Core-enhanced sand dunes are hybrid coastal defence structures that combine the storm surge protection offered by traditional hard coastal structures with the aesthetically pleasing appearance and wave energy dissipation potential of coastal sand dunes. Essentially, these are hard coastal structures covered under a sacrificial sand dune. In this study, ongoing conceptual design efforts of such structures for a potential Houston-Galveston region storm surge suppression system are presented along with results from physical model tests of three different core-enhanced dunes. These tests were carried out in a moveable-bed wave flume to determine the erosion evolution and technical feasibility of various core-enhanced dunes under irregular wave attack. Results were compared to a plain sand dune without core-enhancement. The three different cores under investigation were a clay levee, an armour stone revetment, and a T-wall. Findings showed that profile evolution of the core-enhanced dunes varied significantly based on core structure.

Original languageEnglish
Title of host publicationCoastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities - Proceedings of the Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
PublisherAmerican Society of Civil Engineers (ASCE)
Pages65-73
Number of pages9
ISBN (Electronic)9780784480304
DOIs
Publication statusPublished - 2015
EventCoastal Structures and Solutions to Coastal Disasters Joint Conference 2015 - Boston, United States
Duration: 9 Sep 201511 Sep 2015

Conference

ConferenceCoastal Structures and Solutions to Coastal Disasters Joint Conference 2015
CountryUnited States
CityBoston
Period9/09/1511/09/15

ID: 26113232