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Encyclopedia of Ocean Engineering pp 1–6Cite as

Catenary Anchor Leg Mooring

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Synonyms

Catenary mooring; Mooring system; Single anchor leg mooring; Single point mooring; Taut mooring

Definition

A typical CALM system consists of the mooring buoy, chain and anchor system, mooring assemblies, and floating and submarine hose strings. The buoy body provides the necessary buoyancy to keep the system afloat. A rotating deck or turntable is mounted on top of the buoy body to transmit mooring force from the mooring assemblies through the buoy to the anchor chains. The CALM anchoring system consists of 4–8 anchor chains extending from the buoy body radially out and terminating at firmly embedded anchors or anchor piles (Luo et al. 2015).

Scientific Fundamentals

System Composition

The CALM system consists of a large buoy, which supports a number of catenary chain legs anchored to the sea floor (Fig. 1). Riser systems or flow lines that emerge from the sea floor are attached to the underside of the CALM buoy. Some of the systems use a hawser, typically a synthetic rope,...

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References

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Author information

Authors and Affiliations

  1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin, China

    Liping Sun

Authors
  1. Liping Sun
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Corresponding author

Correspondence to Liping Sun .

Editor information

Editors and Affiliations

  1. Hadal Science and Technology Research Center, Shanghai Ocean University, Shanghai, China

    Weicheng Cui

  2. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University , Shanghai, China

    Shixiao Fu

  3. School of Marine Science and Technology, Newcastle University , Newcastle, UK

    Zhiqiang Hu

Section Editor information

  1. Harbin Engineering University, Harbin, China

    Liping Sun

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Cite this entry

Sun, L. (2019). Catenary Anchor Leg Mooring. In: Cui, W., Fu, S., Hu, Z. (eds) Encyclopedia of Ocean Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-6963-5_141-1

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  • DOI: https://doi.org/10.1007/978-981-10-6963-5_141-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-6963-5

  • Online ISBN: 978-981-10-6963-5

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

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