7000m3 Trailing Suction Hopper Dredger

TSHD dredger

General characteristic

a. Self-propelled trailing suction hopper dredger with the functions of hopper self-emptying, bow-ejection and bow-blowing for pumping ashore.

b. It is a single steel deck ship with bulbous bow and twin tail fin. The wheel house is located on the top of poop.

c. Two engines, twin propellers and twin rudders with electrically driven bow thruster.

d. Dredging in great costal area and navigation in unrestricted area.

e. Tank capacity: 7114m³

f. Soil loading capacity: 8800 t

g. Max. dredging depth: 30m

h. Suction pipe/discharging pipe diameter: 800/750mm

i. Two trailing suction pipes with three lifting points

j. Totally 14 hopper doors of 3000mm, in two lines

k. Full loaded navigation speed: 12kn, Dredging speed (two suction pipes dredge, converse water current speed 4kn): 2-2.5kn.

l. Complement: 33P

m: Navigation duration: 25days

n. Total power: 10922Kw

o. Hopper capacity coefficient: 0.41

p. Loaded soil coefficient: 0.653

q. Power coefficient: 1.535

r. Dredging operation type:

When the soil is dredged into the hopper, the soil

1. it can be dumped by hopper bottom doors.

2. by hopper self-emptying system to do bow-ejection for pumping ashore

3. by hopper self-emptying system, connect pipeline by fast-connection ball joint to do