Abstract
The 2016 Kumamoto earthquakes induced soil liquefaction in vast areas, owing to the special geological conditions near the Aso Volcano. The soil liquefaction resulted in significant damage to the foundations of residential buildings, infrastructure, and landslides. Several investigations indicated the disaster was greatly expended, including the affected areas, and severity after the second shock. The objective of this study is to clarify the liquefaction characteristics of the local soils under two great shocks within the earthquakes. Therefore, the volcanic soil, and the soil from the sand boil site, selected as the two typical materials, were tested by a tri-axial compression test system. The re-liquefaction performances were investigated and analyzed in this study. The results indicated that the natural volcanic soil in the local was considered as an un-liquefiable soil. The soils from the sand boil site presented a liquefiable feature, similar to fine sand in the tests. Furthermore, the fine particles played a dominant role in liquefaction characteristics, in both the soils from the sand boil site and the volcanic soil.
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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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Liu, G., Yasufuku, N., Ishikura, R., Liu, Q. (2023). Characteristics of Re-liquefaction Behaviors of the Typical Soils in the Aso Area of Kumamoto, Japan. In: Hazarika, H., et al. Sustainable Geo-Technologies for Climate Change Adaptation. Springer Transactions in Civil and Environmental Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-4074-3_9
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DOI: https://doi.org/10.1007/978-981-19-4074-3_9
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