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The Paintal (1967) formula can be used to estimate transport rates of coarse-grained bed material (such as stones from a bed protection) under low hydraulic loads just above the threshold of motion; the application however is limited to steady currents. This paper presents research aimed at extending the range of application to a combination of regular non-breaking waves and a steady current.

LOW-MOBILITY TRANSPORT OF COARSE-GRAINED BED MATERIAL