Abstract
Debris impact has an important role in structural damage during extreme coastal events. Understanding the transport of debris and the characteristic of its motion is crucial because the debris impact depends on debris motion. This study investigated floating debris dispersion and motion by conducting laboratory experiments that considered the effects of a structural array, or a gridded layout of city-like buildings. Physical model experiments were conducted for two different hydrodynamic conditions: (1) current only; and (2) current + wave combined cases. Debris was released from a certain height in a repeatable way. Visual data were collected by four overhead video cameras and a particle tracking algorithm was implemented to track debris motion. Onshore debris spreading was much larger in the current + wave combined cases than in the current only trials. The results indicated that the structural array restricted the lateral spreading of debris onshore, and between the buildings, the spread of the particles approached a Gaussian distribution as the particles move inland. The offshore dispersion of debris particles was slightly higher when structures were present due to the additional turbulence that was created by the reflected waves. Debris spreading angles (θs) were calculated for each case and compared with the angles used in the current engineering practice. The presented results aimed to increase the current knowledge on debris motion and spreading during extreme events, such that engineers might build more resilient coastal communities.
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Acknowledgments
The authors were supported by US NSF grants CMMI-1661052, OCE-1830056 and ICER-1940315. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the NSF. The authors would like to express their gratitude to Joaquin Pablo MorrisBarra, Sean Duncan, Pedro Lomonaco, Tim Maddux, and O.H. Hinsdale Wave Research Laboratory staff for their help with the laboratory experiments and Cagatay Tasci for his support in OpenCV.
References
Beven, J. L., R. Berg, and A. Hagen. 2018. Hurricane Michael. National Hurricane Center Tropical Cyclone Rep. Miami, FL: National Hurricane Center.
Bradski, G. 2000. “The OpenCV library.” Dr. Dobb’s J. Software Tools 120: 122–125.
Cheng, H. D., X. H. Jiang, Y. Sun, and J. Wang. 2001. “Color image segmentation: Advances and prospects.” Pattern Recognit. 34 (12): 2259–2281. https://doi.org/10.1016/S0031-3203(00)00149-7.
Comiti, F., A. Lucía, and D. Rickenmann. 2016. “Large wood recruitment and transport during large floods: A review.” Geomorphology 269: 23–39. https://doi.org/10.1016/j.geomorph.2016.06.016.
FEMA. 2007. Public assistance debris management guide. Washington, DC: FEMA.
Goseberg, N., J. Stolle, I. Nistor, and T. Shibayama. 2016. “Experimental analysis of debris motion due the obstruction from fixed obstacles in tsunami-like flow conditions.” Coastal Eng. 118: 35–49. https://doi.org/10.1016/j.coastaleng.2016.08.012.
Henderson, F. M. 1966. Open channel flow. New York: MacMillan.
Kasaei, S., E. Bryski, and A. Farhadzadeh. 2021. “Probabilistic analysis of debris motion in steady-state currents for varying initial debris orientation and flow velocity conditions.” J. Hydraul. Eng. 147 (9): 04021032. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001915.
Kennedy, A., et al. 2020. “Hurricane Michael in the Area of Mexico Beach, Florida.” J. Waterway, Port, Coastal, Ocean Eng. 146 (5): 05020004. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000590.
Kennedy, A., J. Moris, A. Van Blunk, P. Lynett, A. Keen, and P. Lomonaco. 2021. “Array and debris loading, in wave, surge, and tsunami overland hazard, loading and structural response for developed shorelines: Array and debris loading tests.” In DesignSafe-CI. Alexandria, VA: National Science Foundation.
Moris, J. P., O. Burke, A. B. Kennedy, and J. J. Westerink. 2022. “Wave-current impulsive debris loading on a coastal building array. J. Waterway, Port, Coastal, Ocean Eng. 149 (1): 04022025.
Mousavi, M. E., J. L. Irish, A. E. Frey, F. Olivera, and B. L. Edge. 2011. “Global warming and hurricanes: The potential impact of hurricane intensification and sea level rise on coastal flooding.” Clim. Change 104 (3): 575–597. https://doi.org/10.1007/s10584-009-9790-0.
