Info

Excavation Method

Excavation Factor

Airlift

Jet

Dredge

Blasting

Type of seabed material

Mud, sand, silt, clay, cobbles

Mud, sand silt, clay

Mud, sand silt, clay

Coral, rock

Water depth

30 to 75 ft

Unlimited

Unlimited

Unlimited

Horizontal distance material moved

Short

Short

Short to long

Short

Quantity of material excavated

Small to large

Small to medium

Small to medium

Small to large

Topside equipment required

Compressor

Pump

Pump

Hydraulic power unit

Shipping space/weight

Large

Small

Medium

Selection Guide for Air Lift Discharge Pipe and Air Line

Table 2-16

Selection Guide for Air Lift Discharge Pipe and Air Line

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