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 4
Detailed Evaluations
Of the many documents and technologies pertaining to innovative tech-
nology and procedure, 11 were identified by the contractor for detailed
evaluations as related to the present and long-term needs of the Corps.
This section describes the 11 technologies listed below. Additional tech-
nologies are listed in Chapter 5.
Underwater Archimedean screw vehicle.
The PUNAISE dredging system.
Hopper dredge recirculation system.
DOP submersible dredge pumps.
Pivoting gearbox.
High-efficiency dredge pumps.
The SedErode measurement system.
Nearshore shelves.
Sand separation techniques.
River vanes.
Detailed shoaling analyses.
Underwater Archimedean Screw Vehicle
Background
Harbor Branch Oceanographic Institution, Inc., has constructed and suc-
cessfully operated an underwater bottom-crawling dredging device called
the underwater Archimedean screw vehicle (UASV) (Figure 2). The
dredge is designed to surgically remove thin layers of fine-grained materials
with an accuracy of 2 to 4 in.
5
Chapter 4
Detailed Evaluations
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