Dispersion Estimates for Hydraulic Dredge Spoil

by Marvin R. Pyles, (A.M.ASCE), Geotechnical Engr.; Tippets-Abbett-McCarthy-Stratton, New York, N.Y.,
Warren L. Schroeder, (M.ASCE), Prof. of Civ. Engrg.; Oregon State Univ., Corvallis, Oreg.,

Serial Information: Journal of the Environmental Engineering Division, 1979, Vol. 105, Issue 3, Pg. 571-582

Document Type: Journal Paper


A method for analysis of the location of sandy dredge spoils on the bottom of a receiving water body has been developed and confirmed by laboratory and field experimentation. Analysis of laboratory data using the method indicates agreement with observation where the physical environment (pipeline discharge velocity, ambient water velocity, settling velocity of particles) is well defined. Application to field operations confirms the laboratory results and shows that the simple form of analysis proposed is consistent with the precision of physical environment definition usually obtainable in dredging practices.

Subject Headings: Particle velocity | Fluid velocity | Settling velocity | Hydraulics | Dredged materials | Water pipelines | Water discharge | Laboratory tests

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