One of the most important tasks of research on the shelf is the evaluation of the sustainability of marine facilities within the subaqueous engineering-geological structures [32]. Among the geological hazards that may pose a threat of loss of stability of shelf platforms, pipelines and other objects underwater production are landslides, gravity flows, mud volcanic eruptions, liquefaction of soil under dynamic loads, etc. In order to prevent damage subaqueous techno sphere must perform assessment of geological hazards and to present the main results of this assessment in the form of predictive engineering-geological maps (maps of the geological hazard). [31]

To date, most of the developed approach the forecast regionalization of the territory by the degree of geological hazards are:

  • method of estimating the parameters determining the intensity and destructive power of geological processes in the study area (areal damaging areas, frequency, speed the development process, etc.);

  • assessment in concordance with natural and man-made factors-framwork influencing on the development of the processes of with segregation of some taxon on a score system;

  • a method for prediction of geodynamic mapping (calculation of the geodynamic potential) on the direct manifestation of the processes and quantitative assessment the weight of factors affecting on the geohazards;

  • expert assessment of the hazards of geological processes, phenomena and geological objects to the buildings and structures.

The basic principles of mapping marine geological hazards along the route of the pipeline "Dzhubga-Lazarevskoye-Sochi" (DLS) (commissioned in 2011) is expert assessment.

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