摘 要
本次毕业设计（论文）的选题来源于湖北省咸宁市通山县田园路的道路设计项目。这一项目旨在为当地提供一条安全、便捷、环保的道路，以满足当地居民和经济发展的需求。设计过程中，将充分考虑地形、地质、气候、水文等自然特征，以确保道路的安全性和稳定性。同时，设计将注重人性化，提高行人和骑行者的舒适度和安全性。本设计将为当地交通基础设施的完善和发展提供科学依据和决策支持，促进当地经济的繁荣和发展。
本设计任务针对湖北省咸宁市通山县田园路的道路设计，按照三级公路技术标准进行勘察和设计。设计车速为30公里/小时，路基宽8.50米，双幅两车道。起点桩号为K0+000，终点桩号为K0+717.621。起点高程为144.014962米，终点高程为177.582187米。起终点坐标分别为(X=219.593612187933, Y=-82.5901258463407)和(X=157.771312470411, Y=599.842091310487)，起终点设计高程均同地面高程。设计过程中将综合考虑地形、地质、气候、水文等自然特征，以确保道路的安全性、稳定性和环保性。同时，设计将注重人性化，提高行人和骑行者的舒适度和安全性。
关键词：道路设计；三级公路；勘察；自然特征；安全性；稳定性；
Abstract
The graduation project (thesis) topic comes from the road design project of Tianyuan Road, Tongshan County, Xianning City, Hubei Province. This project aims to provide a safe, convenient and environmentally friendly road to meet the needs of local residents and economic development. In the design process, the terrain, geology, climate, hydrology and other natural characteristics are fully considered to ensure the safety and stability of the road. At the same time, the design will focus on humanization to improve the comfort and safety of pedestrians and cyclists. This design will provide scientific basis and decision support for the improvement and development of the local transportation infrastructure, and promote the prosperity and development of the local economy.
This design task is based on the road design of Tianyuan Road in Tongshan County, Xianning City, Hubei Province, and according to the technical standards of third-level highway. The design speed is 30 km / h, and the roadbed is 8.50 meters wide, with two width and two lanes. The starting point is K0 + 000 and the end point is K0 + 717.621. The starting point elevation is 144.014962 m, and the end point elevation is 177.582187 m. The starting and ending coordinates are (X=219.593612187933, Y= -82.5901258463407) and (X=157.771312470411, Y=599.842091310487). The starting and ending design elevation is the same as the ground elevation. The design process will comprehensively consider the terrain, geology, climate, hydrology and other natural features to ensure the safety, stability and environmental protection of the road. At the same time, the design will focus on humanization to improve the comfort and safety of pedestrians and cyclists.
Key words: road design; third-level highway; survey; natural features; safety; stability;
目 录
1、设计概述
1.1、目的和要求
1.2、基本资料
1.3、总体设计原则
2、平面设计
2.1．平面线形组成要素
2.2．线形设计一般原则
2.3.直线的特点
2.4．直线的运用
2.5．圆曲线的运用
2.6．圆曲线半径的选用原则
2.7．缓和曲线的应用
3、纵断面设计
3.1、纵坡设计的一般要求
3.2、最大纵坡
3.3、最小纵坡
3.4、坡长限制
3.5、平、纵组合的设计原则
3.6、平、纵组合的基本要求
3.7、纵面线形设计中应注意避免的组合
3.8、纵断面设计方法与步骤
3.9、纵坡设计应注意的问题
3.10、纵断面图的绘制
4、横断面设计
4.1、横断面设计的要求
4.2、路基横断面的绘图步骤
4.3、平曲线加宽
4.4、平曲线超高
4.5、超高缓和段
4.6、路基的设计
4.7、横断面的设计计算
5、选线
5.1、选线原则
5.2、方案比较原则
5.3、选线方法
5.4、选线的步骤
5.5、山岭重丘区选线特点
5.6、道路选线与环境协调
5.7、选择最佳路线方案
5.8、本设计为新建三级公路，有甲乙两种方案如图
6、主要参考书目
