道桥专业毕业设计

本科生毕业设计（论文）ⅠI丹东—庄河高速公路CD段设计摘要本毕业设计的题目是：丹东—庄河高速公路CD段设计。综合该地区的经济发展前景和交通量的发展需求，从远景和近景的交通状况出发，确定采用高速公路的技术指标进行设计。本高速公路所在地段属于平原微丘区，设计时速100Km/h。该路段设计总长5551.122m。路线设四个平曲线交点，交点桩号分别是K1+077.204，K2+009.886，K3+729.917，K4+625.774。平曲线半径分别为900m，800m，700m，800m。竖曲线两个，其中前一个为凹形曲线，后一个为凸型曲线。路线高低起伏不大，最小纵坡为0.301%，满足最小纵坡排水要求。路面设计为高级路面，采用沥青混凝土路面。本设计沥青混凝土理论以弹性层状体系理论为基础，沿途经过的干燥、中湿两种状态下的路段分别进行两种不同的路面设计，为保证路基路面的强度稳定性，延长道路的使用寿命，在做好路基路面设计的同时，还对道路的排水进行了设计。设计中采用多种工程软件进行精确计算来优化设计，设计图纸采用AUTOCAD系统及纬地道路系统绘制。关键词：高速公路；平曲线；竖曲线；路基；沥青路面本科生毕业设计（论文）ⅠIIAbstractThispaperisCDsection’sconstructiondesignofDandong-ZhuanghefreewayAccordingtotheregion’seconomicdevelopmentprospectiveofthetrafficcondition,confirmingtheusingofindicatorsinhighwaydesigntocarryonthedesigning.Theprojectlocatedintheplainfills.Thedesignspeedis100Km/h.Thistotallegthofdesignrouteis5551.122m.Theroutesupposes4planecurves,respectivelyisK1+077.204，K2+009.886，K3+729.917，K4+625.774.Thecurveradiusrespectivelyis900m,800m,700m,800m.Twoverticalcurveconsistofaconcaveverticalcurveandaconvexverticalcurve.Thesmallslopeis0.301%,satisfyingwiththesmallestslopedrainingwater.Anadvancedasphaltpavementisadoptedintheproject.Basingonthetheoryofelasticlayeredsystem,4kindsofdiffentpavementstrucationisdesignedtomeetfordifferentstatesbasingontheroutemaypassthroughthedry,inwet,humid,toowetstateunderthedifferentsectionoftheroadrespectivelytobedesigned,meetingforthedesignrequirements.Toensurethestrengthandstabilityoftheroadbedsurfacetoextendthelifeoftheroad,theroadembankmentingooddesign,itisalsocarriedoutontheroaddrainagedesign.Keywords：Freeway；Horizontalcurve；Verticalcurve；Subgrade；Asphaltpaverment；本科生毕业设计（论文）ⅠIII目录第一章绪论...................................................................................................................................11.1设计任务、依据及目的.....................................................................................................11.2沿线自然地理概况.............................................................................................................11.2.1道路所在地区的气象资料....................................................................................11.2.2沿线的工程地质及水文地质情况........................................................................11.2.3沿线的植被及土壤分布情况................................................................................21.2.4道路建筑材料及分布情况....................................................................................21.3近期交通量.........................................................................................................................21.4可行性分析.........................................................................................................................21.4.1道路可行性分析....................................................................................................21.4.1.3关于路线交叉设置............................................................................................31.4.1.4关于交通工程与沿线设施................................................................................31.5路线方案.............................................................................................................................31.5.1地区选线................................................................................................................3第二章路线设计...........................................................................................................................72.1主要技术指标.....................................................................................................................72.1.1交通量分析及交通量的计算................................................................................72.1.2年平均交通量........................................................................................................72.2路线平面设计.....................................................................................................................72.2.1平面线形设计的一般原则....................................................................................82.2.2计算平曲线要素....................................................................................................82.2.3交点计算示例........................................................................................................92.3道路纵断面设计...............................................................................................................122.3.1纵断面设计的一般要求......................................................................................122.3.2最大纵坡确定......................................................................................................122.3.3最小纵坡确定......................................................................................................132.3.4坡长限制..............................................................................................................132.3.5竖曲线设计..........................................................................................................132.4道路横断面设计...............................................................................................................162.4.1概述...........