城市道路锯齿形边沟精细设计方法

A Meticulous Design Method to Zigzag-shaped Gutter of Urban Road

针对当前城市道路锯齿形边沟设计通常采用"上3下3"或"上1下5"的方法在应用中的不足,提出根据道路实际情况进行锯齿形边沟精细设计的改进方法。首先确定边沟宽度,然后根据雨水口间距、道路纵坡及路拱横坡确定边沟分水点位置、分水点上挑高度、落水点下落高度,最后对侧石标准段外露高度及侧石规格进行调整。

Urban road zigzag-shaped gutter is always adopting the design method of top 3 & down 3 or top 1 & down 5 in the current, and aiming at the shortage of these methods, the modifi ed meticulous design method to the zigzag-shaped gutter is proposed according to the road practical conditions. Firstly, the side ditch width is determined, and then,the position and the pick height of watershed point, the drop height of water drop point are determined by rainwater inlets spacing, road longitudinal slope and camber transverse slope. Finally, the standard section exposed height and the specifications of vertical curb stone are adjusted in this paper.