Abstract
Leakage of backfilling sand through corrosion holes of a steel sheet-pile quay wall is investigated numerically in terms of flow velocity tangential to the surface of the sand and volumetric strain in the sand near the hole, which is positive in compression. Numerical results show that the absolute value of the flow velocity reaches a maximum during a decrease in the volumetric strain, suggesting that the sand begins to be leaked more easily at this phase. Furthermore, it is revealed that when the hole is located near the still water surface, when the wave height and period increase and the distance between the hole and still water surface decreases for the submerged hole, and when the size of the hole increases regardless of its position, the absolute value of the flow velocity increases and the volumetric strain decreases, suggesting that the leakage of the sand tends to occur at these conditions.
