陕西镇安至商南B标段施工图设计二级公路毕业设计论文.doc

本科毕业设计(论文)题目：院 （系）： 专 业： 班 级： 学 生： 学 号： 指导教师： 2010年 06月 Zhenan to the business design of new roads Shangnan Abstract In this design， is mainly carries on Zhenan to a Shangnan‘s and-class road design，the length of this road which we design ism， the design of the speed is 60km/h，bidirectional two traffic lanes ，and not set up the central of separation strip. Has carried on the analysis to the volume of traffic， search corresponding technical specifications， highway to determine the levels of need and the design of the parameters . Carries on the route selection in the horizontal plan，the ratio having carried out a schemes elects and , ascertain out the optimum scheme,the line font having carried out a flat surface on road route designs that, the route relaxes the curve place interposing a superelevation.There are three vertical curves in this Profile Design. And the part has been satisfied even if the tie facing various call for in line font combination design. Has determined the cross section composition and various elements in Cross section design and draws up the cross section chart. The roadbed design of basic content is determining roadbed side slope form and slope. Asphalt Pavement Design using cement concrete pavement , the main structure is to determine the thickness dimension. While on the road for drainage design to ensure road safety and the smoothness of the operation. Bridge design is a major part of its plane, profile and cross-sectional design. This design not only to understand the various road-building steps，and tempered their practical engineering solutions, also learned to play a solid knowledge and flexibility in the use of the role. Keywords ：Secondaryountainous； Alignment； Paveme 目 录 摘要 I Abstract II 主要符号表 i 1 绪论 1 1.1引言 1 1.2中国公路研究现状 1 2 设计原始数据及依据 2 2.1设计原始数据 2 2.1.1自然地理概况 2 2.1.2交通量资料 3 2.2设计依据 4 3 路线设计 5 3.1道路技术等级确定 5 3.1.1交通量计算 5 3.1.2公路等级的确定 6 3.1.3路线方案的拟定与比选原则 7 3.1.4选线的一般原则 7 3.1.5山岭重丘区选线要点 7 3.1.6选线的方法与步骤 8 3.1