2022 Fiscal Year Final Research Report
Research on improving the safety and security performance of offshore waste disposal sites through innovative lateral impermeable technology
| Project/Area Number |
20K04686
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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 | Shibaura Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 廃棄物処分場 / 鋼製遮水壁 |
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| Outline of Final Research Achievements |
In this study, we proposed and investigated a steel impervious wall for waste disposal sites (especially, sea-level disposal sites) that can not only contain waste water but also promote water purification by effectively utilizing lateral impervious wall (especially, focusing on steel impervious wall). In this barrier wall, the cavity formed in the barrier wall is not filled with low permeability materials such as mortar, and the water leaking (stagnating) in the cavity is collected and drained by pumping. In this study, we experimentally and analytically verified the impervious performance of a steel impervious wall using steel pipe sheet piles with H-H joints and a steel impervious wall that promotes imperviousness and purification of retained water.
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| Free Research Field |
土木工学
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| Academic Significance and Societal Importance of the Research Achievements |
新規に処分場を設置することがきわめて難しくなっている今日，より安全で信頼性の高い遮水工構造を有する廃棄物処分場の確立が望まれている。そのような社会的要請に対して，海面処分場における鋼製遮水壁の耐震性能と遮水・遮蔽性能の相関性の評価技術を確立し，環境に最も適合する鋼製遮水壁技術の高度化を目指した本研究は，実際問題に深く関連している。一方，地震外力等により変形した鋼製遮水壁が維持できる遮水・遮蔽性能の追随性を解明する点においては基礎的研究であり，学術的な独自性がみられる。
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