Experimental Investigation of the Wave Force on the Caisson According to Different Coverage of Armor Units

  • Sang-Ho OhEmail author
  • Jooyeon Lee
  • Jae-Sung Lee
Conference paper


This study experimentally investigated the change of wave force on front wall of the caisson according to different coverage of Tetrapods. Physical experiments were conducted in a two-dimensional wave flume by generating regular waves of different heights and periods by changing the coverage rate of Tetrapods that are placed in front of the caisson model. The front wall of the caisson model was composed of a number of segments to measure the local wave force at different elevations independently. The measurement was carried out by using uni-axial load cells and pressure transducers as well. The measured wave forces were compared with the estimates of Goda’s formula. It was clarified that the wave force on partially-covered caisson is significantly greater than Goda’s formula, especially around top sections of the caisson, probably due to occurrence of impulsive wave loading on the structure.


Caisson Wave force Tetrapods Coverage rate Physical experiment 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.



This research is a part of the project titled “Development of Design Technology for Safe Harbor from Disasters (PM61300)” funded by the Ministry of Oceans and Fisheries of Korea.


  1. Goda, Y. (1974). New wave pressure formulae for composite breakwaters. Proceedings of 14th International Conference on Coastal Engineering, Copenhagen, Denmark: 1702-1720Google Scholar
  2. Goda, Y. (2010). Random seas and design of maritime structures. World Scientific Publishing Company.Google Scholar
  3. Oh, S.-H. and Lee, D.S. (2018). Two-dimensional wave flume with water circulating system for controlling water level. Journal of Korean Society of Coastal and Ocean Engineers. 30(6): 337-342 (in Korean)CrossRefGoogle Scholar
  4. Oh, S.-H. and Ji, C.-H. (2019). Simultaneous measurement of wave forces and pressures on a double-chamber perforated caisson. Measurement Science and Technology (in press).Google Scholar
  5. Takahashi, S. (1996). Design of vertical breakwaters. Port and Airport Research Institute.Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Coastal Development and Ocean Energy Research CenterKorea Institute of Ocean Science and Technology (KIOST)BusanRepublic of Korea

Personalised recommendations