捷運隧道規劃、設計、施工面面觀

Comprehensive Views on Tunnel Planning, Design and Construction for Rapid Transit

朱旭(Hsu Ju)

《地工技術》 60期 (1997/04) Pp. 5-30

https://doi.org/10.30140/SG.199704.0001

摘要

台北都會區大眾捷運系統為政府投資數千億之重大交通工程，目的為解決都會區大眾「行」的問題，其不僅可增進民眾生活品質，並促進國家經濟發展與國際地位之提升，尤其於台灣首善之區全面推展，更為各界期盼與囑目之焦點。本文乃筆者就參與國內首樁捷運工程多年之經驗，認為捷運隧道工程之規劃、設計與施工有別於其他工程，故將隧道斷面、形狀、定線與通風等之規劃原則，隧道襯砌、接頭性質與施工環境等之設計理念，以及鏡面開挖、曲線發進、急曲線施工控制、建物保護與沉陷量控制及隧道測量等施工技術獨特之處作重點之回顧及介紹。藉由本文讀者當可瞭解捷運系統充分考量安全性及便利性，而嚴格之工程品質要求與安全技術考量，將可供日後國內其他城市興建捷運地下隧道工程之參考。

關鍵字

鏡面開挖 ； 車輛包絡線 ； 曲線發進 ； 建物保護 ； 沉陷量控制 ； 分歧式潛盾機 ； 同心圓（親子型）潛盾機

並列摘要

The Taipei Metropolitan Area Rapid Transit Systems is an important transportation project which the government has invested hundred billions NT dollars for solving urban traffic problems. The completion of the project will not only improve quality of life, but also will expedite national economic development as well as promotion of international standing. This project, which is being wholly underway at the capital area of Taiwan, has become a focus of all eyes and received eager expectations from various levels.Based on a number of years experience on participating in the first rapid transit project in the country, the author believes that planning, design and construction of tunnel engineering for transit system are different from others. Particularily, the following items are introduced and reviewed in this paper:(1) planning principle related to tunnel cross section, shape, alignment and ventilation,(2) design philosophy involving tunnel linings, joints and construction environment,(3) construction technology on mirror face excavation, curve-launching, driving control for sharp curve, building protection, settlement control, tunnel survey, etc.,Hopefully, readers may realize that both safety and convenience have been sufficiently taken into account by Taipei rapid transit authority. In addition, considerations for strict quality requirements and safety control of construction would be good reference for future construction of underground tunnel for rapid transit system at other cities in the country.

並列關鍵字

mirror face excavation ； vehicle envelope ； curve-launching ； building protection ； settlement control ； main shield with a ramified shield ； nesting parent-child shield