On-bottom Stability

Submarine pipelines stability is very important to ensure that pipelines subjected to environmental loadings stay acceptably stable resting on/buried under seabed. In other words, pipelines submerged weight must be more than hydrodynamic force to avoid flotation or lateral movements.

******************************DNV-RP-F109******************************

Design Methods:

• Vertical stability in water
• Vertical stability in/on soil
• Dynamic lateral stability analysis
• Generalize lateral stability method
• Absolute lateral stability static method

Download:
DNV RP F109

******************************DNV-RP-E305******************************

Design Methods:

• Dynamic method ( dynamic simulation of pipelines under the action of waves and current)
• Generalized method (use of a set of non-dimensional parameters to generalize Dynamic Analysis Results)
• Simplified Static Stability method (quasi-static equilibrium approach) SUITABLE for most of the design cases
  

Download:
ON-BOTTOM STABILITY ANALYSIS AND DESIGN OF SUBMARINE PIPELINE : Mohd. Ridza (THESIS)

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