河南理工大学本科毕业设计（论文）AbstractPAGE\*MERGEFORMATXXXIVPAGE\*MERGEFORMAT2摘要本设计是从信阳到商城某段二级公路的设计，该段路线总长为3054m。本设计中设计车速为80km/h，双向两车道。本设计是在对交通量进行分析，查找相应的技术规范的基础上，确定出公路的技术等级以及设计需要的各种参数，最终确定采用二级公路的技术指标进行设计。结合周围的地形情况进行了平面线形设计，平面线形中有三个转角。纵断面的设计中有两个竖曲线，满足平纵线形组合设计中的各种要求。在横断面的设计中，确定了横断面组成及各种要素后，绘制出横断面图。本设计中路面设计采用沥青路面进行设计，主要包括结构层的拟定和设计层厚度计算。涵洞设计主要是在拟定结构尺寸后进行各种强度的验算。设计中结合地形及周边环境条件，通过两条线路方案的比选，最终确定最佳方案。关键词：二级公路；纵断面；横断面；沥青路面；涵洞AbstractThisdesignisasecondaryroaddesignfromXinyangtoShangchengandthetotallengthofthesectionis3054m.Thedesignspeedis80km/handtheroadhastwolanes.TheTparameterswhichareneededinthedesignaredefinedbyanalyzingthetrafficandsearchingthecorrespondingtechnicalspecification.Finallythesecondaryroad’stechnicalspecificationisdesigned.Basedonthesurroundingterrain,thealignmentofthehighwayisdesigned,whichhasthreecorners.Therearethreeverticalcurvesinthedesignofverticalalignment,whichallmeetthedesignrequirementofthelinearcombination.Inthecrosssectiondesign,thecrosssectiondiagramsaredrawnafterdeterminingthecompositionandcrosssectionelements.Thedesignoftheasphaltpavementmainlycontainstheselectionofthestructurelayerandthecalculationofthelayerthickness.Theintensionofthestructureischeckedaftertheselectionofthedimensionsofthestructureintheculvertdesign.Thedesigniscombinedwiththeterrainandsurroundingenvironmentconditions,andthroughthecomparisonoftwolineprograms,thebestsolutionisultimatelydetermined.Keywords：Secondaryroad,verticalsection,crosssection,Asphaltpavement，culvert朗读显示对应的拉丁字符的拼音字典可翻译50多种语言HYPERLINK"http://translate.google.com/?hl=zh&sl=auto&tl=zh&sugg=u&hints=true&q=haydi+gidelim"haydigidelimHYPERLINK"http://translate.google.com/?hl=zh&sl=auto&tl=zh&sugg=u&hints=true&q=%E0%A4%AC%E0%A4%A8%E0%A5%8D%E0%A4%A6%E0%A4%B0"बन्दरHYPERLINK"http://translate.google.com/?hl=zh&sl=auto&tl=zh&sugg=u&hints=true&q=%CF%80%CE%B1%CF%81%CE%B1%CE%BB%CE%AF%CE%B1"παραλίαHYPERLINK"http://translate.google.com/?hl=zh&sl=auto&tl=zh&sugg=u&hints=true&q=%EA%B5%AD%EC%88%98"