Quality assessment of cutoff walls for reliability improvement of containment techniques
| Project/Area Number |
24760379
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geotechnical engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
TAKAI Atsushi 京都大学, 地球環境学堂, 助教 (30598347)
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| Co-Investigator(Renkei-kenkyūsha) |
KATSUMI Takeshi 京都大学, 地球環境学堂, 教授 (60233764)
INUI Toru 京都大学, 地球環境学堂, 准教授 (90324706)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 土壌地下水汚染 / 封じ込め / ソイルベントナイト / 電気式静的コーン貫入試験 / 自己修復性 / 透水試験 / 品質保証・品質管理 / 遮水工 / ベントナイト / 自己修復 / 地盤環境工学 / 移流拡散 / 透水係数 / 静的コーン / 品質評価 / QC/QA |
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| Outline of Final Research Achievements |
This study focuses on soil-bentonite which is one of the most common barrier materials, and consists of bentonite and in-situ soil. Various laboratory tests were conducted from the viewpoint of: 1) on-site quality assessment, and 2) self-sealing capability against hydraulic defects. The experimental results indicate that the piezocone test, which is widely applied on site investigations, can detect the hydraulic defects caused by less bentonte amount with a spatial continuity. It was also verified that the soil-bentonite can display self-sealing capability and recover its hydraulic barrier performance when the specimen has an intentional defect due to the combined effects of its deformability and the reswelling of bentonite.
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Report
(4 results)
Research Products
(24 results)
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[Journal Article] Impact of acid rock drainage on the hydraulic performance and chemical compatibility of geosynthetic clay liners2014
Author(s)
Naka, A., Flores, G., Katsumi, T., Inui, T., Takai, A., and Sakanakura, H.
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Journal Title
Proceedings of the 7th International Congress on Environmental Geotechnics
Volume: なし
Pages: 504-511
Related Report
Peer Reviewed
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[Journal Article] Hydraulic barrier performance of soil bentonite mixture cutoff wall2013
Author(s)
Takai, A., Inui, T., Katsumi, T.,, Kamon, M., and Araki, S.
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Journal Title
Coupled Phenomena in Environmental Geotechnics – From Theoreical and Experimental Research to Practical Applications
Volume: -
Pages: 707-714
Related Report
Peer Reviewed
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[Journal Article] Effect of deformation on the hydraulic barrier performance of SBM cut-off wall2013
Author(s)
Tamura, N., Takai, A., Inui, T., Katsumi, T., Kurihara, F., Kamon, M., and Araki, S.
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Journal Title
Geo-Environmental Engineering 2013 - 12th Global Joint Seminar on Geo-Environmental Engineering
Volume: -
Pages: 198-203
Related Report
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