A FIELD EXPERIMENT ON BREACH GROWTH IN SAND-DIKES

[摘要] The set-up and results of a field experiment on sand-dike breach erosion are described. It is found that the breaching process for the 2.2 m high sand-dike is similar to that in Visser's (1988) laboratory experiments with a 0.6 m high sand-dike. Confrontation of Visser's (1988) breach erosion model with the field data shows reasonable agreement for the first stages of the breaching process. As yet the model is not applicable to the final phase of the sand-dike breach erosion. If applied then it would fairly overestimate the breach growth in this final stage.

[学科分类] 建筑学

[关键词] dike;sand dike;field experiment;beach growth