成都轨交防淹门设置标准的探讨

Discussion on Floodgate Standard for Chengdu Rail Transit

地铁规范要求轨交线路在进出水域的两端适当位置设置防淹门或采取其他防淹措施。由于规范没有对河流或湖泊的特征进行明确的定义,在轨交建设过程中,各地对该条文的理解和执行的情况不一致,甚至自相矛盾,给业主和设计单位带来很大的困扰。本文以成都轨交防淹门设置为案例,对正确理解该条文和执行标准进行一些探讨并提出了一些建议。

According to metro design code,it is required to install floodgate or other flood proofing measures at appropriate position of both ends of water-crossing section.Due to lack of clear definition of river and lake,there are different understanding and implementation of this clause in many cities,which brings much confusion to the client and designer.Taken the floodgate of Chengdu rail transit as an example,it makes a discussion on correct understanding and implementation of the clause.Some suggestions are put forward,which can provide reference for rail transit engineering construction in other cities.