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JMSE, Vol. 11, Pages 1727: Evolution of Scour Length around Circular Piles Subjected to Irregular Waves Due to Climate Change
Journal of Marine Science and Engineering doi: 10.3390/jmse11091727
Authors: Iván F. Arjona-Catzim Karina Ocaña-E. de los Monteros Jaime M. Horta-Rangel Dora L. Ávila-Arzani Juan B. Hernández-Zaragoza Teresa López-Lara Eduardo Rojas-González
Scour is a phenomenon that affects structures deployed in rivers or seas, favoring the transport of sediments around their foundations, which can expose their structural stability. This work aimed to develop a physical model of a mobile bottom to determine the scour-hole extensions around a group of four vertical piles of circular sections subjected to irregular waves. For this purpose, a beach profile and a typical slope were constructed and subjected to 24 h of storm waves, divided into 12 h intervals in the prototype. Additionally, three wave periods were studied according to the Mexican Institute of Transportation wave data and three scenarios of a rise in sea level. The data suggest that the length of the scour hole was greater in the piles in the front for all cases, which may be reflected in a reduction in scour protection costs. The results obtained for the extent of the scour hole suggest a setting of less than four times the pile diameter in most cases. Finally, it is inferred that a rise in sea level by itself is not a decisive factor in the increase in the values obtained; therefore, it is necessary to consider the variations in wave heights and wave periods associated with such increases.
