catalog of prefabricated
coastal protection
units

${\displaystyle {\frac {H_{s}}{\Delta \cdot d_{n50}}}={\sqrt[{3}]{K_{d}cos\alpha }}}$

Year	2008
Inventor	Jose Maria Berenguer Perez
Country	Spain
Company	Berenguer Ingenieros
Layer coefficient kΔ	1.00
Shape coefficient ks	0.57
Stability number kd	6 for round head, 12 for trunk (including safety margin
Preferred design formula	Use Hudson formula with appropriate kd value
Application	single layer, random placement
Application range	large waves
Patent	ES200802129A
Trademark	owned by SATO
Wikipedia pages

• The consulting company of Berenguer has developed this block in cooperation with Universidad Politécnica de Valencia (Josep Medina), the block is marketed by SATO (Sociedad Anónima Trabajos y Obras, originally a daughter company of "Koninklijhe Nederlandsche Maatschappij Voor Havenwerken N.V” ), see https://www.cubipod.com