1. Breaking Wave Force Distributions and Design Criteria for Slender Piles
- Author
-
John M. Niedzwecki and D.R. Basco
- Subjects
Engineering ,geography ,geography.geographical_feature_category ,business.industry ,Plane (geometry) ,Elevation ,Front (oceanography) ,Breaking wave ,Mechanics ,Section (archaeology) ,Flanking maneuver ,Geotechnical engineering ,business ,Pile ,Oceanic basin - Abstract
Laboratory scale water waves broke on a plane sloping beach in the presence of a slender pile instrumented at one thin section with a force measurement device. This measured the forces when waves broke in front of, on and immediately behind the pile. Time series of measured force were averaged for a number of repetitive wave breaking events, all for the measurement section at one particular vertical elevation. Dummy pile sections flanking the measurement section produced a uniform diameter vertical pile in the presence of breaking waves. By repeating tests at other vertical elevations, other breaking/broken force distributions were obtained. The measured results were normalised and compared with model ocean basin measurements. Both series gave similar force distributions. Total integrated force and overturning moments exceed those found in nonbreaking waves of similar steepness by a factor of 2 or more.
- Published
- 1989