AN EFFECTIVE DESIGN OF A DOUBLE PARAPET PERMEABLE-TYPE SEAWALL USING THE CADMAS-SURF SIMULATION

Kenji Ishimoto, Toshiyuki Asano, Nobuyuki Ono, Haruyuki Kojima

Abstract


At Beppu port (Kitahama area 1), where Satohama creation is underway with considerations of protection against the high tide, utilization of the seashore, and the environment, a double parapet seawall for both utilization and protective effects was planned. For a double parapet seawall, vertical wave-dissipating blocks and a permeable layer structure for drainage were employed. To evaluate the multiple functions of protection for overtopping waves, (Super Roller Flume for Computer Aided Design of Maritime Structures) and a physical model were conducted. The calculated overtopping flow of CADMAS-SURF matched with that of the simulation model through CADMAS-SURF, and therefore the applicability of the physical model was confirmed. Since the physical model is often performed for representative cross- sections, reflecting the results of the physical model for parameter adjustment in the CADMAS-SURF computation resulted in improving the reliability of examinations of other parts of cross-sectional dimensions, and therefore enabled the omission of Unneeded cases in the physical model.

Keywords


overtopping waves; CADMAS-SURF; Double Para-pet; permeable layer; physical model

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References


Goda, Y. et al.(1975) Laboratory Investigation on the Overtopping Rate of Seawalls by Irregular Waves, Report of The Port and Harbor Research Institute.

Coastal Development Institute of Technology (CDIT) (2001) Research and Development of Numerical Wave Channel (CADMAS-SURF), CDIT Library, No.12, (in Japanese).

Coastal Development Institute of Technology (CDIT) (2008) CADMAS-SURF Business Calculation Casebook, CDIT Library, No.30, (in Japanese).

The Overseas Coastal Area Development Institute of Japan (OCDI) (2009) TECHNICAL STANDARDS AND COMMENTARIES FOR PORT AND HARBOUR FACILITIES IN JAPAN




DOI: https://doi.org/10.9753/icce.v34.structures.67