Hydraulic and earth engineering – Fluid control – treatment – or containment – Erosive scouring
Patent
1988-11-17
1990-02-06
Reese, Randolph A.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Erosive scouring
405 15, 405 21, 405 52, 405 74, E02B 302
Patent
active
048984957
ABSTRACT:
A method of beach/inlet stabilization, based upon a beach/inlet stabilization system for bypassing the littoral drift to cross an inlet, is provided. The beach/inlet stabilization system consists of a well system, a diffuser system, a flow guiding system, a sediment trapping system, a dune drainage system and a water surface elevation sensor. The method disclosed includes the steps of: (1) trapping the sediment carried by the littoral drift during flood tides and storms, with the sediment trapping system in the inlet during flood tides and storms, (2) regenerating the littoral drift by flushing the sediment trapping system when the ebb tidal current is weak, (3) directing the regenerated littoral drift by the diffuser system, located around the jetties between the inlet and the downstream beach, toward the downstream beach suffering from erosion or starvation of the littoral drift, (4) guiding the regenerated littoral drift toward the shore of the downstream beach, (5) lowering the ground water table of the downstream beach by the well system, (6) draining the excess ground water of the dune as the result of storm surges, adjacent to the downstream beach, and (7) sensing the water surface elevation and water flow velocity by the water surface elevation sensor, to generate control signals for the operation of the well system, the diffuser system, the sediment trapping system, the flow guiding system, and the drainage system.
REFERENCES:
patent: 510713 (1893-12-01), Scott
patent: 4614458 (1986-09-01), Austin
patent: 4645377 (1987-02-01), Vesterby
patent: 4669914 (1987-06-01), Kortmann
Olsen Arlen L.
Reese Randolph A.
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