Page 92 - 捷運技術 第38期
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86 賴旭明 李昌國 游澄發 臺北捷運系統蘆洲線CL700A標連絡通道1場鑄壓入沉箱工法介紹
臺北捷運系統蘆洲線CL700A標
連絡通道場鑄壓入沉箱工法介紹
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賴旭明 李昌國 游澄發
摘要
臺北捷運系統蘆洲線CL700A標三重國小站(O47站)至新莊線CK570C標道岔段潛盾隧道
長約887m，因受限於臺北縣三重市三和路1、2段路幅寬度不足，因此本段隧道於三重國小
站東側以平行方式配置，行經三重市三和路2段、長安街口後，潛盾隧道線型漸變為上、下
重疊型式，並以上、下並排方式到達新莊線CK570C標道岔段。本區段潛盾隧道之連絡通道1
因配合隧道線型上下重疊故深度較深（約地下33m），且道路施工空間狹小（路寬約8.5m）
並緊接鄰房（距離約2m），考量施工環境及時程，於上、下行隧道外圍先行施作深達33m
之圓形豎井（該連絡通道豎井採用了場鑄壓入沉箱工法施築），隨後於上、下行隧道深度位
置，構築與豎井間之水平方向連絡通道結構，待連絡通道結構體完成後則進行工作豎井內部
結構工程及回填復舊。類似豎井施工臺灣多以自重方式完成，且深度較淺，施工精度較無法
控制，本標之壓入沉箱工法在臺灣捷運系統不但是第一次引進，在臺灣土木工程更是創舉。
關鍵字：道叉段、連絡通道、豎井、場鑄壓入沉箱
Introduction of Anchor Caisson Method as Adopted on Contract CL700A
Hsu-Ming Lai Chang-Kuo Lee Chen-Fa You 3
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Abstract
The tunnel beginning from Luzhou line's Sanchong Elementary School station (O47) (contract
CL700A) to the tunnel turnout section (contract CK570C) of Xinzhuang line contract totals 887
meters in length. Due to the limit of the road width of Sanho Rd. Sec.1, 2 in Sanchong City, Taipei
County where the shield tunnel goes underground, the tunnels start running parallel from the work-
shaft of the station, gradually changing into up-down form according to the alignment of the tunnels
towards the turnout section (contract CK570C), when passing the intersection of Sanho Rd. Sec.
2 and Chang-an St. The on-site hydro pressure anchor caisson method for cross-passage 1 in this
tunnel was applied, in respect of its depth (33 m) and environments where the road width is 8.5 m
and the cross passage is only 2 m away from existing buildings. In Taiwan, similar shafts which
are mostly located at shallow depths are usually constructed using the self-weight caisson method,
which cannot be controlled with precision. This is not only the first time that the hydro pressure
anchor caisson method is to be applied in the construction of a mass transit system, but it is also a
pioneer of civil engineering in Taiwan.
Keywords：turn-out, cross-passage, shaft, hydro pressure anchor caisson
1. 太平洋建設股份有限公司組長 hmlai105@ms34.hinet.net
2. 臺北市政府捷運工程局中區工程處幫工程司 x4048370@trts.dorts.gov.tw
3. 臺北市政府捷運工程局中區工程處工務所主任 x8018178@trts.dorts.gov.tw
