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 Table D1 (Continued)
Disposal
Operation
Parameter
Types
Units
Options
Material Description Data
yd3
Total volume of dredged material in the hopper dredge
H
Number of distinct solid fractions
H, B
Solid-fraction descriptions
H, B
Solid-fraction specific gravity
H, B
yd3/yd3
Solid-fraction volumetric concentration
H, B
Solid-fraction fall velocity
H, B
ft/sec
Solid-fraction deposited void ratio
H, B
Solid-fraction critical shear stress
H, B
lb/sq ft
Cohesive? (yes or no)
H, B
Stripped during descent? (yes or no)
H, B
Moisture content of dredged material as multiple of liquid
H, B
Cohesive
limit
Water density at dredging site
H, B
g/cc
Salinity of water at dredging site
H, B
ppt
Optional
Temperature of water at dredging site
H, B
Celsius
Optional
Desired number of layers
B
yd3
Volume of each layer
B
Velocity of vessel in x-direction during dumping of each
B
ft/sec
layer
Velocity of vessel in z-direction during dumping of each
B
ft/sec
layer
Disposal Operation Data
Location of disposal point from top of grid
H, B
ft
Location of disposal point from left edge of grid
H, B
ft
Length of disposal vessel bin
H, B
ft
Width of disposal vessel bin
H, B
ft
Distance between bins
H
ft
Predisposal draft of hopper
H
ft
Postdisposal draft of hopper
H
ft
Time required to empty all hopper bins
H
sec
Number of hopper bins opening simultaneously
H
(Sheet 3 of 4)
D7
Appendix D Short-Term Fate of Dredged Material Model
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