3D雷射扫描应用於铁路隧道空间资讯与检测之案例探讨-中兴顾问社.PDF

2015電子計算機於土木水利工程應用研討會 2015 Conference on Computer Applications in Civil and Hydraulic Engineering September 03-04, 2015, National Chung Hsing University, Taichung, Taiwan 3D雷射掃描應用於鐵路隧道空間資訊與檢測之 案例探討 1 2 邱顯晉 、林金成 摘要 維護環島鐵路沿線約百餘座營運中隧道安全及提升電氣化功能，隧道檢測極 其重要。因此，為瞭解營運中隧道整體空間是否滿足電氣化要求及檢測襯砌異狀 範圍等課題，本文以某營運路線隧道群為例，應用高解析且快速之主動式 3D雷射 掃描 (GRP5000)分別探討沿線隧道內空間資訊、襯砌掃描影像判釋等實務技術，以 及嘗試運用 Google Earth整合應用隧道掃描影像及隧道淨空三維圖資，以瞭解影響 電車線架設之分布區域。同時，根據雷射反射強度取得掃描影像與前期影像比較， 以掌握隧道異狀的變化情形。再經由現場目視檢核隧道襯砌裂縫及滲水等異狀與 掃描影像分別比對，綜合探討作為輔助隧道檢測評估之參考。 關鍵詞：鐵路隧道、雷射掃描、淨空測量、 GRP5000 、Google Earth A Case Study on the Applications of 3D Laser Scanning in Railway Tunnel Spatial Information and Inspection 1 2 S. J., Chiou and C. C. Lin ABSTRACT The inspection on tunnel lining is an extremely important technology for the maintenance of operational tunnel safety. Furthermore, inspection results may facilitate the feasibility assessment of railway tunnel function improvement by electrification installation. Various inspections, including 3D laser scanning using GRP5000, GIS query system with Google Earth, and spatial information integration performed in the operational railway tunnels in Taiwan are introduced in the paper to demonstrate the practical application of the spatial image technology in tunnel maintenance. Keywords: Railway Tunnel, 3D Laser Scanning, Clearance Measurement, GRP5000, Google Earth 1 財團法人中興工程顧問社副研究員 2 財團法人中興工程顧問社高級研究員 741