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浅谈道路横断面设计

摘要:道路横断面组成及类型;行车道、路肩、人行道的宽度和横坡度;中间带、路侧带的设置;平曲线加宽、超高的原因和计算方法;爬坡车道与避险车道的设置;行车视距及视距保证;横断面设计方法、土石方数量计算及调配等问题。

Abstract: This paper analyzed some problems, such as composition and type of road cross-section; width and cross slope of lane, shoulder and sidewalk; the setting of the middle band and road-side; the reasons for flat curve widening and exceeding the height and the calculation methods; the setting of climbing lane and emergency lane; traffic sight distance and sight assurance; design method of cross-section and calculation of the earthwork quantity and allocation, and so on.

关键词: 道路;勘测;横断面;设计;原则

Key words: road;survey;cross-section;design;principles

中图分类号:U41文献标识码:A文章编号:1006-4311(2010)34-0063-01

0引言

道路横断面是指中线上各点沿法向的垂直剖面,它是由横断面设计线和地面线组成的,其中横断面设计线包括行车道、路肩、分隔带、边沟、边坡、截水沟、护坡道以及取土坑、弃土堆、环境保护设施等。(剩余2365字)

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