Experimental study of dam-break-like tsunami bore impact mechanism on a container model

• Autorzy: Chen Cheng , Chen Jun , Lin Peng , Chen Chiwei , Chen Haozhe

Identyfikatory

DOI

10.2478/pomr-2020-0006

• Języki publikacji: EN

Abstrakty

EN

Tsunami disasters have frequently occurred in recent years. More and more researchers are focusing on this topic. To investi-gate the tsunami bore impact mechanism on a container model, a multi-functional slope-changing tsunami flume is built in this study. To simulate a tsunami bore, a dam-break wave was generated by a free-falling gate in a reservoir. A needle water level gauge and a high-speed camera were used to measure the tsunami wave heights and velocities for different storage water levels in the test flume, and the corresponding Froude numbers of tsunami waves were also calculated. The factors af-fecting the movement distance of the tsunami wave impacting the container model are explored in this experiment, and the results show that the movement distance is positively correlated with the storage water level, and negatively correlated with the container density and the coast slope.

Słowa kluczowe

EN

tsunami bore; dam break; container; Froude number; movement distance; coast slope

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2020
• Tom: nr 1
• Strony: 53--59
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Chen Cheng

• Fuzhou University; Hohai University, Wulongjiang North Avenue, 350108 Fuzhou, China
• Hohai University Xikang Road, 210098 Nanjing, China

autor

Chen Jun

• The Pearl River Hydraulic Research Institute Pearl River Water Conservancy Building, No.80, Tianshou Road, 510611 Guangzhou, China

autor

Lin Peng

• Fuzhou University Wulongjiang North Avenue, 350108 Fuzhou, China

autor

Chen Chiwei

• Fuzhou University Wulongjiang North Avenue, 350108 Fuzhou, China

autor

Chen Haozhe

• Hohai University Xikang Road, 210098 Nanjing, China

Bibliografia

• 1. Nandasena N., Sasaki Y., Tanaka N. (2012): Modeling field observations of the 2011 Great East Japan tsunami: Efficacy of artificial and natural structures on tsunami mitigation. Coastal Engineering, 67, 1–13.
• 2. Ghobarah A., Saatcioglu M., Nistor I. (2006): The impact of the 26 December 2004 earthquake and tsunami on structures and infrastructure. Engineering Structures, 28(2), 312–326.
• 3. Chen C., Melville B., Nandasena N. A. K., Farvizi F. (2018): An experimental investigation of tsunami bore impacts on a coastal bridge model with different contraction ratios. Journal of Coastal Research, 34(2), 460–469.
• 4. Chanson H. (2006): Tsunami surges on dry coastal plains: Application of dam break wave equations. Coastal Engineering Journal, 48(4), 355–370.
• 5. Imamura F., Goto K., Ohkubo S. (2008): A numerical model for the transport of a boulder by tsunami. Journal of Geophysical Research: Oceans, 113(C01008), 1–12.
• 6. Saatcioglu M., Ghobarah A., Nistor I. (2005): Effects of the December 26, 2004 Sumatra earthquake and tsunami on physical infrastructure. ISET Journal of Earthquake Technology, 42(4), 79–94.
• 7. Shafiei S., Melville B. W., Shamseldin A. Y., Adams K. N., Beskhyroun A. S. (2016): Experimental investigation of tsunami-borne debris impact force on structures: Factors affecting impulse-momentum formula. Ocean Engineering, 127, 158–169.
• 8. Robertson I., Riggs H., Mohamed A. (2008): Experimental results of tsunami bore forces on structures. International Offshore Mechanics and Arctic Engineering Conference, 2008.
• 9. Chock G. Y. K., Robertson I., Riggs H. R. (2013): Tsunami structural design provisions for a new update of building codes and performance-based engineering. Solutions to Coastal Disasters, 2013, 423–435.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).