Japanese Journal of JSCE
Online ISSN : 2436-6021
Special issue (Applied Mechanics) Paper
FUNDAMENTAL STUDY ON SIGNAL RECONSTRUCTION AND FUTURE PREDICTION OF DIFFERENTIAL SETTLEMENT PROCESSES IN AN OFFSHORE AIRPORT USING DYNAMIC MODE DECOMPOSITION
Ko HATAIYu OTAKEDaiki TAKANOYuri SUGIYAMAIkumasa YOSHIDA
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2024 Volume 80 Issue 15 Article ID: 23-15010

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Abstract

This study conducts a comprehensive analysis of the recorded data on ground deformation during the construction of an offshore airport embankment, with the aim of exploring the potential for real-time future prediction and feedback control. Considering the presence of measurement errors and missing data in the observed records, this research investigates the signal reconstruction method based on Dynamic Mode Decomposition (DMD) and examines the feasibility of developing a ground deformation prediction model. The effectiveness of mrDMD, incorporating a multi-resolution representation, is validated for effectively separating local heterogeneity within the observations. Moreover, the introduction of DMD-C (a time-invariant system) highlights its compatibility with linear control theory, thereby demonstrating the feasibility of constructing a future prediction and control model for ground deformation.

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© 2024 Japan Society of Civil Engineers
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