The Study of Hydraulic Conductivity in The Single- and Double-Layered Soils
碩士 === 國立中興大學 === 水土保持學系 === 89 === Six soil samples collected from slopeland orchard were used as study materials. The saturated hydraulic conductivity of undisturbed and repacked column of these six soils were measured based on the Darcy''s Law. The combination of double layers of these...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2001
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| Online Access: | http://ndltd.ncl.edu.tw/handle/89505931993597825589 |
| Summary: | 碩士 === 國立中興大學 === 水土保持學系 === 89 === Six soil samples collected from slopeland orchard were used as study materials. The saturated hydraulic conductivity of undisturbed and repacked column of these six soils were measured based on the Darcy''s Law. The combination of double layers of these six soils conductivity were also measured and calculated. The results indicated that the saturated hydraulic conductivity of undisturbed soils were much larger than the repacked soils. The relation equation between undisturbed soil saturated hydraulic conductivity (Ku) and repacked soil saturated hydraulic conductivity (Kr) is as following:
Ku = 2.931Kr－0.782f + 2.21D－5.363 (R2=0.956**)
Where f is porosity, D is the ratio of geometric mean diameter and effective particle diameter.
The relationship of measured and calculated double-layered soil saturated hydraulic conductivity for the Da-Keng experimental area is
Keff’ = 10^0.089×Keff^0.947 (r2=0.845**)
Where Keff’ is measured saturated hydraulic conductivity of double-layered soil, Keff is calculated saturated hydraulic conductivity of double-layered soil.
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