A Study of Damage Mechanism on Port Facilities at Onagawa Fishery Port due to Tohoku Earthquake Tsunami

Yagi, Hiroshi; Sugimatsu, Koichi; Nakayama, A.; Nishi, Toshiya; Okuno, Masahiro; Koike, Tatsuki; Hayashi, Kentaro; Igarashi, Yuusuke

doi:10.2208/kaigan.68.i_1346

Cited by 3 publications

(3 citation statements)

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“…The Onagawa town was one of the affected areas that suffered tremendous damage during the tsunami [40][41][42][43][44][45]. The tsunami hazards and damages in this area have been investigated numerically by some researchers using some methods to be available for inundation simulation in urban area [5,6,9,23,24], providing useful data for comparing various methods.…”

Section: Investigation Of Characteristics Of Tsunami Hazards Simulatementioning

confidence: 99%

“…The tsunami hazards and damages in this area have been investigated numerically by some researchers using some methods to be available for inundation simulation in urban area [5,6,9,23,24], providing useful data for comparing various methods. However, complex and various phenomena in this area-e.g., destruction of houses/buildings and breakwaters [42][43][44][45], and morphological change [44]-are not included in these models nor in the proposed model. Tsunami hazards might be affected by various phenomena, e.g., destruction of breakwaters [23] and houses/buildings [46,47], floating debris [47][48][49] or morphological change due to tsunami-induced sediment transport [50][51][52][53], although understanding of the mechanism and the influence is limited.…”

Section: Investigation Of Characteristics Of Tsunami Hazards Simulatementioning

confidence: 99%

“…Six concrete structures were damaged (i.e., toppled and destroyed) [24,42,43,45]. Furthermore, the breakwater in the mouth of Onagawa Bay was greatly damaged, and the seabed around the opening was eroded by as much as 9 m [44]. This characteristic damage constituted enormous devastation.…”

Section: Background Of the Target Domainmentioning

confidence: 99%

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Development of a Tsunami Inundation Analysis Model for Urban Areas Using a Porous Body Model

et al. 2018

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Abstract:To evaluate tsunami hazards with strong locality in urban areas, this study developed a novel tsunami inundation model based on nonlinear shallow water wave equations and a porous body model (PBM). By applying a kinematic boundary condition that includes both porosity and surface permeability of the porous medium, the proposed model could accurately incorporate geometric effects such as the flow anisotropy caused by the distributions of buildings. The proposed PBM demonstrated as good accuracy for the inundation heights around buildings near the coastline as with a conventional three-dimensional simulation with high resolution. In addition, the model showed its capability to reproduce a tsunami's essential behaviors in urban areas. In particular, the amplification effect of flow velocity along straight roads surrounded by buildings was reasonably reproduced. It can be expected that the present model can become a useful tool to accurately evaluate the tsunami risks in urban areas.

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Section: Investigation Of Characteristics Of Tsunami Hazards Simulatementioning

confidence: 99%

Section: Investigation Of Characteristics Of Tsunami Hazards Simulatementioning

confidence: 99%

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Development of a Tsunami Inundation Analysis Model for Urban Areas Using a Porous Body Model

et al. 2018

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Clarification of Damage Mechanism on the Seawalls at Yamada Fishing Port in Iwate Prefecture, Affected by the 2011 Off the Pacific Coast of Tohoku Earthquake Tsunami

Shoji¹,

Mizuno²,

Takahashi³

et al. 2015

J. JSCE, Ser. A1

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Estimation on Tsunami Wave Height Threshold for Ship-mooring based on Surveys upon Observed Tsunami Data and Ship Status inside Ports during the 2011 Tohoku Earthquake Tsunami

Sakakibara¹,

Abe²,

Kubo³

et al. 2017

The Journal of Japan Institute of Navigation

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After the 2011 Great east Japan earthquake disaster, many reports on the tsunami profile at ports and disaster surveys on vessels moored in ports along the Pacific Ocean have been published. We also conducted surveys on the sea disasters of several large vessels such as crude oil and coal carriers by reproducing the moored vessel's behavior through a numerical simulation method on ship motions and tsunami. In a judgement of ship refuge action from ports, it is important for ship onboard and fleet management to grasp tsunami information after huge earthquake. In this paper, we have tried to find out a threshold of tsunami wave height for ship-mooring based on surveys on the observed tsunami data and the ship status in the ports during the 2011 Tohoku earthquake tsunami.

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A Study of Damage Mechanism on Port Facilities at Onagawa Fishery Port due to Tohoku Earthquake Tsunami

Cited by 3 publications

References 1 publication

Development of a Tsunami Inundation Analysis Model for Urban Areas Using a Porous Body Model

Development of a Tsunami Inundation Analysis Model for Urban Areas Using a Porous Body Model

Clarification of Damage Mechanism on the Seawalls at Yamada Fishing Port in Iwate Prefecture, Affected by the 2011 Off the Pacific Coast of Tohoku Earthquake Tsunami

Estimation on Tsunami Wave Height Threshold for Ship-mooring based on Surveys upon Observed Tsunami Data and Ship Status inside Ports during the 2011 Tohoku Earthquake Tsunami

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