TY - GEN
T1 - Estimation of Wave Transmission of Five-Layer Cubipod Homogeneous Low-Crested Structures
AU - Molines, Jorge
AU - Lozano, Sergio
AU - Mares-Nasarre, Patricia
AU - Gómez-Martín, M. Esther
AU - Medina, Josep R.
PY - 2022
Y1 - 2022
N2 - Homogeneous Low-Crested Structures (HLCS) with pre-cast concrete units are a new coastal structure to protect beaches from wave attack. HLCS are a natural based solution which can be used to restore degraded coral reefs areas where not only the coastal protection is important but also the regeneration of the ecosystem. The placement grid of HLCS plays a relevant role on their hydraulic performance affecting the wave transmission and hydraulic stability. Within the Project HOLOBREAK, 5-layer Cubipod HLCS trunks with H/V≈2:1 were tested in the wave flume of the Laboratory of Ports and Coasts (30 x 1.2 x 1.2 m) at the Universitat Politècnica de València. The 5-layer Cubipod HLCS was constructed following a triangular equilateral placement grid with porosity p[%]=50 on a 4% bottom slope. The model showed a total height around 20 cm with Cubipods with nominal diameter Dn[cm]=3.79 In total, 100 tests were carried out with four wave steepnesses (s0p=0.01, 0.02, 0.03 and 0.04) and four crest freeboards (Rc[cm]=-3, 0, 5, 10 cm). The tests measured the layer thickness, armor stability, wave reflection and wave transmission of the structure. The wave height (Hm0) and wave period (Tp) at the toe of the structure were obtained using the SwanOne model. In this study, Neural Network models are used to create a new wave transmission estimator valid for 5-layer Cubipod HLCS with R2=0.91 within the ranges-2<Rc/Hm0<3.6 and 0.0080p<0.035.
AB - Homogeneous Low-Crested Structures (HLCS) with pre-cast concrete units are a new coastal structure to protect beaches from wave attack. HLCS are a natural based solution which can be used to restore degraded coral reefs areas where not only the coastal protection is important but also the regeneration of the ecosystem. The placement grid of HLCS plays a relevant role on their hydraulic performance affecting the wave transmission and hydraulic stability. Within the Project HOLOBREAK, 5-layer Cubipod HLCS trunks with H/V≈2:1 were tested in the wave flume of the Laboratory of Ports and Coasts (30 x 1.2 x 1.2 m) at the Universitat Politècnica de València. The 5-layer Cubipod HLCS was constructed following a triangular equilateral placement grid with porosity p[%]=50 on a 4% bottom slope. The model showed a total height around 20 cm with Cubipods with nominal diameter Dn[cm]=3.79 In total, 100 tests were carried out with four wave steepnesses (s0p=0.01, 0.02, 0.03 and 0.04) and four crest freeboards (Rc[cm]=-3, 0, 5, 10 cm). The tests measured the layer thickness, armor stability, wave reflection and wave transmission of the structure. The wave height (Hm0) and wave period (Tp) at the toe of the structure were obtained using the SwanOne model. In this study, Neural Network models are used to create a new wave transmission estimator valid for 5-layer Cubipod HLCS with R2=0.91 within the ranges-2<Rc/Hm0<3.6 and 0.0080p<0.035.
KW - beach protection
KW - Cubipod
KW - Homogeneous Low-Crested Structure
KW - Low-Crested Structure
KW - Wave transmission
UR - http://www.scopus.com/inward/record.url?scp=85178351100&partnerID=8YFLogxK
U2 - 10.3850/IAHR-39WC2521716X2022757
DO - 10.3850/IAHR-39WC2521716X2022757
M3 - Conference contribution
AN - SCOPUS:85178351100
T3 - Proceedings of the IAHR World Congress
SP - 5951
EP - 5957
BT - Proceedings of the 39th IAHR World Congress (Granada, 2022)
A2 - Ortega-Sánchez, Miguel
PB - IAHR
T2 - 39th IAHR World Congress, 2022
Y2 - 19 June 2022 through 24 June 2022
ER -