精品文档---下载后可任意编辑摘 要本毕业设计是进行二级公路设计。本设计段的路线长米，设计车速 80km/h，双向两车道。对交通量进行了分析，查找相应技术法律规范，确定公路的等级及设计需要的各种参数。在平面图中进行选线，然后对道路路线进行平面线形设计。纵断面设计中有 1 个竖曲线，并且也满足了平纵面线形设计中的各种要求。在横断面的设计中，确定了横断面的组成及各种要素后，绘制横断面图。路基设计的基本内容就是确定路基边坡的形状和坡度。路面设计内容中包括路面类型与结构设计。通过这次设计，不但了解了设计公路的各个步骤，而且也能熟练运用 AutoCAD 等制图工具进行作图。关键词：二级公路，线形设计，路基设计，交通量The Secondary Roads Construction Design of Dalishu to Fuhe of DunhuangABSTRACTThe design mainly is a secondaryroads construction design of Dunhuang..The design of the route for length ,with a design speed 80km/h, two-way two lanes,.I analysis the volume of trafficand inquirethe corresponding technical specification and determine the level of highway design and various parameters that i need..After planningthe route ,i route the road surface design,.Longitudinal design has one vertical curve, and it also meets the linear combination of the longitudinal surface design requirement. In the design of cross , after determining the transverse and various element, i start to draw the cross-sectional figure. The basic content of roadbed design is determining the shape of slope and embankment slope. Road pavement design includes type and structure design.Through the construction of highway design, i not only understand each step , but also can improve my drawing the skill with AutoCAD.KEY WORDS:secondary roads, geometric design, roadbed design,volume of traffic精品文档---下载后可任意编辑目 录前 言 VI第 1 章 绪论 2 工程概况 2 概述 21.1.2 设计任务 2 设计指标 2 设计原始资料 3 气象资料 31.3.2 地质资料与筑路材料 3第 2 ...
