| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Outline of Final Research Achievements |
To achieve an economic liquefaction assessment in the residential properties, a simplified method for evaluating the fines content of strata was developed using the friction sound measured during Heavyweight Dynamic Cone Penetration Test (HDCPT) operating. It was achieved, as an outcome of the current work, that the developed method can evaluate the outlines of the depth distribution of fines contents and can estimate the target soil stratum for liquefaction assessment with around 75% of probability. Further, case studies of liquefaction assessments employing fines contents estimated by the developed method were carried out on the investigated grounds then it was concluded that liquefaction safety rates (FL) estimated using friction sound were reasonably agreed with evaluated values from the FL method (Japan Road Association) based on SPT-N value.
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