Research Article
Feb 1971
Unconfined Transient Seepage in Sloping Banks
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 97, Issue 2
Abstract
A finite difference scheme is used for the problem of unsteady flow with arbitrary variations in water levels in nonhomogeneous and anisotropic porous soils. The solutions are obtained by using the finite difference scheme for an approximate nonlinear and the linearized version of the free surface equation of flow. The phreatic surface at any time level is located by satisfying the special boundary condition at that surface. A special iterative scheme is employed to locate the point of exit of the phreatic surface at the entrance face. Numerical solutions are compared with experimental results with a large parallel-plate viscous flow model. Good agreement is obtained between the two results. A flow net is constructed for typical numerical results to indicate their application for field problems. On the basis of good comparisons, it is concluded that the proposed numerical method can be employed for the location of the free surface in riverbanks and embankments subjected to transient flow conditions.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 97 • Issue 2 • February 1971
Pages: 357 - 373
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Feb 1971
Published online: Feb 12, 2021
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Authors
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Chandrakant S. Desai, AM.ASCE
Res. Civ. Engr.; Soi. and Rock Mech. Branch, USAE Waterways Experiment Station, Vicksburg, Miss.
Walter C. Sherman Jr., M.ASCE
Chief., Soil and Rock Mech. Branch, USAE Waterways Experiment Station, Vicksburg, Miss.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.