Analysis of Recharge in Anisotropic, Layered, Saturated‐Unsaturated Soil
Publication: Journal of Irrigation and Drainage Engineering
Volume 118, Issue 4
Abstract
A numerical investigation of artificial recharge in multilayered, anisotropic, unconfined porous media is performed for radial flow configuration. The numerical studies, carried out with a saturated‐unsaturated flow model, include the simulation of experimental observations previously documented. The numerical analysis considers the effects of the initial depth of saturation, source geometry, anisotropy as well as material property, and the ratio of equivalent hydraulic conductivity between layers. Once the geometry of the flow region is fixed, the shape of the flow domain and the quantity of flow are determined for any multilayered isotropic‐anisotropic system. For the control series of two cases studied, free‐surface locations closely match the experimental observations. The recharge zone configurations are evaluated by determining the source aspect ratio. In multilayered anisotropic systems, a higher degree of anisotropy results in a greater inflow and a higher position for the free surfaces, when the degree of anisotropy is greater than one. When the recharge is to be accomplished by an infiltrometer, steady‐state flow occurs after a substantial amount of time. This study indicates that the ratio of percent increase in flow rates and percent increase in infiltrometer radii approaches unity.
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References
1.
Abdulrazzak, M. J., and Morel‐Seytoux, H. J. (1983). “Recharge from an ephemeral stream following wetting front arrival to water table.” Water Resour. Res., 19(1), 194–200.
2.
Bouwer, H., and Rice, R. C. (1967). “Modified tube diameters for the double‐tube apparatus.” Soil Sci. Soc. Am. Proc., 31, 437–439.
3.
Cedergren, H. R. (1967). Seepage, drainage and flow nets. John Wiley & Sons, Inc., New York, N.Y.
4.
Dabney, S. M., and Selim, H. M. (1987). “Anisotropy of a fragipan soil: Vertical vs. horizontal hydraulic conductivity.” Soil Sci. Soc. Am. J., 51(1), 3–6.
5.
Day, P. R., and Luthin, J. N. (1953). “Pressure distribution in layered soil during continuous water flow.” Soil Sci. Soc. Am. Proc., 17(2), 87–91.
6.
De Marsily, G. (1986). Quantitative hydrogeology, groundwater hydrology for engineers. Academic Press, Inc., New York, N.Y.
7.
Evans, D. D., Kirkham, D., and Frevert, R. K. (1950). “Infiltration and permeability in soil overlying an impermeable layer.” Soil Sci. Soc. Am. Proc., 15, 50–54.
8.
Freyberg, D. L., Reeder, J. W., Franzini, J. B., and Remson, I. (1980). “Application of the Green‐Ampt model to infiltration under time‐dependent surface water depths.” Water Resour. Res., 16(3), 517–528.
9.
Glass, R. J., Steenhuis, T. S., and Parlange, J.‐Y. (1989). “Wetting front instability, 2. Experimental determination of relationships between system parameters and two‐dimensional unstable flow field behavior in initially dry porous media.” Water Resour. Res., 25(6), 1195–1207.
10.
Hills, R. G., Hudson, D. B., Porro, I., and Wierenga, P. J. (1989a). “Modeling one‐dimensional infiltration into very dry soils, 2. Estimation of the soil water parameters and model predictions.” Water Resour. Res., 25(6), 1271–1282.
11.
Hills, R. G., Porro, I., Hudson, D. B., and Wierenga, P. J. (1989b). “Modeling one‐dimensional infiltration into very dry soils, 1. Model development and evaluation.” Water Resour. Res., 25(6), 1259–1269.
12.
Mariño, M. A. (1978). “Solute transport in a saturated‐unsaturated porous medium.” Modeling, identification and control in environmental systems, G. C. Vansteenkiste, ed., North‐Holland Publishing Co., Amsterdam, The Netherlands, 269–281.
13.
Mariño, M. A., and Luthin, J. N. (1982). Seepage and groundwater. Elsevier Scientific Publishing Co., Amsterdam, The Netherlands.
14.
Marmion, K. R. (1962). “Hydraulics of artificial recharge in nonhomogeneous formations.” Water Resour. Ctr. Contribution No. 48, Univ. of California, Berkeley, Calif.
15.
Mualem, Y. (1976). “A new model for predicting the hydraulic conductivity of unsaturated porous media.” Water Resour. Res., 12(3), 513–522.
16.
Neuman, S. P. (1972). “Finite element computer programs for flow in saturated‐unsaturated porous media.” Project No. A10‐SWC‐77, Hydr. Engrg. Lab., Technion, Haifa, Israel.
17.
Neuman, S. P. (1973). “Saturated‐unsaturated seepage by finite elements.” J. Hydr. Div., ASCE, 99(12), 2233–2251.
18.
Ortiz, N. V., Duke, H. R., Sunada, D. K., and McWhorter, D. B. (1978). “Artificial groundwater recharge with capillarity.” J. Irrig. Drain. Div., ASCE, 104(1), 79–93.
19.
Philip, J. R. (1987). “Steady three‐dimensional absorption in anisotropic soils.” Soil Sci. Soc. Am. J., 51(1), 30–35.
20.
Reeder, J. W., Freyberg, D. L., Franzini, J. B., and Remson, I. (1980). “Infiltration under rapidly varying surface water depths.” Water Resour. Res., 16(1), 97–104.
21.
Rogers, J. S., and Selim, H. M. (1989). “Water flow through layered anisotropic bedded soil with subsurface drains.” Soil Sci. Soc. Am. J., 53, 18–24.
22.
Samani, Z., Cheraghi, A., and Willardson, L. (1989). “Water movement in horizontally layered soils.” J. Irrig. Drain. Engrg., ASCE, 115(3), 449–456.
23.
Selim, H. M. (1987). “Water seepage through multilayered anisotropic hillside.” Soil Sci. Soc. Am. J., 51(1), 9–16.
24.
Starr, J. L., DeRoo, H. C., Frink, C. R., and Parlange, J.‐Y. (1978). “Leaching characteristics of a layered field soil.” J. Soil Sci. Soc. Am., 42, 376–391.
25.
Tracy, J. C., and Mariño, M. A. (1987). “Seepage into variably saturated porous medium.” J. Irrig. Drain. Engrg., ASCE, 113(2), 198–212.
26.
Van Den Berg, J. A. (1989). “Measurements of hydraulic conductivity of silt loam soils using an infiltration method.” J. Hydrol., 110, 1–22.
27.
Van Genuchten, M. T. (1980). “A closed‐form equation for predicting the hydraulic conductivity of unsaturated soils.” Soil Sci. Soc. Am. J., 44, 892–898.
28.
Van Genuchten, M. T., and Nielsen, D. R. (1985). “On describing and predicting the hydraulic properties of unsaturated soils.” Ann. Geophys., 3, 615–628.
29.
Witherspoon, P. A., and Narasimhan, T. N. (1973). Investigation of artificial recharge and pollution from landfill operations. Dept. of the Army, Sacramento District, Corps of Engrgs., Hydrol. Engrg. Ctr., Davis, Calif.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 118 • Issue 4 • July 1992
Pages: 584 - 600
Copyright
Copyright © 1992 ASCE.
History
Published online: Jul 1, 1992
Published in print: Jul 1992
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