2016 Fiscal Year Final Research Report
Sustainable framework and technologies for utilizing closed coastal landfills
| Project/Area Number |
15K14031
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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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 |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 廃棄物処分場 / 跡地利用 / 地盤材料特性 / 高度利用 / 持続可能性 / 遮水 / 溶出特性 |
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| Outline of Final Research Achievements |
This research showed that, although the quality of internal water of coastal landfill sites can be deteriorated with time, heavy metals in waste exist as a poorly water-soluble form below a seawater level and, besides, precipitation inside clay layer can be expected due to the anaerobic environment. It was also found that waste ground has an undrained shear strength ranging from 250 kPa to 650 kPa, which becomes larger with a longer curing period. The mobility of arsenic is affected by a change in temperature. Through some laboratory tests, it was demonstrated that the installation of piles through the clay layer will have little adverse effect on the hydraulic barrier performance if the clay layer is deformable enough under normally consolidated condition against over-burden pressure.
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| Free Research Field |
地盤環境工学
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