Mooring line holding capacity
Mooring line holding capacity
The document provides a method to estimate the holding capacity of a mooring line on the seabed. This is crucial for ensuring the stability and security of moored vessels or structures.
The holding capacity (P) of the mooring line on the seabed is calculated using the formula:
P = f x l x w
where:
- f: Friction coefficient between the mooring line and the seabed.
- l: Length of the mooring line laying on the seabed in meters [m].
- w: Unit weight of the mooring line in water in tonnes per meter [t/m].
If detailed information on the friction coefficient is unavailable, the following values can be used:
- Chain:
- Starting: 1.0
- Sliding: 0.7
- Wire Rope:
- Starting: 0.6
- Sliding: 0.25
Catalog excerpts
Mooring line holding capacity on the seabed The holding capacity (P) in [t] of the part of the mooring line that is laying on the seabed, can be estimated with the following equation: P = f x l x w with f : friction coefficient between the mooring line and the seabed l : the length of the mooring line laying on the seabed in [m] w : the unit weight of the mooring line in water in [t/m] If no detailed information on the friction coefficient is available, the following values can be used: The values for the friction coefficient given under starting can be used to calculate the holding capacity of the mooring line, while the values given under sliding can be used to calculate the forces during deployment of the mooring line.
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