三级公路毕业设计论文-毕业论文.doc

西南科技大学城市学院本科生毕业论文 PAGE \* ROMAN \* MERGEFORMAT V绵阳市游仙区胜黎路改建工程设计摘要 胜黎三级公路对绵阳市游仙区的经济发展有着重要的作用，本路段属于山岭重丘区，本着安全、经济、实用、美观的原则，对该路段进行设计。本路设计是在所在区的地形、地质、气候的影响下，按照设计规范进行设计的。设计的内容有：平面线性设计、纵断面设计、横断面设计、路基路面设计。平面线性设计包括线路对比，圆曲线、缓和曲线参数设定、直线设计等；纵断面设计包括拉坡、竖曲线设计等，竖曲线设计应注意行车视距和视线诱导问题即满足“平包竖”；横断面设计时，为使行车更舒适和确保道路的使用年限，在路段应做防护和排水设计，排水设计包括路基排水和路面排水并对涵洞进行了设计。关键词 三级公路设计；平曲线；竖曲线；路基路面；排水The Design of Shengli Road，Youxian of Mianyang City Abstract the Shengli Road Class III highway had the importent role to the economic development of Mianyang，Youxian. This route each paragraph belongs to high mountains, I designed the road based on security, economic and practical, beautiful principles .Working properly to hope the highway design is under the influence of the geography，geology, weather of the place region, carrying on according to the design norm. A contents for design have: The flat surface line design, vertical section design, cross section design, road subgrade and pavement design. The flat surface line design includes the compaered select line, a curve, the mitigation curve parameter enactment, straight line design etc; the vertical section design includes to pull the gradient, vertical curve design etc, at the vertical curve design, the request of notice to go the car to see to be apart from to induce the problem to satisfy “a vertical curve ” namely with view. When the cross section design, considered the extremely high constitution, make go the car more comfortable and in order to insure the usage time limit of the road, still did the protection and drain design on the road segment. Drain design includes the road subgrade and road surface. And also did the culverts design Keywords the design of Class III highway， The flat surface line， Vertical curve， subgrade and pavement，Drain.目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc292032771 第1章 绪 论 PAGEREF _Toc292032771 \h 1 HYPERLINK \l _Toc292032772 1.1 道路运输的地位 PAGEREF _Toc292032772 \h 1 HYPERLINK \l