Real-time condition assessment of railway tunnel deformation using an FBG-based monitoring system

Lu Zhou, Chao Zhang, Yi Qing Ni, Chung Yue Wang

研究成果: 雜誌貢獻期刊論文同行評審

10 引文 斯高帕斯(Scopus)

摘要

A tunnel deformation monitoring system is developed with the use of fiber Bragg grating (FBG) sensing technique, aiming at providing continuous monitoring of railway tunnel deformation in the long term, and early warning for the rail service maintainers and authorities to avoid catastrophic consequences when significant deformation occurs. Specifically, a set of FBG bending gauges with the ability of angle measurement and temperature compensation is designed and manufactured for the purpose of online monitoring of tunnel deformation. An overall profile of lateral tunnel displacement along the longitudinal direction can be obtained by implementing an array of the FBG bending gauges interconnected by rigid rods, in conjunction with a proper algorithm. The devised system is verified in laboratory experiments with a test setup enabling to imitate various patterns of tunnel deformation before the implementation of this system in an in-service high-speed railway (HSR) tunnel.

原文???core.languages.en_GB???
頁(從 - 到)537-548
頁數12
期刊Smart Structures and Systems
21
發行號5
DOIs
出版狀態已出版 - 5月 2018

指紋

深入研究「Real-time condition assessment of railway tunnel deformation using an FBG-based monitoring system」主題。共同形成了獨特的指紋。

引用此