| Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2018: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2017: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2016: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
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| Outline of Final Research Achievements |
In this study, a method to evaluate shear deformation and soil moisture of slopes by using elastic wave is presented. A full-scale multi-layer shear model was used to simulate the pre-failure process of a slope, and the wave propagation was observed. The detailed behavior of elastic wave propagation in soil over a wide range of soil moisture, shear stress, and shear deformation, were explored.
To investigate the behavior of elastic wave propagation in the natural slope surface layer, elastic wave monitoring has been conducted at a slope located at Aso City, Kumamoto, Japan. This slope was suffered from the 2016 Kumamoto Earthquakes and some big cracks appeared on the slope surface. Behaviors of elastic wave velocities and attenuation with soil moisture on-site are similar to laboratory experiments.
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