浅谈下穿式立交排水系统的设计

The Design of Below Traverse Flyover Drainage System

下穿式立交桥约占我国已建成立交桥的75%以上。下穿式立交桥排水与一般道路排水相比具有高程上的不利条件、交通上的特殊性等特点。在设计过程中除了要满足排水系统最基本的功能要求外还需结合这些特点统筹考虑。

According to the statistics, the number of below traverse flyover has been more than 75 percent of the total number of flyover built in China. Compared with the drainage of those common roads, its drainage has traffic particularity and disadvantageous conditions which should be taken into consideration beside the most basic functions necessary to the drainage system in design.