2023 Volume 79 Issue 17 Article ID: 23-17185
A field survey and calculation of topographic changes were carried out for Tsubasa Beach in Jonanjima Seaside Park as an artificial beach in suburbs of the city. In addition, considerations for the design of artificial beaches in an environment dominated by the action of wind were discussed. In the field survey, it was observed that windblown sand from the beach was deposited on the promenade located behind Tsubasa Beach, and it was an obstacle to the use of the beach. In the calculation, the current topography of Tsubasa Beach was reproduced, and the calculation was carried out considering windblown sand. As a result, beach sand was transported behind the beach and deposited there. In addition, it was found that the erosion tendency was shown in the beach area, and windblown sand to the back of the beach cause the loss of sand in the beach area. From these results, it was shown that it is necessary to consider topographical changes due to wind waves and sand movement due to windblown sand when designing artificial beaches in an environment with predominant wind actions.
