PIPELINE PROTECTION IN THE SURF ZONE

Gerrit J. Schiereck, Henri L. Fontijn

Abstract


Stability relations for rock on a mild slope in breaking waves were investigated, both experimentally and theoretically. Assumptions were made for the influence of turbulence in breaking waves on the load exerted by the wave motion. It appears that with these assumptions, the mechanism is reasonably described in a qualitative way. For design purposes the method is not accurate enough. This is possibly due to the neglection of the (vertical) velocity field near the bottom in a breaking wave, giving an underestimation of the difference in stability in spilling or plunging breakers. The experimental results seem consistent and can be used provisionally for design purposes. An interesting point is that they also are in line with existing relations for stability on steep slopes.

Keywords


surf zone; pipeline; pipeline protection

Full Text: PDF

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.