INVESTIGATIONS ON QUARRY STONE TOE BERM STABILITY

Proceedings of the International Conference on Coastal Engineering

Bart van Zwicht¹  Bas Reedijk¹  Richard de Rover¹  Markus Muttray¹ 

[1] Delta Marine Consultants

关键词: rubble-mound breakwater;    rock toe;    toe berm stability;   

DOI  :  10.9753/icce.v34.structures.77

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

Model test results from four experimental studies have been compiled in a data set with 687 test results. Three widely used or recently developed toe stability formulae have been validated against these model test results. It was found that all three formulae suffer from a lack of accuracy and general validity. This is caused by shortcomings of the underlying wave flume studies. More precisely, the wave height and the water depth above the toe berm are two main influence parameters for the toe berm stability and they are not independent in these studies. Testing the interdependence of parameters is therefore recommended for wave flume studies. An alternative toe berm stability formula was developed by a step-wise approach starting with a simple case with a minimum number of influencing factors and followed by more complex cases. The new formula is believed to provide a more meaningful description of the toe berm stability than existing formulae; this however requires further substantiation. The new approach is proposed as a working hypothesis for further studies and is recommended as benchmark for toe berm testing and design.

【 授权许可】

Unknown