Experimental study of dam-break-like tsunami loads on vertical structures with overhanging horizontal slabs: Slab with air chamber

Peng, Chen; Chen, Cheng; Nandasena, N.A.K.; Deng, Xin; Cai, Feng; Guan, Dawei

doi:10.1016/j.oceaneng.2024.118999

Ocean Engineering

2024

DOI: 10.1016/j.oceaneng.2024.118999

|View full text |Cite

Experimental study of dam-break-like tsunami loads on vertical structures with overhanging horizontal slabs: Slab with air chamber

Chen Peng,

Cheng Chen,

N.A.K. Nandasena

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Air effects on solitary waves impinging and overtopping an impermeable seawall

Su,

Hu,

et al. 2024

Ocean Engineering

View full text Add to dashboard Cite

Air effects on solitary waves impinging and overtopping an impermeable seawall

Su,

Hu,

et al. 2024

Ocean Engineering

View full text Add to dashboard Cite

Experimental study of dam-break-like tsunami loads on the vertical structure with overhanging horizontal slab: Flat slab

Peng,

Chen,

Nandasena

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

Tsunamis present a significant risk to coastal infrastructure. This study conducts a comprehensive experimental investigation into the effects of tsunami impacts on a vertical structure equipped with an overhanging horizontal slab. Dam-break waves were generated in the laboratory to simulate tsunami bore. The uplift pressure of the tsunami bore on the horizontal suspended slab and the horizontal pressure on the vertical wall were analyzed by combining experimental data with water flow patterns. The results revealed that the impact process could be categorized into four stages: initial impact, run-up, quasi-steady, and recession. Two characteristic pressures were identified: a maximum pressure during the initial impact stage and a quasi-steady pressure with a longer duration. The maximum uplift pressure was found to increase with the relative position and tsunami bore height. However, this trend was influenced by the slab height and gravity, particularly on the side of the slab closest to the wall. As the slab height increased, the water flow reflection area expanded, diminishing the focusing effect caused by the slab and decreasing the quasi-steady uplift pressure. The uplift coefficient was observed to decrease with an increase in the relative slab height, and a new uplift coefficient envelope was proposed based on experimental data and published articles. Equations for the uplift pressure distribution and a novel conversion method between uplift pressure and horizontal pressure were introduced. Furthermore, based on the measured data and existing theories, equations for estimating the maximum and quasi-steady uplift pressures are presented and validated using published data. These findings provide valuable insights into understanding and estimating the impact of tsunami on structures.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Experimental study of dam-break-like tsunami loads on vertical structures with overhanging horizontal slabs: Slab with air chamber

Cited by 2 publications

References 69 publications

Air effects on solitary waves impinging and overtopping an impermeable seawall

Air effects on solitary waves impinging and overtopping an impermeable seawall

Experimental study of dam-break-like tsunami loads on the vertical structure with overhanging horizontal slab: Flat slab

Contact Info

Product

Resources

About