文档介绍：摘要
本文主要介绍了长渊至信川CD段公路路线的设计过程。依据《公路工程技术标准》、《公路路线设计规范》进行了道路的平面设计、纵断面设计和横断面设计,并进行了排水设计和路面结构组合设计。
该路段所经地区是山岭重丘区,依据远景交通量将路线设计成设计速度为80km/h的双向四车道高速公路,,。共设有3个平曲线,一个竖曲线,查看规范要求,平曲线最小半径是400米,平曲线的最小长度是400米,凸形竖曲线的最小半径是4500米,竖曲线长度一般值是70米,该路段线形指标均满足规范要求。通过方案比选,在路段K1+700~K2+850间采用隧道方案通过比较经济。
路线设计完成后进行了路面排水设计。采用边沟、排水沟和涵洞进行排水,保证路基路面的水稳定性。此路段共设置一个涵洞,一个简支梁桥。最后进行了路面结构的组合设计。
关键词:平面设计纵断面设计横断面设计排水设计路面结构设计
Abstract
This article mainly introduced the highway route's design process of the CD section between changyuan to xinchuan. Rested on "Highway engineering Technical standard", "Highway route Design Standard" has carried on path's plane design, the longitudinal section design and the cross section design, and has carried on the draining water design and the pavement structure unitized design.
This road section passes through the area is mountain ridge Zhongqiu District。Based on the prospective traffic volume the location design speed is the 80km/h bidirectional four traffic lane highway,The route span meters, the roadbed width is meters。Establishes 3 plane curves, a vertical curve,Examines the code requirement, the plane curve minimum radius is 400 meters, the plane curve smallest length is 400 meters, the crest vertical curve minimum radius is 4500 meters, the vertical curve length general value is 70 meters, This road section linear target satisfies the code requirement. Elects through the plan ratio ,Uses the tunnel plan in road section K1+700~K2+850 to pass is quite economical。
After the pletes, I has carried on the surface drainage design. Uses the side ditch, the drain and the culvert carries on draining water, Guarantees the roadbed road surface the water stability. This road section altogether establishes a culvert, a simple support beam bridge. Finally has carried on the pavement structure unitized design.
Key words: Plane design Longitudinal section design Cross section design
Draining water design Pavement structure design
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