2023 Fiscal Year Final Research Report
Study to verify the applicability of in-situ vender element method intended for the embankment
| Project/Area Number |
21K04248
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 22030:Geotechnical engineering-related
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| Research Institution | Akita University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
荻野 俊寛 秋田大学, 理工学研究科, 准教授 (80312693)
鈴木 素之 山口大学, 大学院創成科学研究科, 教授 (00304494)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | ベンダーエレメント試験 / 堤防浸食 / 堤防決壊 / セメント改良 |
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| Outline of Final Research Achievements |
The in-situ simplified bender element method for embankment embankments was successfully demonstrated. Although only the cement-improved soil was used in the original plan, the newly developed permeable bender element test apparatus made it possible to use unimproved soil as a soil sample. In addition, the decrease trend of shear wave velocity with water permeability (change of waveform) was confirmed in a simple soil layer test, and the “change of shear wave velocity with flooding and water permeability” targeted in the planning stage was confirmed in the laboratory test.
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| Free Research Field |
地盤工学
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| Academic Significance and Societal Importance of the Research Achievements |
原位置ベンダーエレメント試験装置を設置し，我が国における堤防全域の漏水・劣化・決壊を迅速に検知することができるシステムの構築を目指して，本研究を進めた。その結果，土試料が浸水および透水する過程において，せん断波速度の計測波形形状が規則的に変化することが明らかとなった。このことは，我が国における堤防決壊被害を軽減できる技術開発に大きく貢献する可能性があり，本研究成果の社会的意義は極めて大きいといえる。
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