The research considers issues of using the results of ground-based laser scanning to ensure mechanical safety of tanks of а marine terminal. It is shown, that a significant amount of data necessary for tanks technical condition assessment is provided by three-dimensional real geometry models of a tank wall, created on ground-based laser scanning results. The article shows results of stress-strain state of tank wall structures analysis obtained from the actual geometry. It is highlighted that three-dimensional ground-based laser scanning model enables to carry out a comprehensive tank wall geometry analysis, as well as to fix the coordinates and parameters of local minima and maxima of structural deviations and to analyze the stress-strain state based on the finite element method. The data obtained from the model analysis indicate that reliability and safety of the studied structures are ensured despite the structural difference in tank designs. The article presents numerical parameters for stresses arising in tank wall with local geometric deviations, shows the way detected deviations affect the stress distribution within the tank wall. The obtained calculated stresses indicate that the safe level of stress-strain state during operation is typical for all examined tanks, regardless of the year of construction and the regulatory framework on the basis of which the design and construction were carried out.
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