径流引入自然溪沟或通过涵洞排出。路面采用沥青路面设计，三层体系。本设计使用了纬地道路设计软件出图，效率高，避免了人力资源的浪费。关键词：沥青路面；路线；横断面；纵断面；挡土墙。2AbstractThisdesignisfour-lanetwo-w
3、ay,designtrafficspeedof100km,theroadlength2720.231m,subgradewidthof26m,thecarriagewaywidthof4×3.75m,amongthemplantodesignservicelifeas20yearsindistantview.Designthecontentandincludetheindustrialgradeoftheroadandproof,roadconceptualdesign,appointingthetechnicaldesig
4、nofhighwaysectionandspecialtopictobedesignedofthetechnicalstandard.Routeselectionandalignmentdeterminedinaccordancewiththeroadtrafficlevels,thetopographicmaptodeterminethethreealternativeroutes,throughthreemainindicatorsoftheprogramthantheelection,determinethebesto
5、ption.Graphicdesignrequirementsinaccordancewiththeselectedbooklineoftechnicalindicators,calculateflatcurveparameters,determinethelinear;ProfileDesignmajorconsiderationlongitudinalandspecificationtomeettheprovisionsofthebookwhere,asfaraspossiblesothattendstobalancec
6、utandfill,drainageandroadcomfortconducivetocalculateverticalcurveelements.Cross-sectionaldesignofthedrainageandroadsecurityandstabilityintoaccountsuchfactorsdeterminetheformofroadcross-section.Foundationprimarilydesignedtodeterminethecompactionstandards,embankmenth
7、eight,slopeshape,slope,embankmentanddrainagedesign.HighwaySlopeProtectionreasonablethantheslopedesign,madeofmortarandstonessetretainingwall,sprayPitchingandreinforceretainingwalls,Controlsoilerosionbetter.Theroadhasalongtherouteestablishedtheperfectdrainagesystem,l
8、ikesideditches,drains,ditchesclosed,andsoon，totheintroductionofsurfacerunofforthroughnaturalGullydischargeculvert.Pavementusedasphaltpavementdesi
