The Scour of Cohesive Soils by an Inclined Submerged Water Jet
Abstract
A physical model test consisting of a vertically inclined submerged turbulent jet impinging upon a horizontal brick-like clay sample was conducted. Using dimensional analysis the controlling parameters were identified. The data was collected and analyzed to determine the functional relationships between time duration of scour impingement, shear strength of clay, distance of separation between sample and jet, and angle of inclination of jet. It was shown that a linear relationship existed between the scour volume and time of impingement. Furthermore, a relationship existed between the shear strength of the clay and the scour rate and volume. However, the primary governing parameter of scour rate and volume was the tractive shear stress resulting from the impinging jet. The tractive shear stress was varied by changing the angle of inclination and distance of separation of the jet. Theses.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1990
- Accession Number
- ADA223971
Entities
People
- Joseph D. Hedges
Organizations
- Naval Postgraduate School