都市隧道设立防水隔舱之探讨

The Floodgate Built in the City Tunnel

有鉴于公元2001年9月侵台的纳利台风造成台北捷运系统部分路线停止运转长达一个多月,严重影响都会区六十万以上民众的行程。为避免类似事件再次发生,台北捷运工程局在后续新建线路中,对于有可能发生洪水灾害之源头或系统交会车站之隧道内设置全断面防水隔舱,期望使洪水灾害发生之危害区域控制在局部范围内,以往其它都市所设置之全断面防水隔舱都是由各设置地点之车站独立开关,本系统则为整体行车安全考虑,将隔舱之开关控制区分成三层级,最上位之控制为「行车控制中心」以远程监控,其次为各设置隔舱之车站旅客询问处的控制,最后才是人员至现场直接开关电源,隔舱设立后能于灾害发生时及时安全关闭乃系统成功之关键,故将其监控设置过程列为说明重点。

In the September of 2001, the typhoon named Na - Li brought storm and the floodwater made the Taipei MRT 18 station flooded. To avoid the MRT station and tunnel from being flooded again as weft as to protect public and transit personnel and properties from damages caused by flooding, the Department of Rapid Transit system, TCG built floodgates. This paper is discussing the floodgate building process. Besides, a duly close-open operation and interfacing system of the floodgate can ensure the safety of the train traveling in the tunnel while situation happened. The process of setting up monitoring system is listed as one of the key discussion points in the content.