Articles | Volume 13, issue 1
https://doi.org/10.5194/esurf-13-81-2025
https://doi.org/10.5194/esurf-13-81-2025
Research article
 | 
22 Jan 2025
Research article |  | 22 Jan 2025

Identifying fracture-controlled resonance modes for structural health monitoring: insights from Hunter Canyon Arch (Utah, USA)

Guglielmo Grechi, Jeffrey R. Moore, Molly E. McCreary, Erin K. Jensen, and Salvatore Martino

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Cited articles

Aenlle, M., Juul, M., and Brincker, R.: Corrigendum to “Modal Mass and Length of Mode Shapes in Structural Dynamics”, Shock Vib., 2021, 9821852, https://doi.org/10.1155/2021/9821852, 2021. 
Alaei, A., Hejazi, M., Vintzileou, E., Miltiadou-Fezans, A., and Skłodowski, M.: Effect of damage and repair on the dynamic properties of Persian brick masonry arches, The European Physical Journal Plus, 138, 231, https://doi.org/10.1140/epjp/s13360-023-03781-0, 2023. 
Azzara, R. M., Girardi, M., Iafolla, V., Padovani, C., and Pellegrini, D.: Long-Term Dynamic Monitoring of Medieval Masonry Towers, Frontiers in Built Environment, 6, 9, https://doi.org/10.3389/fbuil.2020.00009, 2020. 
Bandis, S. C., Lumsden, A. C., and Barton, N. R.: Fundamentals of rock joint deformation, Int. J. Rock Mech. Min., 20, 249–268, https://doi.org/10.1016/0148-9062(83)90595-8, 1983. 
Bensen, G. D., Ritzwoller, M. H., Barmin, M. P., Levshin, A. L., Lin, F., Moschetti, M. P., Shapiro, N. M., and Yang, Y.: Processing seismic ambient noise data to obtain reliable broad-band surface wave dispersion measurements, Geophys. J. Int., 169, 1239–1260, https://doi.org/10.1111/j.1365-246X.2007.03374.x, 2007. 
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Short summary
We investigated the dynamic behavior of a rock arch to understand how fractures influence its stability. Using geophones, we measured its modes of vibration and used numerical modeling to replicate them. We found that higher-order resonance modes are the most sensitive to fractures, indicating their potential as early indicators of structural damage. Therefore, monitoring these higher-order modes could provide a more accurate tool to assess the structural integrity of natural rock landforms.
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