Monitoring a Railway Bridge with Distributed Fiber Optic Sensing Using Specially Installed Fibers

被引：1

作者：

Kishida, Kinzo ^{[1
]}

Aung, Thein Lin ^{[1
]}

Lin, Ruiyuan ^{[2
]}

机构：

[1] Neubrex Co Ltd, Sakaemachidori 1-1-24,Chuo ku, Kobe 6500023, Japan

[2] OlitGlobal Technol, 3Fl 329 Huaxia Rd, Kaohsiung 813016, Taiwan

来源：

SENSORS | 2025年 / 25卷 / 01期

关键词：

DFOS; DAS; SHM; railway monitoring; bridge monitoring; SENSORS;

D O I：

10.3390/s25010098

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This article explores the use of distributed fiber optic sensing (DFOS) technology in monitoring civil infrastructure, with a concrete example of an elevated railway bridge in Taiwan. The field test utilized multiple strain-sensing fibers attached to a 1 km span of a bullet train railway bridge, which were combined to calculate the 3-dimensional bridge deformation. The installed sensing system and continuous measurements enabled quick safety confirmation after earthquakes of Richter scale 6.4 and 6.8 magnitudes occurred. Finally, the dynamic monitoring of a bullet train using Distributed Acoustic Sensing (DAS) demonstrated the merits of fiber optic sensing for both static and dynamic measurements. The empirical data gathered through this work aid in the evaluation of DFOS technology for structural-monitoring applications.

引用

页数：14