Analysis of coastal structure damaged by the 2011 off the Pacific Coast of Tohoku Earthquake-Field investigation and numerical simulation-Field i

Tsuneo Ohsumi, Hemanta Hazarika, Tadashi Hara, Kentaro Kuribayashi, Shuichi Kuroda, Koichiro Takezawa, Furuichi Hideo

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

Site investigations were performed on a damaged river dike, which was located in the central and southern part of Iwate prefecture. The field investigation results show that subsidence related failure probably had taken place in the dike body with low penetration resistance and high water table. Further investigations also revealed that the dike body had low liquefaction resistance and the volume change after liquefaction was rather large. Numerical investigation through two dimensional effective stress analyses show that due to main shock and aftershock, there is a likelihood of liquefaction in dike body and the re-liquefaction possibilities are high even under small ground motion.

Original languageEnglish
Pages2498-2503
Number of pages6
DOIs
Publication statusPublished - Jan 1 2015
Event15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 - Fukuoka, Kyushu, Japan
Duration: Nov 9 2015Nov 13 2015

Other

Other15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015
CountryJapan
CityFukuoka, Kyushu
Period11/9/1511/13/15

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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