Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Masahide Otsubo"'
Publikováno v:
Soils and Foundations, Vol 64, Iss 4, Pp 101478- (2024)
Natural volcanic soils containing pumice particles are commonly found in Hokkaido, Japan, and this type of soil is prone to landslides, internal erosion, and liquefaction. Therefore, the purpose of this paper is to summarise the hydro-mechanical resp
Externí odkaz:
https://doaj.org/article/7dc7a157dbc04268a2d7dd123b6fd042
Publikováno v:
Soils and Foundations, Vol 64, Iss 3, Pp 101465- (2024)
Volcanic pumice, with special characteristics such as crushable particles and high water retention, is distributed throughout Japan and serves as the source layer for slope hazards characterised by post-failure gentle slope flows and long-distance fl
Externí odkaz:
https://doaj.org/article/6d1c21c4e8d04d15a077442857facff8
Publikováno v:
Soils and Foundations, Vol 64, Iss 2, Pp 101443- (2024)
This contribution investigates the characteristics of elastic wave velocities (Vp and Vs) during triaxial shearing tests under dry and drained conditions. Samples of tested materials with different particle morphologies (i.e., particle shape and surf
Externí odkaz:
https://doaj.org/article/ca78802a67a84b17a9b790e2191dad0d
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 10, Pp 2687-2700 (2023)
It is essential to assess the evolution of soil fabric as it has an important role in the mechanical responses of soils during complex loading conditions. This contribution carries out the physical experiments using three granular materials in the la
Externí odkaz:
https://doaj.org/article/931b1b0ab7044eb89fff7c80cefd29fd
Publikováno v:
Soils and Foundations, Vol 63, Iss 5, Pp 101363- (2023)
Internal erosion is the transportation of soil particles from within or beneath geotechnical structures, caused by seepage flow, that impacts the subsequent mechanical and hydraulic behaviour of the soil. However, it is difficult to predict the lique
Externí odkaz:
https://doaj.org/article/5f625c7cf4484c28b889742d82b212fc
Autor:
Hidetaka Saomoto, Naotaka Kikkawa, Shuji Moriguchi, Yukio Nakata, Masahide Otsubo, Vasileios Angelidakis, Yi Pik Cheng, Kevin Chew, Gabriele Chiaro, Jérôme Duriez, Sacha Duverger, Joaquín Irazábal González, Mingjing Jiang, Yohei Karasaki, Akiko Kono, Xintong Li, Zhuyuan Lin, Asen Liu, Sadegh Nadimi, Hitoshi Nakase, Daisuke Nishiura, Utsa Rashique, Hiroyuki Shimizu, Kumpei Tsuji, Takashi Watanabe, Xiaomin Xu, Mourad Zeghal
Publikováno v:
Soils and Foundations, Vol 63, Iss 1, Pp 101272- (2023)
The round robin test (the simultaneous analysis of the same problem) is a method to investigate the variance and sensitivity of results provided by different analysts for a given problem and the reliability of the particular software used by each gro
Externí odkaz:
https://doaj.org/article/449b150f81d34d98b16b9aa4dfbdbfbf
Publikováno v:
Soils and Foundations, Vol 62, Iss 6, Pp 101224- (2022)
Internal erosion is a major threat to hydraulic earth structures, such as river levees and dams. This paper focuses on suffusion and suffosion phenomena which are caused by the movement of fine particles in the granular skeleton due to seepage flow.
Externí odkaz:
https://doaj.org/article/ccd319e5fab44dceb5c6610b0f3a52c1
Autor:
Masahide Otsubo, Sanjei Chitravel, Reiko Kuwano, Kevin J. Hanley, Hiroyuki Kyokawa, Junichi Koseki
Publikováno v:
Soils and Foundations, Vol 62, Iss 5, Pp 101202- (2022)
The liquefaction phenomena of sands have been studied by many researchers to date. Laboratory element tests have revealed key factors that govern liquefaction phenomena, such as relative density, particle size distribution, and grain shape. However,
Externí odkaz:
https://doaj.org/article/a54122b42b044ea984440fea8ba3ed81
Publikováno v:
Soils and Foundations, Vol 62, Iss 2, Pp 101111- (2022)
Internal erosion is the transportation of soil particles from within or beneath the main structure inside the ground due to seepage flow. Internal erosion impacts the mechanical and hydraulic behaviour of soil. The present study investigates the impa
Externí odkaz:
https://doaj.org/article/786e7ad3d0214d00947f3fee6b083759
Publikováno v:
Soils and Foundations, Vol 62, Iss 1, Pp 101092- (2022)
The dynamic response of gap-graded soils is complex; it requires massive experimental and theoretical investigation in order for a sound understanding to be developed. The complexity of the behaviour of such soils arises partially due to the presence
Externí odkaz:
https://doaj.org/article/4a2e34511c8e41e48b1b8e3a0177f876