Isamu Hirano
Ministry of Construction
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Publication
Featured researches published by Isamu Hirano.
International Journal of Rock Mechanics and Mining Sciences | 1997
Yoshitada Mito; Kohkichi Kikuchi; Isamu Hirano; T. Sadahiro
Abstract Stochastic Block Theory is suggested as the management tool for the decision for initial support of key block before every discontinuity trace of the block has not appeared on slope surface, in other word, in the moment some of the discontinuity traces of the block have appeared. The probability of forming a removable block by the next excavation can be calculated by taking rock joint distribution into account. The applicability of the theory is examined using the joint trace maps.
Journal of The Society of Materials Science, Japan | 1998
Isamu Hirano; Takeyosi Sadahiro; Kohkichi Kikuchi; Yositada Mito; Michihiko Nishibayashi; Masahiro Baba
In order to predict the weathering process of rock foundation and rock materials for engineering purpose, fundamental studies have been carrying out to investigate the factor of weathering, changes of some properties and rock deterioration mechanism by weathering.The outdoor exposure tests on Cretaceous Granitic Rock (Kitakyusyu granite) were carried out in this study. The columnar specimens used in this experiment are composed of a series of rocks that include fresh rocks to weathered rocks. Their weathering properties were clarifed by the outdoor exposure, and the regression equations for the deterioration process were obtained as a function of outdoor exposure time. Using these equations, one can predict the weathering process from the initial physical and mechanical indices of rocks.
Journal of the Japan Society of Engineering Geology | 1991
Yasuhito Sasaki; Masahiko Abe; Isamu Hirano
Journal of The Society of Materials Science, Japan | 1999
Yoshitada Mito; Naruki Wakabayashi; Isamu Hirano; Kohkichi Kikuchi
Journal of Japan Society of Dam Engineers | 1999
Koh Mutoh; Kohkichi Kikuchi; Isamu Hirano; Yoshitada Mito
Journal of Japan Society of Dam Engineers | 1999
Koh Mutoh; Kohkichi Kikuchi; Yoshitada Mito; Tetsuya Suzuki; Isamu Hirano
ISRM International Symposium - EUROCK 96 | 1996
Yoshitada Mito; Toshiaki Saitoh; Isamu Hirano
Journal of the Japan Society of Engineering Geology | 2015
Yasuo Katoh; Hidehisa Nagata; Tamotsu Nozaki; Isamu Hirano
Archive | 2003
Sumihiko Noguchi; Isamu Hirano; Yoshitada Mito; Toshifumi Matsuoka
Journal of Japan Society of Dam Engineers | 2001
Takeyoshi Sadahiro; Isamu Hirano; Junko Koike; Yoshihisa Uehara