Hydraulic and earth engineering – Bank – shore – or bed protection – Revetment
Patent
1996-03-05
1998-07-07
Graysay, Tamara L.
Hydraulic and earth engineering
Bank, shore, or bed protection
Revetment
405223, 405303, F02D 1510
Patent
active
057758360
ABSTRACT:
A capping vessel and method for the low-turbidity delivery of a desired depth of capping materials to the sediment surface of a body of water along a predetermined course, the vessel comprising at least one floatable platform; a plurality of generally vertically submerged tremies comprising an array, the array of tremies depending from the at least one platform and extending to a predetermined height above the sediment surface, for the delivery of capping material to the sediment surface; at least one delivery hopper for the apportioning and feeding of capping material to the array of tremies; at least one rotary feeder interposed between the array of tremies and the delivery hopper for delivering the capping material to the array of tremies at a controlled rate; rotation control means for controlling the rate of rotation of the at least one rotary feeder in predetermined relationship to the forward velocity of the platform and the desired depth of capping material; and navigation control means for controlling individually the position of the vessel and the velocity of the vessel along the predetermined course. The vessel further provides means for the deposition of a geotextile prior to capping, and is adapted to permit the laying of over-lapping geotextiles simultaneously with the capping thereof. The apparatus can be used stand-alone or in conjunction with a mother vessel.
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Graysay Tamara L.
Lagman Frederick L.
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