KINEMATIC FEATURES OF GROUND IRREVERSIBLE MOVEMENT DURING A LOCAL LANDSLIDE

Abstract

The landslides expose infrastructure to the danger and cause harm to the environment. The most popular and systematic monitoring of the landslides is produced with geodetic, photogrammetric, and synthetic aperture radar periodic measurement. Analysis of ground surface displacements, velocities, and acceleration provides valuable information for prediction of a landslide evolution. The aim of this paper was to find another kinematic feature of ground movement that would expand potentialities of the forecasting. I used complex methodology that uses Cundall concept that includes cyclic evolvement of Newton second law, non-associated law of plasticity, Mohr-Coulomb model, which has been modified by accounting tensile limit of the ground, and finite difference method. Such approach unveiled short-living dissipative structures in the sliding ground which replace each other in time and space. Fields of ground irreversible incremental movement form different patterns of vector’s mosaic that depends on the dynamics of unbalanced forces in the sliding ground. The dissipative structures take ground mass awayfrom the plain strain state and evolve new degrees of freedom that facilitate dilatation of the ground and progress of sliding. Control of the dissipative structures has been proposed as new concept that has practical value for improvement of technologies for stabilization of ground slopes.