Optimal Route Selection of Offshore Pipelines Subjected to Submarine Landslides

Background: Offshore lifelines ( i.e ., pipelines and cables) are usually vulnerable to seabed deformations induced by earthquake-triggered geohazards, such as submarine landslides, soil liquefaction, tectonic faulting. Since the complete avoidance of all areas characterized offshore geohazards is not always techno-economically feasible, optimal lifeline route selection deemed necessary for safety serviceability every infrastructure, in order minimize risk severe environmental economic consequences. Objective: The current study presents a decision-support tool design high-pressure gas pipelines, capable performing: (a) assessment landslides along possible pipeline impact force landslide width), (b) their potential on strains), (c) selection. Methods: advanced capabilities GIS successfully combined with efficient (semi-)analytical models that realistically assess response when subjected axial or oblique loading conditions due landslide. Results: efficiency smart presented through case an crossing potentially unstable slopes -under static seismic conditions- Adriatic Sea. Five alternative routings proposed based adopted criteria seismically zones steep inclination. Conclusion: Provided sufficient reliable data available, developed can be efficiently used deriving pipeline.