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

• SHOJI Gaku

  筑波大学 システム情報系

• MIZUNO Kaito

  大林組（元筑波大学理工学群工学システム学類）

• TAKAHASHI Kazunori

  筑波大学大学院 システム情報工学研究科

• KIHARA Naoto

  (一財)電力中央研究所 地球工学研究所

• MATSUYAMA Masafumi

  (一財)電力中央研究所 地球工学研究所

Bibliographic Information

Other Title

• 東北地方太平洋沖地震津波で被災した岩手県山田漁港・防潮堤の被災メカニズムに関する一考察

Abstract

 Damage points, damage lengths and damage modes of seawalls with or without steel-type piles at Yamada fishing port in Iwate Prefecture, affected by the 2011 off the Pacific coast of Tohoku earthquake tsunami were clarified by analyzing associated Google Earth data and structure drawings of subject 187 seawall units. Dependency of the damage ratios defined as the number of damaged seawall units divided by total number of exposed seawall units by the associated inundation depths and overflow depths was revealed, with considering the failure and non-failure mechanism on sliding and turning failure modes of the 42 seawall units without steel-type piles based on computation of safety factors.

Journal

• Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

  Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 71 (4), I_167-I_178, 2015

  Japan Society of Civil Engineers

Keywords

• the 2011 off the Pacific coast of Tohoku earthquake
• seawall
• damage ratio
• inundation depth
• sliding failure
• turning failure

Details

• CRID: 1390001205350460800
• NII Article ID: 130005100213
• DOI: 10.2208/jscejseee.71.i_167
• ISSN: 21854653
• Web Site: https://www.jstage.jst.go.jp/article/jscejseee/71/4/71_I_167/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed