Polyester ropes are commonly used in taut leg configuration
(Figure 3.85). Taut leg mooring has a smaller footprint
and requires less rope length at equal mooring capacity.
A recent study showed that a combination of taut leg
and catenary mooring results in smaller movement of
the moored structure. Furthermore, this mooring system
is also compatible with the characteristics of catenary
mooring system, which eliminates the requirement of
anti-uplift capacity of the anchors.
3.7.1.2. Anchoring
Deep-water anchoring in taut leg (or semi-taut leg) configuration
is performed using three proven methods.
These are the Vertical Load Anchor (VLA), suction pile and
the fairly new penetrating torpedo anchors.