| УДК 622.17:004.923 | DOI: 10.21440/0536-1028-2020-7-56-62 | Download |
Introduction. The research aims to study concentrating mill tailings dam protecting dike soil
consolidation on the example of a mining enterprise of the Kola Peninsula.
Research methodology. The research is based on 4D modeling (taking into account a time factor) using
PLAXIS software solution. The computer hydro-geomechanical 3D model of the concentrating mill
tailings dam fragment has been developed allowing to investigate both geomechanical and fi ltration
processes, and their collateral infl uence on protecting dike and alluvial beach soil consolidation.
The following options of tailings dam hydro-geomechanical condition development are considered:
a reference state at the current parameters of operation, increase in the level of water-saturated tail
deposits and the subsequent consolidation of bulk and alluvial soils within 1, 2, 3, 5, 10, 15, 20, 30, 50
and 80 days.
Research results and analysis. The received results have been analyzed on the dynamics of the tailings
dam hydro-geomechanical condition therefore revealing its behavior in time. It has been established
that the nature of bulk and alluvial soils consolidation is identical, however, differs signifi cantly in terms
of quantity.
Conclusions. Dependences of bulk and alluvial soils consolidation of the tailings dam hydraulic
engineering construction on consolidation time are established providing a scientifi c and technical
basis for its mechanical state and stability assessment, and for engineering recommendations about the
terms of the following stage of dams building.
Key words: tailings storage; hydro-geomechanical 3D model; 4D modeling; soil; consolidation;
sustainability.
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