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Seepage through Unconfined Aquifers with Lower Boundaries of Any Shape
Author(s) -
Youngs E. G.
Publication year - 1971
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr007i003p00624
Subject(s) - aquifer , geology , geotechnical engineering , flow (mathematics) , plane (geometry) , boundary (topology) , boundary value problem , geometry , mathematics , groundwater , mathematical analysis
An analysis of the seepage through unconfined aquifers with lower boundaries of any shape is presented. The differential equation describing the flow includes a term that involves the pressure distribution on the lower boundary. Although in many problems all the required pressure distributions that enable the seepage problem to be solved are not known exactly, an inspection of a given problem gives extreme values of any unknown terms with a final result of known precision. The application of the analysis, checked by electric analog experiments, is illustrated by two examples of seepage problems: first, the seepage over an inclined plane between two parallel ditches; and second, the seaward flow of fresh‐water fed by a freshwater reservoir or by rainfall and supported on saline water from the sea.