Seismic shear behavior of clayey volcanic soil in residential area damaged by the 2016 kumamoto earthquakes in japan

S. Izumiya, A. Kamura, M. Kazama, J. Kim, S. Sato

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

Abstract

Sandy volcanic soils, including pumice, are vulnerable to earthquakes. On the contrary, clayey soil does not liquefy and is stronger than sandy soil. However, during the 2016 Kumamoto earthquake, a large ground deformation occurred in the residential area of Mashiki Town wherein clayey volcanic soil was deposited. We studied the seismic shear behavior of this clayey volcanic soil using a torsional cyclic shear test with a random shear stress history corresponding to actual seismic records. In our test, we also studied the effects of a series of seismic motion histories and the initial shear stress because most damage occurred on the slope area. As a result, in the case with initial shear stress owing to the slope, a larger residual strain developed compared to the case without an initial shear stress.

Original languageEnglish
Title of host publicationEarthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019
EditorsFrancesco Silvestri, Nicola Moraci
PublisherCRC Press/Balkema
Pages3094-3101
Number of pages8
ISBN (Print)9780367143282
Publication statusPublished - 2019 Jan 1
Event7th International Conference on Earthquake Geotechnical Engineering, ICEGE 2019 - Rome, Italy
Duration: 2019 Jan 172019 Jan 20

Publication series

NameEarthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019

Conference

Conference7th International Conference on Earthquake Geotechnical Engineering, ICEGE 2019
CountryItaly
CityRome
Period19/1/1719/1/20

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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  • Cite this

    Izumiya, S., Kamura, A., Kazama, M., Kim, J., & Sato, S. (2019). Seismic shear behavior of clayey volcanic soil in residential area damaged by the 2016 kumamoto earthquakes in japan. In F. Silvestri, & N. Moraci (Eds.), Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019 (pp. 3094-3101). (Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019). CRC Press/Balkema.