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4500 m3 HOPPER DREDGER

Design description:
4500m3 Hopper Dredger
Vessel name:
T.S.H.D. ‘Shoalway’
Owner:
Boskalis, Papendrecht, The Netherlands
Builder:
Intervak Scheepsbouw & Constructie, Harlingen, The Netherlands
 
GENERAL DESCRIPTION:
The dredger fleet of Royal Boskalis Westminster recently was complemented with TSHD ‘Shoalway’. The dredger combines a relative shallow draught with flexible dredging capabilities. Discharge of hopper loads can be achieved through bottom doors or a bow coupling. The bottom doors are integrated in the double bottom structure. A high maneuverability is effected by two rudder propellers. Contractor and designer worked closely together. Already from start of design keywords such as highest operational flexibility in various dredging environments as well as ‘state of the art’ technology played a significant role.
 
 
 
 
PRINCIPAL PARTICULARS
 
 
 
Length over all
90.00
 
m
Length between p.p.
83.08
 
m
Breadth moulded
19.00
 
m
Depth
7.25
 
m
Draught
5.85
 
m
Deadweight (T= 5.85)
5490
 
ton
Dredging draught
6.70
 
m
Deadweight (T= 6.70)
6800
 
ton
GT
4082
 
 
Speed (service)
11
 
kn
 
 
 
 
EQUIPMENT
 
 
 
Main engine (total output)
3000
 
kW
2 x Rudder propeller, each
1500
 
kW
Bow thruster
500
 
kW
 
 
 
 
DREDGING PARTICULARS
 
 
 
Diameter of dragarm
900
 
mm
Max. dredge depth
30
 
m
Sand pump output
1680
 
kW
Jet pump output
2 x 750
 
kW
Hopper capacity
4500
 
m3
Density of hopper load
1.0 – 2.2
 
t/m3
 
 
 
 
CAPACITIES
 
 
 
Gasoil
384
 
m3
Potable water
83
 
m3
Ballast water
290
 
m3