摘要
在地势平坦的城市中,受各种因素的影响,道路纵坡时常出现小于最小排水坡度的情况。通过规范对城市道路最小纵坡的要求,分析设置最小纵坡的原因及其合理性,阐述了在地势平坦的城市道路设计中最小纵坡的应用及不能满足最小纵坡(最小排水坡度)时锯齿形偏沟的使用方法及注意事项,解决城市道路路面排水与线形美观的矛盾,以利于路面雨水快速排除。
The longitudinal slope of road is often less than the minimum drainage gradient influenced by various factors in the flat terrain of city.According to the requirement of the minimum longitudinal gradient of urban road in the standard,the article analyzes the reason of setting up the minimum longitudinal gradient and its rationality,and sets forth the application of the minimum longitudinal gradient in the design of the roads in the flat terrain of city,and the using method and the matters for attention of zigzag side ditch when not able to meet the minimum longitudinal gradient(the minimum drainage gradient)in order to solve the contradiction between the pavement drainage and the alignment beauty of urban road and to benefit the rapid discharge of the pavement rainwater.
出处
《城市道桥与防洪》
2018年第4期23-25,7-8,共3页
Urban Roads Bridges & Flood Control
关键词
最小纵坡
锯齿形偏沟
挑水点
落水点
minimum longitudinal gradient
zigzag side ditch
raised curb
drop point
