二级公路路线设计(毕业设计)

xxx大学毕业设计1摘要本设计为某山岭地区二级公路路线设计，设计车速为60Km/h，采用双向两车道形式，无中央分隔带。本次设计充分考虑地形、地质、地物、水文等自然条件，并根据设计任务书的要求及公路的相关规范的规定，在老师的指导下完成设计。本设计的内容有：平面、纵断面和横断面设计。平面线形设计包括资料整理与平面定线，平曲线要素确定，加宽与主要点的桩号及坐标计算；纵断面设计包括地面高程、设计高程、填挖深度和竖曲线要素，填挖高与路基边线高程计算；横断面设计包括确定标准横断面，绘出每桩横断面图；整个设计过程严格按照国家有关规范进行。该说明书主要内容为：平面定线、平面线形设计、纵断面线形设计、平纵面线形的组合设计、路基横断面设计、结语，谢辞和主要参考文献等。关键词：道路等级；选线；平面线设计；纵断面设计；横断面设计。XXX：某二级公路路线设计2ABSTRACTThisdesignisaboutaroadofsecondgradinthemountainarea,Designingspeedis60km/h.Itisatwo-lanetwo-wayroad,nocentralseparatebelt.Thedesignfullyconsidertheterrain,geology,terrain,hydrologyandothernaturalconditions,accordingtotherelevantspecificationsanddesignrequirementsofthetaskofhighway,completedthedesignundertheguidanceoftheteacher.Thedesignincludes:plane,longitudinalsectionandcrosssectiondesign.Theplanelineardesignincludesthedataplanealignment,certainelementsofhorizontalcurvecalculationandthemainpoints,wideningpilenumberandcoordinate;longitudinalsectiondesignincludingelevation,designelevation,thedepthofcuttofillandverticalcurveelements,fillandexcavationheightandroadbedsideelevationcalculation;cross-sectionaldesignincludingthedeterminationofstandardsection,draweachpilesections;theentiredesignprocess,instrictaccordancewiththerelevantstandardsofthestate.Thismanualmainlycontents:horizontalalignment,horizontalalignmentdesign,profilealignmentdesign,horizontalandverticalalignmentdesign,thecross-sectionaldesign,theconclusion,thanksandmainreferences.Keywords:roadgrade,routeselection,verticaldesign,horizontaldesign,cross-sectionaldesign.xxx大学毕业设计1目录摘要....................................................................................................................................................1ABSTRACT...............................................................................................................................................2目录....................................................................................................................................................11.绪论...............................................................................................................................................11.1选题背景11.1.1道路运输概述..................................................................................................................11.1.2我国道路发展情况.........................................................................................................11.2本设计基本情况......................................................................................................................22.路线平面设计..................................................................................................................................22.1二级公路选线原则................................................................................................................22.2选线.............................................................................................................................................32.3定线.............................................................................................................................................42.3.1路线简介...........................................................................................................................42.3.2带缓和曲线的圆曲线计算...........................................................................................42.3.3曲线上整20米桩号的坐标计算................................................................................63.路线纵断面设计.............................................................................................................................73.1概述.............................................................................................................................................73.2纵断面设计的原则：.............................................................................................................83.3纵坡设计....................................................................................................................................83.3.1纵坡设计的一般要求：................................................................................................83.3.2纵坡坡度...........................................................................................................................83.3.3平纵组合设计..................................................................................................................93.4竖曲线设计.............................................................................................................................103.4.1竖曲线设计的一般要求...............................................................................................113.4.2竖曲线半径.....................................................................................................................113.4.3竖曲线计算.....................................................................................................................114.路线横断面设计...........................................................................................................................144.1概述..........................