Simulation of strong motions and surface rupture of the 2014 northern nagano earthquake

N. Iwata, R. Kiyota, K. Adachi, Y. Takahashi, Aydan, F. Miura, T. Ito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As the 1999 Chi-chi earthquake and the 1999 Kocaeli earthquake damaged many important structures due to surface rupture as well as strong motions, displacement and inclination of ground surface have become the significant issues in engineering. Most analytical methods do not evaluate displacement and strong motions at the same time. In this study, the authors conducted fault rupture simulation using three dimensional finite element method (3D-FEM) for the 2014 Northern Nagano Earthquake caused by the Kamishiro Fault, and confirmed the applicability of numerical method and conditions, such as spring stiffness of joint elements, FEM mesh size of a fault plane and the constitutive relation during stress drop, by comparing results with the observed ground motions and displacement. The computational results confirmed that the displacement and strong motion can be evaluated simultaneously using appropriate constitutive parameters and fine FEM mesh with a size less than 150 m.

Original languageEnglish
Title of host publicationRock Dynamics – Experiments, Theories and Applications - Proceedings of the 3rd International Conference on Rock Dynamics and Applications, ROCDYN-3 2018
EditorsXing Li, Charlie C. Li, Zong-Xian Zhang
PublisherCRC Press/Balkema
Pages541-547
Number of pages7
ISBN (Print)9780815396673
Publication statusPublished - 2018
Event3rd International Conference on Rock Dynamics and Applications, ROCDYN-3 2018 - Trondheim, Norway
Duration: 2017 Jun 262017 Jun 27

Publication series

NameRock Dynamics – Experiments, Theories and Applications - Proceedings of the 3rd International Conference on Rock Dynamics and Applications, ROCDYN-3 2018

Conference

Conference3rd International Conference on Rock Dynamics and Applications, ROCDYN-3 2018
Country/TerritoryNorway
CityTrondheim
Period17/6/2617/6/27

ASJC Scopus subject areas

  • Geology

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