Steady Drainage of Layered Soils: I, Theory

by Sadik Toksoz,
Don Kirkham,

Serial Information: Journal of the Irrigation and Drainage Division, 1971, Vol. 97, Issue 1, Pg. 1-18

Document Type: Journal Paper


This is the first of two papers on steady drainage of layered soils. In this paper, the stream and potential functions for the steady drainage of two-layered and three-layered soils have been derived. Two sets of flow nets have been given for each case. From the derivations for the two-layered and three-layered soils, it has been deduced how to solve steady drainage problems for soils with more than three layers. In the second paper, 29 nomographs will be given for easy calculation of drain spacings in two-layered soils, as well as spacing formulas for the two- and three-layered soils.

Subject Headings: Layered soils | Drainage | Spacing | Two-dimensional flow

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