2016 Fiscal Year Final Research Report
Study on the practicality for applying Liquefied Stabilized Soil mixed with fiber to backfill material
| Project/Area Number |
26420475
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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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| Research Field |
Geotechnical engineering
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| Research Institution | Muroran Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 地盤防災 / 流動化処理土 / 埋戻し材 / 繊維材補強 / 養生日数 / 養生環境 / 泥水密度 / せん断特性 |
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| Outline of Final Research Achievements |
In this study, effects of curing days, curing environment and slurry density on strength and deformation property of Liquefied Stabilized Soil (LSS) reinforced with fiber are discussed. A series of consolidated undrained triaxial compression test was performed on the specimens cured in laboratory and the specimens taken by block sampling at model ground constructed in the field. At the model ground, a series of portable Falling Weight Deflectometer (FWD) tests was curried out at curing days of 28, 56, 84 and 120 days, respectively. The validity to estimated the stiffness of LSS ground by using of a portable FWD is discussed. Based on the test results, the relationship between the EP.FWD and Etan was discussed. It is considered that the KP.FWD-value is able to estimate the stiffness of backfill ground constructed by LSS reinforced with fiber. And more, it is found that the high-quality backfill ground can be constructed by using of LSS reinforced with fiber compared to LSS.
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| Free Research Field |
工学
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