台北捷運系統隧道檢測作業簡介

介绍目前台北捷運系統採用之DER結構檢查評估方法之應用情形,並針對結構安全評估與隧道影像掃描資料建立之作法加以說明。DER檢查方法目前已廣泛應用於橋梁結構檢查,台北捷運公司目前將其擴大應用至隧道結構例行檢查工作上,包括平時及定期之目視結構檢查作業,並建立專用之結構管理资訊系統,將結構之各項基本资料、執行檢测結果及維修紀錄等資訊加以管理應用。另外,針對隧道結構安全性之評估作業,則透過專業之工程顧問公司協助進行,針對隧道結構潛在性及隱藏性之瑕疵加以檢測評估,同時利用數位影像掃描技術,將隧道内之完整影像掃描儲存為數位檔案,作為影像紀錄及未來追蹤比對之依據。

INTRODUCTION OF TUNNEL INSPECTION IN TAIPEI RAPID TRANSIT SYSTEM

The application of DER evaluation method of structure inspection and the operation of visual scan database for evaluation of tunnel structure safety in TMRTS are introduced. The DER evaluation method is widely used in bridge structure inspection. Taipei Rapid Transit Corporation (TRTC) adopts the DER evaluation method in ordinary and periodical tunnel structure inspections. The basic structure information, results of structure inspection and maintenance records of TRTS are managed in a unique Structure Management Information System. The evaluation of tunnel structure safety should be carried out by the professional engineering consultants, who evaluate the potential defaults of the tunnel structure. In the meantime, the visual image of entire tunnel surface can be scanned into digital files and recorded by using the digital image scan technology. The visual image will be used for the reference and comparison of future structure safety evaluation.