地铁车辆段大型屋面的排水工程设计

Analysis on Drainage Engineering Design of Large Roof in Subway Depot

屋面雨水排水系统按雨水在管道内的流态分为压力流雨水排水系统、重力半有压雨水排水系统和重力流雨水排水系统,文章以厦门市地铁车辆段运用库、检修库等大型屋面的排水实例,比较压力流雨水排水系统、重力半有压流雨水排水系统、重力流雨水排水系统的优势和适用性,结果表明,排水工程采用压力流、半有压力流,还是重力流,应根据该工程的特点,通过技术经济比较,因地制宜,选择合宜的排水方案。

Roof rainwater drainage system is divided into pressure flow rainwater drainage system,gravity semi-pressurized rainwater drainage system and gravity rainwater drainage system according to the flow of rainwater in pipeline. This paper compares the advantages and applicabilities of pressure flow rainwater drainage system,gravity semi-pressurized rainwater drainage system and gravity drainage system by comparing the drainages of large-sized roof in the subway depot of Xiamen. How to choose the appropriate drainage program should be through technical and economic comparison based on the characteristics of the project.