摘要本设计是从信阳到襄阳的某段高速公路的设计，该段路线总长为3050m。本设计中设计车速为120km/h，双向八车道,路基宽度为45m，设置中央分隔带，行车道宽3.75m，硬路肩3m，土路肩0.75m。在平面设计中，通过方案比选确定最终线路，此线路中有三个平曲线。纵断面设计，主要包括三个竖曲线的设计。横断面设计中，确定路面横断面的形式，土石方的数量的计算和调配。在路基设计中，主要是确定路基的横断面形式和边坡的形式。路面设计中，确定了路面的结构层次。专题设计的主要内容包括对盖板、基础、台身和洞口建筑的设计。最后利用工程造价软件得出对比方案和选定方案的工程预算。关键词：高速公路设计；路基设计；路面设计；涵洞；工程预算IABSTRACTThisdesignisthedesignofasectionofahighwayfromXinyangtoXiangyang.Thesec-tionofrouteis3050m.Inthisdesign,thespeedofdesignis120km/h,two-wayeightlane,subg-gadewidthof45m,settingupthecentralsepartionbelt,lanewidth3.75m,hardshoulder3m,soilshoulder0.75m.Inthegraphicdesign,therearethreehorizontalcurveinthisline,determinedbythesche-mecomparison.Longitudinalsectiondesign,designmainlyincludesthreeverticalcurve.Thecross-sectiondesign,determinetheroadcrosssectionform,calculationandallocationofearth-workquantity.Inthedesignofroadbed,mainlydeterminetheembankmentcross-sectionandtheformoftheslopeform.Thedesignofpavementstructure,pavementwasdetermined.Themaincontentsofdesignprojectincludethedesignofthecover,foudation,abutmentandthebuilding.Finallydrawprojectbudgetofthecomparisonschemeusingtheengineeringcostprojectsoftware.Keywords:highwaydesign;roadbeddesign;pavementdesign;culverts;projectbudgetII目录第一章总论...............................................................11.1设计任务............................................................11.2技术标准............................................................11.3本次设计技术指标....................................................21.4设计总体情况........................................................3第二章平面设计...........................................................42.1沿线地质工程条件及评价...............................................42.1.1地形、地貌及气候条件.......................................................42.1.2地质构造...................................................................42.1.3地质水文评价...............................................................52.1.4筑路材料评价...............................................................52.2选线................................................................62.2.1布线原则...................................................................62.2.2选线步骤...................................................................62.2.3选线过程...................................................................72.2.4方案比选...................................................................72.3平面线形要素及设计原则..............................................82.3.1平面线形要素...............................................................82.3.2设计原则...................................................................92.4平面线设计.........................................................102.4.1平面线形总体设计..........................................................102.4.2平面线形各参数数据........................................................112.4.3具体设计过程..............................................................112.5平面设计的整理.........................................
