HYDRODYNAMIC STABILISATION SYSTEM AGAINST COASTAL EROSION

摘要

The invented Hydrodynamic Stabilisation System (HDS) is applied to promote the infiltration rate in the swash zone to compensate for the minor conductivity in beach profiles composed of fine sand particles, by reducing the capillary effect (negative pore pressure governed by Darcy's law) within the beachface to improve the horizontal and vertical flow through the beachface to promote uprush sediment transport and entrapment. The system comprises a vertically mounted aeration pipe (1) partially buried into the subsoil of the upper beach bed. This pipe (1) is open to atmospheric air. The aeration pipe (1) is mounted onto a hub (2), which is buried in the subsoil of the upper beach immediately under the aeration pipe (1). The hub (2) is further connected to a series of filter membrane vertical tubes or pipes (4) vis tubes or pipes (3).