Page 166 - 捷運技術 第38期

160 張武訓 呂文儒 趙志堅 臺北捷運信義線第四代無頂框深色覆蓋板之研究與演進

臺北捷運信義線第四代無頂框深色覆蓋板之研究與演進

張武訓 呂文儒 趙志堅 3
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1
摘要

臺北都會區捷運系統之興建已歷經近20年，工程都是沿著都會區馬路上興建，車站部份
採明挖覆蓋工法施工，向下開挖架設支撐後上方鋪設覆蓋板，一方面往下開挖施工，一方
面維持上方馬路的交通順暢。臺北市政府捷運工程局對於覆蓋板的改良不遺餘力，從初期路
網鋼製面板的覆蓋板到目前在建路網複合式覆蓋板、深色複合式覆蓋板、無頂框深色複合式

覆蓋板，歷經四代的演進與改良，增加覆蓋板面的磨擦力，提高抗滑指數與國際粗糙指標
（IRI）並降低行車噪音，大幅提昇了行車的品質與安全，本覆蓋板精進案並於今(96)年8月
榮獲臺北市政品質精進獎。本文之內容將就上述四代覆蓋板實際執行過程及改善成果進行說
明。

關鍵詞：明挖覆蓋工程、第四代無頂框深色覆蓋板、國際粗糙指標（IRI）

Study on and Evolution of the Fourth-Generation Decking System for the Taipei
MRT Xinyi Line

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Wu-Shang Chang Wen-Ru Lu Chih-Chien Chao 3

Abstract
Construction of the MRT system for the Taipei metropolitan area has been going on for nearly

20 years. Most of the construction is performed along streets in the urban area. To reduce the
negative impact on traffic, a decking system was commonly used while the construction was carried
out. After years of research, the new generation decking system (4th) was developed by DORTS,
which provides safer driving conditions, higher slip-resistance, lower noise, and lower International
Roughness Index (IRI). It shows that DORTS continues to improve the quality of decking and

related traffic facilities to offer citizens better living conditions. DORTS' South District Project
Office won an“Excellence Award”from Taipei City government in August 2007, for improving
the decking system. This article introduces the evolution history of the decking systems of the Taipei

MRT and their implementation.
Keywords: Cut & Cover, the 4th Decking System, International Roughness Index (IRI)

1. 臺北市政府捷運工程局南區工程處處長 wschang@trts.dorts.gov.tw
2. 臺北市政府捷運工程局南區工程處工務所主任 wenru@trts.dorts.gov.tw
3. 臺北市政府捷運工程局南區工程處工程員 chaocc@trts.dorts.gov.tw