2010 Fiscal Year Final Research Report
The development of change forecast technique of moisture distribution for the filled-valley ground
| Project/Area Number |
21860008
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Geotechnical engineering
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
MORI Tomohiro 東北大学, 大学院・工学研究科, 助教 (40552394)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Keywords | 土の水分特性 / 不飽和土 / 浸透 |
|---|
| 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.
|
