Analysis of the ice destruction mechanism in the interaction of level ice fields with sloping profile structures

摘要

This article describes the further development of the author's method ofice loads dynamic calculation, outlined earlier in the articles (Bolshevand Frolov, 2019, 2020). Ice loads are calculated using mathematicalsimulations of the dynamics of ice and structures in time domain.Special model tasks of ice destruction are considered. The mechanismsof ice failure, which may include bending and rubbling, are analyzed inthe process of modelling. The article considers the conditions whendifferent modes of failure become predominant and provides simulationexamples illustrating interaction of level ice with a conical barrier. Forsome of the considered structures and ice fields boundary values ofparameters are found at which the prevailing failure mechanismchanges.This article also presents a comparison of ice loads on inclined profilestructures obtained in various experimental studies and the author'scalculation method. A good agreement between the experimental andcalculated data is shown.