Page 119 - 捷運技術 第33期

捷運技術半年刊 第 33 期 94 年 8 月 113

傳統潛盾工法穿越都市河川之探討

—以新莊線 CK570C 為例

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林聿群 吳沛軫 林坤霖 胡庭豪 謝清泉
要
摘摘
摘 要要
摘 要
台北捷運新莊線 CK570C 區段標東起大橋國小 O8 站西側，在台北橋北側以平行台北橋
方式西行，並穿越淡水河至三重後，續沿重新路西行至捷運路底之 O5 站止，全長約 3.2 公里，
共包含三座明挖覆蓋站體及一座明挖覆蓋道岔結構體及四段單線雙向潛盾隧道，分為
CK240、CK241 及 CK242 等三個子標。
其中 CK240 子標係包括道岔結構體及其東西兩段潛盾隧道，東段隧道除穿越淡水河床
外，其最大覆土深超過 30m，為目前國內最深之潛盾隧道，本文主要介紹過河段潛盾隧道之
設計及施工考量，最後並檢討目前已施工部份，提供後續工程之參考。

關鍵詞：CK240 標、道岔結構體、過河潛盾隧道、冰凍工法
Planning and Consideration of a Shield

Tunnel Passing through a Riverbed－Case

Study of Lot CK570C

Lin Yue-chyun Wu Pei-Jeen Lin Kun-Lin Hu Tyng-Huar Jumbo Shei

Abstract

Sectional contract CK570C on the Taipei MRT Xinzhuang line starts from west of Daqiao
Elementary School and runs west just to the north of Taipei Bridge, passing under the Danshui
River to Sanchong. It continues along Chongxin Road until the terminal station O5. It covers three
subcontracts, CK240, CK241 and CK242. It is 3.2 kilometers in length and includes three
cut-and-cover stations, a cut-and-cover turnout structure and four shield tunnel sections of a single
line with double tracks.
CK240 includes one cut-and-cover turnout structure and two shield tunnel sections. The
turnout structure separates the tunnel into east and west tunnels. The east tunnel passes under the
Danshui River to depths of over 30 meters, making it the deepest tunnel in Taiwan. This article lays
out our design and construction considerations when building the tunnel under the river. It will then
provide analysis of the construction that has already been completed as a reference for later
projects.
Key words: CK240, turnout, shield tunneling through a riverbed, ice-lock.

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台北市政府捷運工程局北區工程處土木第九工務所主任 linyc@trts.dorts.gov.tw
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台北市政府捷運工程局北區工程處處長 tdirect@trts.dorts.gov.tw
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中興工程顧問公司新莊 DK194 設計標計劃經理 geolin@mail.sinotech.com.tw
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中興工程顧問公司大眾運輸工程二部經理 geolin@mail.sinotech.com.tw
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新莊線 CK570C 標潛盾隧道高水壓破鏡專家顧問 jumbo410320@yahoo.com.tw