Munson, B. R., B. F. Young, and T. H. Okiishi. 2005. Fundamentals of fluid mechanics. 5th ed. Hoboken, NJ: Wiley.
Naito, C., C. Cercone, H. R. Riggs, and D. Cox. 2014. “Procedure for site assessment of the potential for tsunami debris impact.” J. Waterway, Port, Coastal, Ocean Eng. 140 (2): 223–232. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000222.
Nistor, I., N. Goseberg, and J. Stolle. 2017. “Tsunami-driven debris motion and loads: A critical review.” Front. Built Environ. 3: 2. https://doi.org/10.3389/fbuil.2017.00002.
Nistor, I., N. Goseberg, J. Stolle, T. Mikami, T. Shibayama, R. Nakamura, and S. Matsuba. 2016. “Experimental investigations of debris dynamics over a horizontal plane.” J. Waterway, Port, Coastal, Ocean Eng. 143 (3): 04016022. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000371.
Park, H., M. J. Koh, D. T. Cox, M. S. Alam, and S. Shin. 2021. “Experimental study of debris transport driven by a tsunami-like wave: Application for non-uniform density groups and obstacles.” Coastal Eng. 166: 103867. https://doi.org/10.1016/j.coastaleng.2021.103867.
Rueben, M., D. Cox, R. Holman, S. Shin, and J. Stanley. 2015. “Optical measurements of tsunami inundation and debris movement in a large-scale wave basin.” J. Waterway, Port, Coastal, Ocean Eng. 141 (1): 04014029. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000267.
Stolle, J., N. Goseberg, I. Nistor, and E. Petriu. 2018. “Probabilistic investigation and risk assessment of debris transport in extreme hydrodynamic conditions.” J. Waterway, Port, Coastal, Ocean Eng. 144 (1): 04017039. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000428.
Stolle, J., I. Nistor, and N. Goseberg. 2016. “Optical tracking of floating shipping containers in a high-velocity flow.” Coastal Eng. J. 58 (02): 1650005. https://doi.org/10.1142/S0578563416500054.
Stolle, J., I. Nistor, N. Goseberg, T. Mikami, and T. Shibayama. 2017. “Entrainment and transport dynamics of shipping containers in extreme hydrodynamic conditions.” Coastal Eng. J. 59 (03): 1750011. https://doi.org/10.1142/S0578563417500115.
Stolle, J., T. Takabatake, G. Hamano, H. Ishii, K. Iimura, T. Shibayama, I. Nistor, N. Goseberg, and E. Petriu. 2019. “Debris transport over a sloped surface in tsunami-like flow conditions.” Coastal Eng. J. 61 (2): 241–255. https://doi.org/10.1080/21664250.2019.1586288.
Stolle, J., I. Nistor, N. Goseberg, and E. Petriu. 2020. “Development of a probabilistic framework for debris transport and hazard assessment in tsunami-like flow conditions.” J. Waterway, Port, Coastal, Ocean Eng. 146 (5): 04020026. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000584.
Te Chow, V. 1959. Open channel hydraulics. New York: McGraw-Hill.
Yeh, H., S. Sato, and Y. Tajima. 2013. “The 11 March 2011 East Japan earthquake and tsunami: Tsunami effects on coastal infrastructure and buildings.” Pure Appl. Geophys. 170 (6): 1019–1031. https://doi.org/10.1007/s00024-012-0489-1.
Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 149 • Issue 2 • March 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: May 27, 2022
Accepted: Oct 13, 2022
Published online: Dec 30, 2022
Published in print: Mar 1, 2023
Discussion open until: May 30, 2023
ASCE Technical Topics:
- Buildings
- Coastal engineering
- Coastal processes
- Coasts, oceans, ports, and waterways engineering
- Continuum mechanics
- Debris
- Dynamics (solid mechanics)
- Earth materials
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Environmental engineering
- Fluid mechanics
- Geomaterials
- Geotechnical engineering
- Hydrologic engineering
- Laboratory tests
- Materials engineering
- Motion (dynamics)
- Ocean currents
- Ocean waves
- Particle size distribution
- Particles
- Pollutants
- Solid mechanics
- Solid wastes
- Structural engineering
- Structures (by type)
- Tests (by type)
- Wastes
- Water and water resources
- Water waves
- Waves (fluid mechanics)
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