Particle crushing and critical state of volcanic pumice – 2018 Hokkaido Eastern Iburi Earthquake

Sato, Itsuki; Kuwano, Reiko; Otsubo, Masahide

doi:10.1016/j.sandf.2024.101465

Soils and Foundations

2024

DOI: 10.1016/j.sandf.2024.101465

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Particle crushing and critical state of volcanic pumice – 2018 Hokkaido Eastern Iburi Earthquake

Itsuki Sato,

Reiko Kuwano,

Masahide Otsubo

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2024

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Cited by 1 publication

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Understanding the Geotechnical Behaviour of Pumiceous Soil: A Review

Elankumaran,

de Graaf,

Orense

2024

Geotechnics

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Pumiceous deposits, commonly found in volcanic regions such as the Ring of Fire and the Alpide Belt, pose significant engineering challenges due to the presence of highly crushable and compressible grains in their matrix. These deposits exhibit complex geotechnical characteristics and are frequently linked to natural events like landslides and earthquakes. Research in countries such as New Zealand, Japan, Indonesia, Italy, and Central and South America aims to better understand the mechanical behaviour of these materials. Key influencing factors include geological properties, microstructure, shearing characteristics, and the impact of particle breakage. Comparative studies have identified similarities in specific gravity, void ratio, particle size distribution, and shearing mechanisms across regions. However, notable differences appear when compared to hard-grained sands including higher void ratios, variations in relative density due to crushable grains, and increased angularity. Some responses of pumiceous deposits, such as strain softening, liquefaction resistance depending on gradation, and apparent cohesion from grain interlocking, mirror those of hard sands; however, particle crushing plays a crucial role in the behaviour. Accurate numerical modelling, which simulates crushing under different conditions, is essential for characterising pumiceous deposits in situ, providing engineers with a better understanding of these materials across diverse site conditions.

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Understanding the Geotechnical Behaviour of Pumiceous Soil: A Review

Elankumaran,

de Graaf,

Orense

2024

Geotechnics

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Particle crushing and critical state of volcanic pumice – 2018 Hokkaido Eastern Iburi Earthquake

Cited by 1 publication

References 51 publications

Understanding the Geotechnical Behaviour of Pumiceous Soil: A Review

Understanding the Geotechnical Behaviour of Pumiceous Soil: A Review

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