We used array-based ambient vibration modal analysis and eigenfrequency modeling to characterize the dynamic behavior and structural conditions of a partly collapsed lava tube roof. Multiple resonance modes were identified from spectral and cross-correlation analyses, and used to calibrate a heterogeneous numerical model of the lava tube. Our study shows that the combination of experimental and numerical modal analysis is a valuable tool for mapping and structural characterization of underground cavity roofs.

Modal analysis of a lava tube roof complex. Tabernacle Hill, Utah, USA / Grechi, G.; Moore, J. R.; Jensen, E. K.; Mccreary, M. E.; Czech, T. L.; Festin, M. M.. - In: ROCK MECHANICS AND ROCK ENGINEERING. - ISSN 0723-2632. - (2024). [10.1007/s00603-024-03868-9]

Modal analysis of a lava tube roof complex. Tabernacle Hill, Utah, USA

Grechi G.
Primo
;
2024

Abstract

We used array-based ambient vibration modal analysis and eigenfrequency modeling to characterize the dynamic behavior and structural conditions of a partly collapsed lava tube roof. Multiple resonance modes were identified from spectral and cross-correlation analyses, and used to calibrate a heterogeneous numerical model of the lava tube. Our study shows that the combination of experimental and numerical modal analysis is a valuable tool for mapping and structural characterization of underground cavity roofs.
2024
modal analysis; ambient vibrations; numerical modeling; structural health monitoring; underground cavities
01 Pubblicazione su rivista::01a Articolo in rivista
Modal analysis of a lava tube roof complex. Tabernacle Hill, Utah, USA / Grechi, G.; Moore, J. R.; Jensen, E. K.; Mccreary, M. E.; Czech, T. L.; Festin, M. M.. - In: ROCK MECHANICS AND ROCK ENGINEERING. - ISSN 0723-2632. - (2024). [10.1007/s00603-024-03868-9]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1711591
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