Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
Online ISSN : 2185-4653
ISSN-L : 2185-4653
JSCE Journal of Earthquake Engineering, Vol.33 (Paper)
CONTINUOUS GROUND MOTION-TSUNAMI DAMAGE SIMULATION OF A RIVER DYKE DUE TO THE 2011 TOHOKU EARTHQUAKE
Yoshiya HATARyusuke TANIMOTOKen-ichi TOKIDAItsuro TATEKAWA
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2014 Volume 70 Issue 4 Pages I_369-I_383

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Abstract

 A continuous earthquake-tsunami response analysis was conducted in order to simulate process of damage to Shin Kitakami River Dyke, Ishinomaki City, Miyagi Prefecture, during the 2011 off the Pacific coast of Tohoku Earthquake. First, earthquake response analyses were carried out using the main shock ground motion at the site estimated from microtremor H/V spectra. Based on the residual deformation condition, tsunami response analyses were then conducted assuming the seismic damage remained. The result of the continuous analysis coincides with the actual damage to the river dyke. The importance of seismic assessment of river dyke as a procedure against tsunami disaster was specified.

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© 2014 by Japan Society of Civil Engineers
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