Strength of the grass sod on dikes during wave overtopping
toon extra info.
|[Netherlands] : [publisher not identified]|
|1 online resource (PDF, XXV, 105 pages) illustrations|
|Student report, Delft University of Technology, Hydraulic Engineering|
|Toelichting (Engels)||There is a shift in the approach for designing coastal structures. In the past, dikes were designed on the probability of exceedance of an incoming wave during storm conditions. In the near future, the design criteria will be the probability of flooding of the hinterland. In order to determine this flooding probability, the strength of the dike has to be known. This thesis focuses on the erosion of the grass sod during overtopping wave volumes. Several tests have been performed in the last few years with the wave overtopping simulator. During this thesis, some of these locations have been tested for the strength of the grass sod with a newly developed method. This new method, called the sod pulling method, tests the actual strength of the grass by lifting the grass sod out of the top layer. However, this method makes at least two cuts in the sod in order to attach the pull frame. So a methodology has to be developed to calculate the strength of an intact grass sod from the measured data.|
Technische Universiteit Delft