Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Yoichi Yamamoto.
Journal of Geotechnical and Geoenvironmental Engineering | 2009
Yoichi Yamamoto; Masayuki Hyodo; Rolando P. Orense
In order to simulate the effect of drainage on soils adjacent to gravel drains that are installed as countermeasure against liquefaction, several series of cyclic triaxial tests were performed on saturated sands under partially drained conditions. The condition of partial drainage under cyclic loading was simulated in the laboratory using triaxial testing equipment installed with a drainage control valve to precisely regulate the volume of water being drained from test specimens. Effects of both drainage conditions and loading frequencies on cyclic response were incorporated through the coefficient of drainage effect, α* . Experimental results showed that for sand exhibiting strain softening, the partially drained response was controlled by the critical effective stress ratio while for sand showing strain hardening behavior, the controlling factor was the phase transformation stress ratio. Moreover, test results indicated that the minimum liquefaction resistance under partially drained conditions can be u...
Soils and Foundations | 1994
Masayuki Hyodo; Yoichi Yamamoto; Motohiro Sugiyama
Soils and Foundations | 1999
Masayuki Hyodo; Adrian F. L. Hyde; Yoichi Yamamoto; Teruhisa Fujii
Journal of Geotechnical and Geoenvironmental Engineering | 2006
Naoki Takahashi; Masayuki Hyodo; Adrian F. L. Hyde; Yoichi Yamamoto; Shinya Kimura
Doboku Gakkai Ronbunshu | 2002
Norimasa Yoshimoto; Masayuki Hyodo; Teruhisa Fujii; Yoichi Yamamoto; Shusaku Ito
Doboku Gakkai Ronbunshu | 2001
Shusaku Ito; Masayuki Hyodo; Teruhisa Fujii; Yoichi Yamamoto; Toshikazu Taniguchi
Doboku Gakkai Ronbunshuu C | 2006
Naoki Takahashi; Takahiro Kishishita; Yoichi Yamamoto; Masayuki Hyodo; Fusanori Miura; Norimasa Yoshimoto
Doboku Gakkai Ronbunshu | 2004
Naoki Takahashi; Masayuki Hyodo; Norimasa Yoshimoto; Yoichi Yamamoto
Doboku Gakkai Ronbunshu | 2001
Yoichi Yamamoto; Masayuki Hyodo; Seiji Uehara; Naoki Takahashi
Doboku Gakkai Ronbunshu | 2001
Teruhisa Fujii; Masayuki Hyodo; Yoichi Yamamoto; Shusaku Ito