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Estimating Culvert Scour in Cohesive Material
An investigation of scour at culvert outlets in a cohesive bed material is presented. Twelve experiments of 1000 minutes duration were conducted using a cohesive bed material. Culvert 27.3 cm (10-in.), 35.6 cm (14-in.) and 45.7 cm (18-in.) diameters were tested with discharges ranging from 0.054 m³/sec + 0.824 m³/sec (1.91 cfs to 29.13 cfs). The tailwater elevation was maintained at 0.45 D ± 0.05 D above the culvert invert where D is the diameter of the culvert. The results yielded a series of empirical relationships expressing the depth, width, length and volume of scour as a function of the culvert diameter, culvert outlet velocity, soil plasticity index, soil shear strength and fluid density. General observations concerning scour hole formation, growth and stabilization are reported.
Estimating Culvert Scour in Cohesive Material
An investigation of scour at culvert outlets in a cohesive bed material is presented. Twelve experiments of 1000 minutes duration were conducted using a cohesive bed material. Culvert 27.3 cm (10-in.), 35.6 cm (14-in.) and 45.7 cm (18-in.) diameters were tested with discharges ranging from 0.054 m³/sec + 0.824 m³/sec (1.91 cfs to 29.13 cfs). The tailwater elevation was maintained at 0.45 D ± 0.05 D above the culvert invert where D is the diameter of the culvert. The results yielded a series of empirical relationships expressing the depth, width, length and volume of scour as a function of the culvert diameter, culvert outlet velocity, soil plasticity index, soil shear strength and fluid density. General observations concerning scour hole formation, growth and stabilization are reported.
Estimating Culvert Scour in Cohesive Material
Abt, Steven R. (author) / Ruff, James F. (author)
Journal of the Hydraulics Division ; 108 ; 25-34
2021-01-01
101982-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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