Some schemes of the steady plane filtration from canals and irrigators through a soil layer underlain by a pressure highly permeable water-bearing horizon or an impermeable base in the presence of the ground capillary and evaporation from the free surface of the underground water were considered. The filtration water flows in these schemes were investigated by solving the mixed multiparametric boundary-value problems of the theory of analytical functions with the use of the Polubarinova-Kochina method. On the basis of the models proposed, algorithms have been developed for calculating the sizes of the saturation zone and the rate of the filtration water flow in a canal and an irrigator with account for the ground capillary, the evaporation from the free surface of the underground water, the water depth in the canal, and the upthrust formed by the water in the underlying well-permeable horizon or the water on the impermeable base. The results of calculations carried out for schemes with identical filtration parameters were compared depending on the shape of the bed of the water source (a canal or an irrigator) and on the type of the soil-layer base (a well-permeable waterbearing horizon or a confining layer).
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 85, No. 4, pp. 693–703, July–August, 2012.
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Bereslavskii, É.N. Calculation of filtration from canals and irrigators. J Eng Phys Thermophy 85, 752–763 (2012). https://doi.org/10.1007/s10891-012-0711-0
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DOI: https://doi.org/10.1007/s10891-012-0711-0