scholarly journals One Consideration to Tsunami Effect and Tsunami Wave Force of Two Neighboring Moored Large Coal Carriers during the 2011 Tohoku Earthquake Tsunami Disaster

2016 ◽  
Vol 134 (0) ◽  
pp. 8-18 ◽  
Author(s):  
Shigeki SAKAKIBARA ◽  
Ikuo ABE ◽  
Masayoshi KUBO ◽  
Masanori TSUGANE
Keyword(s):  
Tsunami Wave ◽  
Tohoku Earthquake ◽  
Wave Force ◽  
2011 Tohoku Earthquake ◽  
The 2011 Tohoku Earthquake ◽  
Tsunami Disaster

scholarly journals A DESIGN METHOD OF THE SEA WALL AND WATER APRON BY THE TSUNAMI

2018 ◽  
pp. 24
Author(s):  
Hiroyuki Katou ◽  
Hiroyuki Iwase ◽  
Hideo Matsutomi
Keyword(s):  
Hydrostatic Pressure ◽  
Tsunami Wave ◽  
Design Method ◽  
Tohoku Earthquake ◽  
Wave Force ◽  
2011 Tohoku Earthquake ◽  
The 2011 Tohoku Earthquake ◽  
Coastal Conservation ◽  
Sea Wall ◽  
Acting Force

Many of the coastal conservation facilities of the fishing port were severely damaged by the wave force of the 2011 Tohoku earthquake tsunami. We evaluated the tsunami wave force by conventional hydrostatic pressure for the sea wall of the fishing port. In addition, we considered the acting force and the acting range for the water apron of the sea wall during tsunami over flow, and presented a reasonable design of the sea wall. The tsunami wave force for the sea wall is not sufficiently examine by the seabed gradient, the position of structure and the back slope of the sea wall.

scholarly journals RELATIONSHIPS BETWEEN FLUID MOTION AND PRESSURE VARIATION BY DAM-BREAK FLOWS COLLIDING WITH VERTICAL WALL

2018 ◽  
pp. 10
Author(s):  
Natsuki Mizutani ◽  
Jinji Umeda
Keyword(s):  
Tsunami Wave ◽  
Vertical Wall ◽  
Fluid Motion ◽  
Tohoku Earthquake ◽  
Wave Force ◽  
Pressure Variation ◽  
Dam Break ◽  
The 2011 Tohoku Earthquake ◽  
Dam Break Flow ◽  
Hazard Area

The 2011 Tohoku Earthquake Tsunami ran up the height of over 40 m and covered over 560 km2 of the coastal land area in Tohoku, Japan. The tsunami destroyed many structures and killed over 15,000 people. Appropriate measures should be taken against the next giant tsunami to avoid such tragedy. The generation mechanism of wave force is uncertain when a tsunami wave running on land collides with a structure. Especially, the fluid motion of a tip of tsunami wave immediately after the collision with a structure is very complicated. The information of the pressure distribution acting on the structure is necessary to construct buildings in the coastal hazard area. The purpose of this study is to clarify the relationships between the fluid motion and pressure variation by a dam-break flow as a tsunami flow on a dry bed colliding with structures.

scholarly journals The impact of the 2011 Tohoku earthquake tsunami disaster and implications to the reconstruction

2014 ◽  
Vol 54 (4) ◽  
pp. 560-572 ◽  
Author(s):  
Shunichi Koshimura ◽  
Satomi Hayashi ◽  
Hideomi Gokon
Keyword(s):  
Tohoku Earthquake ◽  
2011 Tohoku Earthquake ◽  
The 2011 Tohoku Earthquake ◽  
Tsunami Disaster ◽  
The Impact

Damage Related to the 2011 Tohoku Earthquake in and Around Kamaishi City – Beyond the Tsunami Disaster –

2019 ◽  
Vol 14 (9) ◽  
pp. 1185-1200
Author(s):  
Tsuneo Ohsumi ◽  
Yuji Dohi ◽  
Hemanta Hazarika ◽  
◽  
Keyword(s):  
Coastal Area ◽  
Tohoku Earthquake ◽  
2011 Tohoku Earthquake ◽  
The South ◽  
The 2011 Tohoku Earthquake ◽  
Tsunami Disaster ◽  
South Central ◽  
The Pacific ◽  
Iwate Prefecture ◽  
Eastern Japan

Widespread damage was caused in eastern Japan as a result of the earthquake and tsunami which occurred in 2011 off the Pacific coast of Tohoku (hereinafter, the 2011 Tohoku Earthquake). A large tsunami struck the coastal area of eastern Japan and caused damage to buildings, breakwaters, tide embankments and river levees. The joint reconnaissance team of the Tohoku and Kyushu branches of the Japanese Geotechnical Society investigated the geotechnical damage in the south-central coastal area of Iwate Prefecture from the beginning of April to September 2011. This report summarizes the geotechnical hazards and the damage to port structures, roads, railways, river levees, and buildings caused by the earthquake motion and tsunami in the 2011 Tohoku Earthquake in the south-central coastal area of Iwate Prefecture. Major investigation areas are Kamaishi City (Koshirahama Port, Touni-Chou), the coastal area of Ofunato City (Sanriku-Chou Yoshihama, Sanriku-Chou Okirai), and Rikuzentakata City. In the 2011 Tohoku Earthquake, many people could not or did not evacuate from the tsunami. However, students at junior high and elementary schools started tsunami evacuation quickly, resulting in what is known as the “Kamaishi Miracle.” This study focused on the tsunami evacuation of children in Unosumai district, Kamaishi City.

scholarly journals Hard and soft measures for earthquake and tsunami disaster mitigation

2021 ◽  
Vol 331 ◽  
pp. 07011
Author(s):  
Junji Kiyono
Keyword(s):  
Causes Of Death ◽  
Tohoku Earthquake ◽  
2011 Tohoku Earthquake ◽  
Disaster Mitigation ◽  
Interplate Earthquake ◽  
The 2011 Tohoku Earthquake ◽  
Time To Death ◽  
Tsunami Disaster ◽  
Kobe Earthquake ◽  
Eastern Japan

A destructive earthquake struck the Kobe region on January 17, 1995, and a massive earthquake and tsunami struck eastern Japan on March 11, 2011. We present an overview of the casualty aspects of the 2011 Tohoku earthquake compared with those of the 1995 Kobe earthquake. In the Tohoku disaster, some water gates and seawalls saved some villages from the tsunami effects, though some did not. Based on these examples, we discuss the efficiency of soft and hard measures and consider their respective merits and demerits. The main causes of death in the Kobe and Tohoku EQs were, respectively, collapsing buildings and drowning in the tsunami. Although the time to death was very short in both cases, people often have more time to evacuate in the case of an interplate earthquake leading to a tsunami. Basic countermeasures against tsunamis include such hard measures as water gates, seawalls, and embankments. Soft measures need to be implemented in areas where hard measures are insufficient

Modeling Features of Both the Rupture Process and the Local Tsunami Wave Field from the 2011 Tohoku Earthquake

2017 ◽  
Vol 174 (10) ◽  
pp. 3919-3938 ◽  
Author(s):  
L. Lobkovsky ◽  
I. Garagash ◽  
B. Baranov ◽  
R. Mazova ◽  
N. Baranova
Keyword(s):  
Wave Field ◽  
Tsunami Wave ◽  
Tohoku Earthquake ◽  
Rupture Process ◽  
2011 Tohoku Earthquake ◽  
The 2011 Tohoku Earthquake
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