摘要本设计为玉皇山风景区旅游公路的初步设计。首先根据远景年交通量、所处地区的自然条件确定公路的技术等级和相应的技术指标。然后利用纬地软件在平面图中选定最优的方案，对选定的方案进行平面线形、纵断面竖曲线、横断面设计，并绘制了线路平面图、纵断面图、横断面图等。同时主要进行了线路挡土墙的设计，挡土墙采用了重力式挡土墙，根据不同的路段采用路堑墙或路堤式挡土墙。根据线路道路等级、设计年限、载重次数结合公路所处地区所属的自然区划选用相应的指标对路面进行了路面结构设计，本线路采用水泥混凝土路面。最后进行了挡土墙和交通安全设施的设计。关键词：线形设计路面挡土墙安全设施AbstractThedesignisapreliminarydesignofsecnichignwayforYuHuangshan.First,accordingtothevisionoftrafficlocalnaturalconditionsdeteminetheroadtechnicallevelandthecorrespondingtechnicalspecification.ThenusetheHintCADtoselectthebestprogramoffloorplan.Forselectedprogramwedidthehorizontalalignmentverticalsectionofverticalcurvecross-sectionaldesign.Anddrawalineplan,longitudinalsectioncross-sectionaldiagrams.Mainlyforthelineatthesametimeretainingwalldesign,retainingwallsusingaweightretainingwall,accordingtothedifferentsectionsofthewallbycuttingorembankmentretainingwall.Accordingtolinetheroadlevel,thedesignservicelife,loadtimeswithroadareabelongstothenaturaldivisioninwhichthecorrespondingindicatorsusedforthestructuraldesignoftheroad,theroutetheroadwithasphaltgravelmixture.Finally,Finally,aretainingwallandtrafficsafetyfacilitiesdesign.Keywords:AlignmentDesignPavementRetaningwallSafetyfacilitiesPAGEIV目录TOC\o"1-3"\u第1章绪论PAGEREF_Toc295478638\h11.1概述PAGEREF_Toc295478639\h11.1.1绪言PAGEREF_Toc295478640\h11.1.2设计原始资料PAGEREF_Toc295478641\h11.2设计规范标准PAGEREF_Toc295478642\h21.3道路等级的确定PAGEREF_Toc295478643\h21.3.1确定道路技术等级PAGEREF_Toc295478644\h21.3.2确定线路技术标准PAGEREF_Toc295478645\h2第2章选线与定线PAGEREF_Toc295478646\h42.1选线原则PAGEREF_Toc295478647\h42.1.1总体原则PAGEREF_Toc295478648\h42.1.2山岭重丘区选线PAGEREF_Toc295478649\h42.2方案拟定PAGEREF_Toc295478650\h42.2.1方案比选PAGEREF_Toc295478651\h52.2.2平曲线基本桩号计算PAGEREF_Toc295478652\h62.2.3土石方计算PAGEREF_Toc295478653\h7第3章平面设计PAGEREF_Toc295478654\h93.1直线PAGEREF_Toc295478655\h93.1.1直线长度的确定PAGEREF_Toc295478656\h93.2平面直线设计原则PAGEREF_Toc295478657\h93.3平曲线的设计