| Budget Amount *help |
¥2,678,000 (Direct Cost: ¥2,060,000、Indirect Cost: ¥618,000)
Fiscal Year 2010: ¥1,274,000 (Direct Cost: ¥980,000、Indirect Cost: ¥294,000)
Fiscal Year 2009: ¥1,404,000 (Direct Cost: ¥1,080,000、Indirect Cost: ¥324,000)
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| Research Abstract |
The unsaturated seepage experiment which used large scale acrylic column was performed to clarify influences that the mixing rate of gravel and of void and the dry density of fine fraction exert on the soil water character. As a result, it was shown that the influence about the shape of soil water characteristic curve was little on the mixing rate of gravel and of void, and large on the dry density of fine fraction. Then, the water seepage velocity of unsaturated soil became small when voids were mixed with soil. Therefore it was shown that water passed through not void but fine fraction when water infiltrated in the unsaturated ground.
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