Using Suction to Minimize Sand-Bed Scour

by David M. Rooney,
Jerry L. Machemehl,


Serial Information: Journal of the Hydraulics Division, 1977, Vol. 103, Issue 4, Pg. 443-449


Document Type: Journal Paper

Abstract: An unprotected cylindrical pier was exposed to the erosive forces of unidirectional currents with superimposed waves traveling with or against the current. The same set of tests was repeated with a cylinder through which ground flow was pumped. Inducing suction through a cylinder placed in a sand bed greatly reduces scour and enhances stability. By sufficiently increasing the pumping rate, even the combined dislocating forces of waves and currents can be nullified.

Subject Headings: Pumping tests | Cylinders | Suction | Bed materials | Scour | Piers | Erosion | Professional societies

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