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A Study on the Effect of Repeated Softening of Mashiki Cohesive Soil on Ground Deformation
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- KURAMOTO Kohei
- Kyushu University
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- KAJITA Yukihide
- Kyushu University
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- MAZDA Taiji
- Kyushu University
Bibliographic Information
- Other Title
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- 益城粘性土の繰り返し軟化が地盤変状に与える影響に関する一考察
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Description
<p>The 2016 Kumamoto earthquake caused damage to the Soryo Bridge, where the middle pier settled approximately 30 cm with respect to the left bank abutment. The authors have previously analyzed this damage by considering only liquefaction of sandy soil. In this study, the authors reexamined the damage caused by the settlement of the middle pier using a two-dimensional effective stress analysis, taking into account softening due to the repetitive action of volcanic cohesive soil derived from Mt. Aso. As a result, it was confirmed that the degree of settlement of the middle pier increased when the repetitive softening of clay was taken into account, and that the possibility of re-liquefaction of sandy soil due to earthquake motion occurring at short time intervals was high.</p>
Journal
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- Journal of Japan Association for Earthquake Engineering
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Journal of Japan Association for Earthquake Engineering 25 (4), 4_1-4_11, 2025
JAPAN ASSOCIATION FOR EARTHQUAKE ENGINEERING
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Details 詳細情報について
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- CRID
- 1390584973377338752
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- ISSN
- 18846246
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed