High-speed railway bridge dynamic measurement based on GB-InSAR technology

Miao Liu; Ke-liang Ding; Xianglei Liu; Zichao Song

doi:10.1117/12.2221988

9 December 2015 High-speed railway bridge dynamic measurement based on GB-InSAR technology

Miao Liu, Ke-liang Ding, Xianglei Liu, Zichao Song

Proceedings Volume 9808, International Conference on Intelligent Earth Observing and Applications 2015; 98083C (2015) https://doi.org/10.1117/12.2221988
Event: International Conference on Intelligent Earth Observing and Applications, 2015, Guilin, China

Abstract

It is an important task to evaluate the safety during the life of bridges using the corresponding vibration parameters. With the advantages of non-contact and high accuracy, the new remote measurement technology of GB-InSAR is suitable to make dynamic measurement for bridges to acquire the vibration parameters. Three key technologies, including stepped frequency-continuous wave technique, synthetic aperture radar and interferometric measurement technique, are introduced in this paper. The GB-InSAR is applied for a high-speed railway bridge to measure of dynamic characteristics with the train passing which can be used to analyze the safety of the monitored bridge. The test results shown that it is an reliable non-contact technique for GB-InSAR to acquire the dynamic vibration parameter for the high-speed railway bridges.

Citation Download Citation

Miao Liu, Ke-liang Ding, Xianglei Liu, and Zichao Song "High-speed railway bridge dynamic measurement based on GB-InSAR technology", Proc. SPIE 9808, International Conference on Intelligent Earth Observing and Applications 2015, 98083C (9 December 2015); https://doi.org/10.1117/12.2221988

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KEYWORDS

Bridges

Radar

Interferometry

Synthetic aperture radar

Global Positioning System

Safety

Electromagnetic radiation

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