武广高铁武汉站屋面虹吸雨水工程施工技术

高铁武汉新站屋面采用了58个虹吸雨水排放系统，本文阐述了主拱区、次拱区、局部立管、HDPE埋地管敷设和连接以及薄壁不锈钢管道等处的虹吸装置施工工艺，并对系统设计中存在的核心问题及设计要点进行了总结，指出遵照规范设计、施工，并结合工程实际设置虹吸雨水排放系统，才能保证系统及屋面的安全性。

Construction Technology of Siphonic Roof Engineering for Wuhan Railway Station of Wuhan-Guangzhou High-speed Railway

58 siphonic drainage systems were applied on roof of Wuhan Railway Station. The article details siphonic drainage system construction technology of main arch area, secondary arch area, local standing pipes, HDPE underground pipes laying and connecting, thin wall stainless steel pipes, and so on. It also summarizes key problems and key points of the systems design, points out security of the systems and roof will be ensured by design and construction according to relevant standards and setting siphonic drainage system based on engineering actual conditions.