Abstract
Capillary barrier is a simple soil layer system which is composed of a finer soil layer underlain by a coarser soil layer. Water infiltrated into soil is retained above an interface between the soil layers, and, in the case of tilted interface, water retained flows downward along the interface. Water flow downward along the interface accumulates its volume of flow due to continuous supply of infiltration water from the soil surface, and begins to percolate into the coarse soil layer at some length of the diversion. This diversion length is one of important parameters to select soil particle contrast between fine and coarse soils and to determine structural dimensions of capillary barrier. In the study the diversion length of capillary barrier was investigated by field observation of soil moisture in the slope and by laboratory soil box experiment.
| Original language | English |
|---|---|
| Title of host publication | 5th Asia-Pacific Conference on Unsaturated Soils 2012 |
| Pages | 643-647 |
| Number of pages | 5 |
| Volume | 2 |
| Publication status | Published - 2012 |
| Event | 5th Asia-Pacific Conference on Unsaturated Soils 2012 - Pattaya, Thailand Duration: Feb 29 2012 → Mar 2 2012 |
Other
| Other | 5th Asia-Pacific Conference on Unsaturated Soils 2012 |
|---|---|
| Country | Thailand |
| City | Pattaya |
| Period | 2/29/12 → 3/2/12 |
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Keywords
- Capillary barrier
- Diversion length
- Unsaturated hydraulic properties of soil
ASJC Scopus subject areas
- Soil Science
Cite this
Estimation of water diversion provided by capillary barrier of soils. / Nakafusa, S.; Kobayashi, K.; Morii, T.; Takeshita, Yuji.
5th Asia-Pacific Conference on Unsaturated Soils 2012. Vol. 2 2012. p. 643-647.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Estimation of water diversion provided by capillary barrier of soils
AU - Nakafusa, S.
AU - Kobayashi, K.
AU - Morii, T.
AU - Takeshita, Yuji
PY - 2012
Y1 - 2012
N2 - Capillary barrier is a simple soil layer system which is composed of a finer soil layer underlain by a coarser soil layer. Water infiltrated into soil is retained above an interface between the soil layers, and, in the case of tilted interface, water retained flows downward along the interface. Water flow downward along the interface accumulates its volume of flow due to continuous supply of infiltration water from the soil surface, and begins to percolate into the coarse soil layer at some length of the diversion. This diversion length is one of important parameters to select soil particle contrast between fine and coarse soils and to determine structural dimensions of capillary barrier. In the study the diversion length of capillary barrier was investigated by field observation of soil moisture in the slope and by laboratory soil box experiment.
AB - Capillary barrier is a simple soil layer system which is composed of a finer soil layer underlain by a coarser soil layer. Water infiltrated into soil is retained above an interface between the soil layers, and, in the case of tilted interface, water retained flows downward along the interface. Water flow downward along the interface accumulates its volume of flow due to continuous supply of infiltration water from the soil surface, and begins to percolate into the coarse soil layer at some length of the diversion. This diversion length is one of important parameters to select soil particle contrast between fine and coarse soils and to determine structural dimensions of capillary barrier. In the study the diversion length of capillary barrier was investigated by field observation of soil moisture in the slope and by laboratory soil box experiment.
KW - Capillary barrier
KW - Diversion length
KW - Unsaturated hydraulic properties of soil
UR - http://www.scopus.com/inward/record.url?scp=84869844038&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869844038&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84869844038
SN - 9781622762644
VL - 2
SP - 643
EP - 647
BT - 5th Asia-Pacific Conference on Unsaturated Soils 2012
ER -