1、 I 摘 要 本次毕业设计为黄石市长乐大道 A9 段公路设计，所处位置的地貌为长江中下游丘 陵地貌单元，场地地貌单元大部分为丘陵，剥蚀堆积岗地。 主要进行公路线形、路基和路面设计。其中，线形设计包括选线、方案比选、平面 设计和纵断面设计；路基设计包括横断面设计、路基边坡设计等；路面设计包括路面结 构层设计、路面结构层厚度设计和路面结构层验算。 通过对当地交通量、地形、气候、水文、地质等状况的深入调查, 确定了道路的等 级以及道路设计的各个技术指标，为公路路线方案的比选准备了原始材料，确定了线路 的平面位置。并且本设计对方案进一步细化。 对路线的平面和纵断面进行了综合分析，根据技术标准及当地实际
2、情况确定了路基 宽度、高度及边坡坡度并且对路面材料、横断面布置、曲线超高及加宽的设置做了精心 设计。 关键词: 线形; 缓和曲线; 竖曲线; 路基; 路面 II Abstract This graduation design is a design of Changle road A9 highway in Huangshi City, the location of the landscape as the middle and lower reaches of Yangtze River hilly landform unit, most of the field geomorphic u
3、nits are the hills, and denudation. This road mainly carrys on the road alignment, roadbed and pavement design. Then,alignment design includes to choose the line, project to compare to choose, the flat surface design and vertical section design.The roadbed design includes the cross section design an
4、d the roadbed side slope design etc; The pavement design includes pavement structure layer design, pavenent structure layer thickness design and pavement structure layer to check to calculate. According to investigating the further state of the volume of traffic, local topography,climate,hydrology,g
5、eology,etc,then confirms the class of highway and technical standard,selecting to prepare the firsthand material of scheme of the highway, and fixing the level of the circuit. On the route of the plane and vertical section are analyzed, according to the technical standard and the local actual situat
6、ion to determine the roadbed width, height and slope and pavement materials, cross section layout, curve superelevation and broadening the settings made elaborate design. Key words: Alignment; Easement curve; Vertical curve; Road bed; Pavement III 目 录 绪 论.1 1 设计原始资料和依据.2 1.1 地形2 1.1.1 地形地貌.2 1.1.2 水文 2 1.1.3 气象 2 1.1.4 植被 2 1.1.5 区域地质条件 3 1.1.6 筑路材料及运输条件 3 1.1.7 挡土墙设计资料 3 1.
