Page 81 - 捷運技術 第51期

捷運技術 第51期 77

臺北捷運信義線CK570H區段標施工

葉志隆 1

摘要
捷運東門站屬新蘆線及信義線交會車站，也是捷運工程第一條併共同管道工程發包之工
程，車站為地下4層結構分別為大廳層、上月臺層、設備層及下月臺層，連續壁開挖深度超
過礫石層至黏土層，含共同管道共5條潛盾隧道施工，工程施工風險高，為屬民防車站頂版
結構採加厚設計，及通風口設有避彈坑等設施，除3號及8號出入口與聯合開發大樓共構設計
外，其餘6個出入口為造型鋼構設於人行道上，大廳結構版樑作結構加強，預留可敲除牆版
可與建物辦理連通，2號出入口兼人行地下道口，可與金山南路既有之3個人行地下道相通，
使通行更加便利。潛盾隧道為避免穿越民房，係利用既有道路、中正紀念堂園區及學校建築
物下方作穿越，線形須以200m之最小曲率半徑作規劃設計，復舊階段配合信義路全線1-5段
路型作道路暨附屬設施更新及改善。

關鍵詞：共同管道、道路復舊、礫石層、線形、可敲除牆版

Construction of Taipei MRT Xinyi Line Section Contract

CK570H

Chih-Lung Yeh 1

Abstract
Dongmen Station, a transfer station for the Xinlu and Xinyi lines, is the first MRT route to be
built in conjunction with common ducts. The station is a four-level underground structure, consisting
of a concourse, an upper platform, a mezzanine, and a down-track platform level. Diaphragm
walls were excavated to a depth beneath gravel layers to reach clay. The project involved a total of
five shield tunnels, including a tunnel containing common ducts, making it high risk. The station
was categorized as a civil defense station, with a thick top-plate design and ventilation shafts with
bulletproof pits. Apart from Exits 3 and 8, which are integrated with a joint development building,
the remaining six exits feature stylish steel structures built on sidewalks. Strengthened beam
columns were built at the concourse level and knockout panels were reserved for future connection
with adjacent buildings. Exit 2, which is shared with a pedestrian underpass, connects with three
existing pedestrian underpasses that conveniently lead to Jinshan South Road.
Shield tunnels were built beneath existing roads, the Chiang Kai-Shek Memorial Hall
park, and schools to avoid passing beneath residential buildings. The route alignment adopted a
minimum radius of curvature of 200 meters. During the rehabilitation phase, road renovation and
improvements were conducted along sections 1-5 of Xinyi Road.

Keywords: common duct, road rehabilitation, gravel layer, alignment, knockout panel

1 臺北市政府捷運工程局南區工程處第四工務所副工程司 jyl@trts.dorts.gov.tw