Tsunami Force Acting on Oil Tanks and Buckling Analysis for Tsunami Pressure
Tsutomu Sakakiyama, Shinichi Matsuura, and Masafumi Matsuyama
Central Research Institute of Electric Power Industry 1646 Abiko, Abiko-city, Chiba 270-1194, Japan
Experiments on the tsunami force and pressure acting on oil tanks. The tsunami concerned in the present paper is that is expected to be generated by future Tokai and Tonankai earthquakes. The maximum water level of about 5 m is estimated at a certain power plant site. Two types of experiment were carried out: Measurements of the tsunami force acting on a single tank as a fundamental test and these on tanks in a tank complex as a practical problem. The effect of the free surface on the drag coefficient was discussed. If the tanks of which diameter ranges from 5.8 m to 48.6 m and weight ranges from 5.8 t to 540 t are empty, they can be floated due to in case of 2-m-high flooding. The tsunami pressure acting on tanks surrounded by oil protection walls is not uniform and the buckling of the side wall is very sensitive to the distribution of pressure around the tank. The lowest level of oil in the tank should be kept higher than the estimated inundation depth to prevent the tanks from floating and buckling.
-  Y. Goto, “Reconnaissance on Off-Sumatra Earthquake — Indian Ocean Tsunami Disaster of December 26, 2004 Damage to Oil Storage Facilities of Cement Factory at Lho’nga and Petroleum Delivery Terminal at Krueng Raya in Aceh Province, Sumatra, Indonesia,” National Research Institute for Earth Science and Disaster Prevention Earthquake Disaster Mitigation Research Center, 27p, 2005.
-  Central Disaster Prevention Council, 2001
(referred on 2009/09/07).
-  S. Akiyama, T. Ikeya, M. Ohmori, and N. Fuji, “Characteristics of flow around the oil tank acted by tsunami,” Annual Journal of Civil Engineering in the Ocean, JSCE, Vol.21, pp. 157-162, 2005 (in Japanese).
-  N. Fuji, M. Ohmori, T. Ikeya, and S. Inagaki, “Tsunami wave force acting oil storage tanks and prediction method of the damage,” Annual Journal of Coastal Engineering, JSCE, Vol.53, pp. 271-275, 2006 (in Japanese).
-  M. Chiba, T. Yamashida, and M. Yamauchi, “Buckling of circular cylindrical shells partially subjected to external liquid pressure,” Thin-Walled Structures, Vol.8, pp. 217-333, 1989.
-  A. Roshko, “Experiments in the flow past a circular cylinder at very high Reynolds number,” Journal of Fluid Mechanics, Vol.10, No.3, pp. 345-356, 1961.
-  J. R. Chaplin and P. Teigen, “Steady flow past a vertical surface-piercing circular cylinder,” Journal of Fluids and Structures, pp. 271-285, 2003.
-  ABAQUS, Inc., “ABAQUS/Standard Version 6.5 User’s Manual and Example Problems Manual,” 2005.
This article is published under a Creative Commons Attribution-NoDerivatives 4.0 International License.