| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Outline of Final Research Achievements |
The currently widely used shallow landslide prediction models do not take into account the effect of water flow through bedrock layers. In this study, detailed field observations in a small mountain basin clarified the effect of runoff of bedrock groundwater on the spatiotemporal variation of the groundwater level in the soil layers. In addition, by measuring the hydraulic properties characterizing water movement in soil and bedrock layers, and by combining seepage flow analysis including bedrock layers and slope stability analysis, a new shallow landslide prediction model that incorporates water movement through bedrock layers was developed.
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