Methods for compensating beach erosion

Details Methods for compensating beach erosion Methods for compensating beach erosion

2006-07-18

2009-12-15

Bagnell, David J (Department: 3672)

Hydraulic and earth engineering

Bank, shore, or bed protection

C405S116000, C405S117000, C405S302600, C037S342000

Reexamination Certificate

active

07632039

ABSTRACT:
In accordance with at least one methodology of the present disclosure, an excavating machine (e.g., excavator, backhoe, bulldozer, etc.) moves an excavating apparatus (e.g., a bucket, blade, etc.) such that the excavating apparatus skims the underwater surface of a beach close to the shoreline to gather sand thereby forming a shallow trench in such surface. The depth of trench is small so that the effects of the sand removal to the contour of the beach is quickly compensated by the wave action of the ocean. Although the depth of the removed layer of sand is small, a significant amount of sand can be gathered by continuing the skimming operation over a much longer horizontal distance relative to the vertical depth of the removed sand. Moreover, by repeating the skimming operation along a shoreline, large amounts of sand can be gathered from the underwater surface of a beach close to the shoreline without a significant prolonged impact to the beach's underwater surface contour.

REFERENCES:
patent: 4393607 (1983-07-01), Hirosawa
patent: 4420275 (1983-12-01), Ruser
patent: 5598648 (1997-02-01), Moriya et al.
patent: 6823616 (2004-11-01), Gutter et al.

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