论文总字数：20798字

摘 要

我国最南端的岛屿省是海南省，它极其特殊的地理环境就同样决定了公路运输在岛内各种交通运输方式中占据了最重要的地位。海南省的横线万宁到儋州到洋浦的高速公路，是海南省在“十二五”规划中“田字型”高速公路中的重要组成部分。东边连接已建成的环岛高速公路东线段，西边连接已建成的环岛高速公路西线段，总体上呈现东西走向。起点位于万宁市的后安镇，中途经过万宁市、琼海市、琼中县、屯昌县、儋州市等5个市（县），主线全长约164.100km。它连接了东、中、西线三条纵向高速公路（中线高速公路规划建设中），海南“田字型”高速公路网主骨架对于合理完善海南公路网具有重要意义，为海南争做国际旅游岛的建设及和谐社会发展提供强有力的交通保障。在设计过程中学习使用了Dicad Pro，从而避免了大量的计算与繁复的机械劳动，使得设计的效率和精准度大大提高了。设计中，以安全、经济、实用、美观为原则，严格按照国家规范和标准进行道路施工图设计，最终完成了道路选线定线，纵断面设计、平面设计、路面结构层设计、横断面设计等内容。项目区处于海南岛中部偏东的山区，路线总体走向为南东至北西向，沿线穿越的地貌单元有低丘状台地、盆地、低山丘陵地貌、河谷及阶地、山间凹地，由于地势起伏高差并不是很大，故以克服微丘障碍为主，为使道路线形更加平顺美观，且利于驾驶员操作与行车安全。

关键词：Dicad Pro；道路设计；选线定线；平面设计；纵断面设计；横断面设计

Abstract

China"s southernmost island province, Hainan Province, is its very special geographical environment on the same road transport in all modes of transportation to the island occupies the most important position in. Manning the lines to Danzhou, Hainan Province, to Yangpu expressways in Hainan Province is in the "Twelve-Five" plan "field type" important part of highway. Connection was built to the East of the Eastern segment of Expressway around the island, connection was built to the West of the West segment of Expressway around the island, generally East to West. Starting point is located in the post town, Wanning city, midway through, Wanning, Qionghai, Qiongzhong and tunchang County, Danzhou city, and etc in 5 municipalities (counties), the main line is about 164.100km。 It connects to the East, middle and West longitudinal Expressway (Highway planning and construction of the middle), Hainan "font" expressway network backbone is vital for perfect Hainan highway network, to struggle is the building of the international tourism island of Hainan and provides powerful traffic guarantee harmonious social development. Dicad Pro is used in the design process, thus avoiding a lot of calculations and the intricate machinery of labor, making it greatly improves the efficiency and accuracy. Design, based on the principle of safe, economical and practical, beautiful, in strict accordance with national norms and standards for road construction design, finished the road alignment-alignment of vertical section design, graphic design, design, the cross-sectional design of pavement structure layers and so on. Project district in Hainan Island Central partial East of mountain, route General to for South East North West to, along through of landforms unit has low Hill-like Mesa, and basin, and low mountain hills landforms, and Valley and the order to, and mountain between concave to, due to terrain downs high poor is not is big, so to overcome micro Hill obstacles mainly, for makes road linear more smooth beautiful, and conducive to driver operation and lane security.

Keywords: Dicad Pro; Road Design; Route Alignment; Graphic Design; Vertical Section Design; Cross Section Design

目录

摘 要 I

Abstract II

第一章 绪论 4

1.1 修建该道路目的和意义 4

1.2 公路所在区域自然情况 4

1.3 主要技术指标的确定和论证 4

第二章 路线设计 6

2.1 路线方案的拟定与比选 6

2.2 平面设计 7

2.2.1 直线 7

2.2.2 圆曲线 8

2.2.3 缓和曲线 8

2.3 纵断面设计 8

2.3.1 纵断面设计步骤 8

2.3.2 纵坡与坡长限制 9

2.3.3 竖曲线 9

2.3.4 平纵组合设计 10

第三章 路基设计 10

3.1 路基横断面设计 11

3.1.1 公路横断面组成 11

3.2 路基土石方计算和调配 12

3.3 桥涵设计 12

第四章 路面设计 12

4.1 路面等级的确定 13

4.2 路面结构组合设计 13

4.3 路面厚度设计与计算 14

4.4 路面结构组合设计 16

4.5 方案技术经济比较 19

结束语 20

致 谢 21

参考文献 22

附录 23

第一章 绪论

1.1 修建该道路目的和意义

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