Výsledky vyhledávání - "Ishikura Ryohei"

Akademický článek

Influence of time on the small strain shear modulus of an allophanic volcanic ash

Autor: Gobin Mukteshwar, Yasufuku Noriyuki, Watanabe Midori, Liu Guojun, Ishikura Ryohei

Publikováno v: E3S Web of Conferences, Vol 544, p 01005 (2024)

The small strain shear modulus is an important parameter in the assessment of soil dynamics problems. Studies on the small strain shear stiffness of volcanic ash remain rare probably because globally they cover just under 1% of the land surface. Howe

Externí odkaz: https://doaj.org/article/3fd29e244b2b4565a159450a12ac6473

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Akademický článek

Drying Front and Vaporization Plane Dynamics during Evaporation from Homogeneous Soil Profiles

Autor: Hussary Jumana, Alowaisy Adel, Yasufuku Noriyuki, Ishikura Ryohei, Abdelhadi Monther

Publikováno v: E3S Web of Conferences, Vol 382, p 21003 (2023)

Global warming has caused many lands to degrade, making them vulnerable to desertification. Therefore, finding innovative solutions is essential to prevent such phenomena from exacerbating. However, this requires a comprehensive understanding of the

Externí odkaz: https://doaj.org/article/2eba83ac2b444bf7a590831d3e297a20

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Akademický článek

Effect of soil structure disturbance on the shear strength of black volcanic ash soil

Autor: Asfino Putra Okri, Yasufuku Noriyuki, Ishikura Ryohei, Rifa’i Ahmad, Alowaisy Adel, Kawaguchi Yuko

Publikováno v: E3S Web of Conferences, Vol 156, p 02004 (2020)

The effect of soil disturbance on the shear strength of black volcanic ash soil was investigated using a constant volume direct shear apparatus. Disturbance of soil structure was considered as the pore size distribution which obtained from the soil-w

Externí odkaz: https://doaj.org/article/fbc2f2c7d7f84022b2223663e4f9a992

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Akademický článek

Novel rapid measurement system of undisturbed soils water characteristics curve utilizing the continuous pressurization method

Autor: Alowaisy Adel, Yasufuku Noriyuki, Ishikura Ryohei, Hatakeyama Masanori, Kyono Shuu

Publikováno v: E3S Web of Conferences, Vol 92, p 07008 (2019)

Through this paper, a sampling methodology and a novel full automatic system adopting the continuous pressurization method which is capable of determining the Soil Water Characteristics Curve (SWCC) for both remoulded and undisturbed samples in a ver

Externí odkaz: https://doaj.org/article/4780d724a7734989b0d57f723cc1f54a

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Akademický článek

Mechanical behaviour of unsaturated undisturbed black volcanic ash soil under static and cyclic loading

Autor: Asfino Putra Okri, Yasufuku Noriyuki, Ishikura Ryohei, Alowaisy Adel, Kawaguchi Yuko

Publikováno v: E3S Web of Conferences, Vol 92, p 07004 (2019)

The mechanical behaviour of unsaturated undisturbed black volcanic ash soils was investigated using a constant volume direct shear apparatus. A series of static and cyclic tests were conducted under unsaturated and saturated samples. The cyclic test

Externí odkaz: https://doaj.org/article/52ae48cd09814e7abe1ef6522ebdaba4

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Akademický článek

Correlation between shear wave velocity and effective confining pressure using cyclic triaxial testing apparatus

Autor: Liu Guojun, Yasufuku Noriyuki, Ishikura Ryohei, Liu Qiang

Publikováno v: E3S Web of Conferences, Vol 92, p 04009 (2019)

The 2016 Kumamoto earthquakes struck Kumamoto and Ōita regions and caused several devastating liquefaction induced damages. The primary damage was due to the extreme ground shaking of the foreshock and main shock sequence. Therefore, it is essential

Externí odkaz: https://doaj.org/article/301e901a19a44e70bcf52c91d19d6bc5

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