某某地区二级公路综合设计平面线形纵断面及横断面设计.doc

摘要 本设计为河北保定顺平新建二级公路某标段综合设计。此道路规划是作为城乡结合部且具有较大混合交通量的集散功能的公路。根据公路的功能、规划交通量和远景发展经论证后确定为二级公路,路线所经地形为平原微丘区。本设计说明书进行路线方案的比选、论证和确定，并最终制定一个最佳方案与详细的技术设计。 本设计主要包括平面线形、纵断面及横断面设计，在此基础上进行路基设计、路基边坡防护与加固、路基路面排水设计和路面设计等方面内容。路线总长为3km,包含2个平曲线和4个竖曲线。设计车速为80km/h，路基宽度12m，路面结构为沥青混凝土路面。 关键词：平面线形，竖曲线，路基设计，路面设计  ABSTRACT This is a design of a new secondary road in Shunping of Baoding city of Hebei province.It is planned as a road with a large of mixed traffic which has the combination and distribution function.According to the planned traffic volume, traffic composition, as well as the prospect for the development, after a demonstration the road is defined as a secondary road and the route goes through the plain area.Here we have the selection of the line of the program,verification and identification, and ultimately we will take the best option to make a detailed technical design. According to the horizontal alignment,vertical sectional and cross-sectional design,we will take the roadbed fillment, slope protection, drainage, pavement materials and structural design and so on.The route is 3000 meters long,which contains 2 horizontal curves,4 vertical curves.The design speed is 80km/h with 12m roadbed. The pavement structure is the asphalt concrete pavement. KEYWORDS: horizontal alignment, vertical curves, roadbed design, pavement design  目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc232990965 第一章 绪论 PAGEREF _Toc232990965 \h 5 HYPERLINK \l _Toc232990966 1.1路线设计意义 PAGEREF _Toc232990966 \h 5 HYPERLINK \l _Toc232990967 1.2沿线气候、地貌等自然特征 PAGEREF _Toc232990967 \h 5 HYPERLINK \l _Toc232990968 1.2.1气候及降水量 PAGEREF _Toc232990968 \h 5 HYPERLINK \l _Toc232990969 1.2.2地形及地貌 PAGEREF _Toc232990969 \h 5 HYPERLINK \l _Toc232990970 1.2.3地质 PAGEREF _Toc232990970 \h 6 HYPERLINK \l _Toc232990971 1.3道路等级确定和技术指标 PAGEREF _Toc232990971 \h 6 HYPERLINK \l _Toc232990972 1.3.1据规划交通量与道路功能选择公路等级 PAGEREF _Toc232990972 \h 6 HYPERLINK \l _Toc232990973 1.3.2技术标准 PAGEREF _Toc232990973 \h 7 HYPERLINK \l _Toc232