Wave impacts on vertical seawalls and caisson breakwaters

In most developed coastal areas, seawalls protect towns, road, rail and rural infrastructure against wave overtopping. Similar structures protect port installations worldwide, and may be used for cliff protection. When a large tidal excursion and severe environmental conditions concur to expose seawalls and vertical face breakwaters to wave...

Engineering review on the final closure of Saemangeum Dike

HR Wallingford has commenced an engineering review on the Final Closure of Saemangeum Dike. This draft final report represents the completion of the second phase of studies by HR Wallingford and is issued for review by KARICO and discussion with their representatives during meetings planned in Ansan during the second week of October 2005. The...

Report on hazard analysis

Prediction of wave overtopping discharges for seawalls / breakwaters have improved significantly over the last 25 years, but processes associated with overtopping hazards to people on or close behind seawalls are not yet well understood. Despite research advances in recent years, there remain important gaps in knowledge and disagreements over...

Computational and Physical Modelling on Saemangeum Closure Works

HR Wallingford was commissioned by The Rural Research Institute of the Korea Agricultural and Rural Infrastructure Corporation to carry out various studies relating to the final closure of the Saemangeum project offshore dikes currently under construction on the western coastline of South Korea. In addition to the numerical modelling of the...

Wave overtopping of vertical coastal structures: Influence of wave breaking and wind

Beach response to the presence of a sea wall: Comparison of field observations

Measurements of erosion and accretion in the neighborhood and in front of seawalls and beach walls.

Laboratory investigation on the overtopping rate of seawalls by irregular waves

Series of measurements with irregular waves were undertaken for model seawalls of vertical walls with and without protection by concrete block mounds. Experimental data were compared and supplemented with theoretical calculations by the combination of the author's random wave breaking model in shallow waters and the weir type overflow model. The...

Scour of flat sand beaches due to wave action in front of sea walls

The erosion of sand beaches due to oscillatory water particle motion of non-breaking waves can be of importance, particularly where such a beach is fronted by a sea wall supported on spread foundation. Laboratory study was conducted with natural beach sand; waves were generated mechanically. Geometric variables included the inclination of sea...