Publication | Closed Access
Instability of seabed and pipes induced by NGH dissociation
13
Citations
0
References
2010
Year
Unknown Venue
Offshore GeotechnicsEngineeringMechanical EngineeringGeophysical FlowGeotechnical EngineeringGeotechnical ProblemDissociation ScalePhysical ModelingPolar EngineersHydraulic EngineeringHydrodynamic StabilityMarine HydrodynamicsSoftware AbquasOffshore SystemsEngineering GeologySediment TransportOcean EngineeringCivil EngineeringGeomechanicsStructural MechanicsPetroleum EngineeringNgh Dissociation
Numerical modeling is processed by using of the software ABQUAS to analyze the displacement's distribution and evolution of the pipes and surrounding seabed after dissociation of NGH. It is shown that dissociation scale, thickness of over-layer, elastic parameters of seabed before and after dissociation of NGH have crucial impacts on the deformation of pipes and seabed. In practical engineering design, the dissociation scale and the strength of seabed after dissociation of NGH should be controlled strictly to guarantee the safety of pipes and seabed. Copyright © 2010 by The International Society of Offshore and Polar Engineers (ISOPE).