Wave Impact Pressure-Impulse on Vertical Structures with Overhangs

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The study of wave impact physics and magnitudes are key for the design of vertical coastal hydraulic structures. This research addresses the study of standing wave impacts on vertical coastal hydraulic structures with a relatively short horizontal overhang, which is especially relevant for structures such as lock gates, sluice gates, dewatering sluices, flood gates and storm surge barriers. This paper applies the pressure-impulse theory to predict the pressure-impulse caused by standing wave impacts. These theoretical estimates are compared with results from four extensive regular wave tests from laboratory experiments conducted at the Hydraulic Engineering Laboratory of the Delft University of Technology. The agreement for two test cases is good, while differences are observed in the other two cases. This study concludes that a prediction method based on the pressure-impulse theory will allow to carry out preliminary load estimations from standing wave impacts on vertical structures with overhangs. Nevertheless, further research is required considering a larger range of structure dimensions, incident wave characteristics and influencing processes such as air entrapment.
Original languageEnglish
Title of host publicationCoastal Structures 2019
EditorsNils Goseberg, Torsten Schlurmann
PublisherBundesanstalt für Wasserbau
Number of pages11
ISBN (Electronic)978-3-939230-64-9
Publication statusPublished - 2019
EventCoastal Structures Conference 2019 - Courtyard by Marriott Hannover hotel, Hannover, Germany
Duration: 30 Sep 20192 Oct 2019


ConferenceCoastal Structures Conference 2019
Internet address


  • wave impacts
  • vertical walls
  • coastal structures
  • hydraulic structures
  • overhangs
  • pressure-impulse theory
  • physical modelling


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