Application of FEM/DEM-DFN (ELFEN) Modelling
in Rock Engineering
Применение метода конечно-граничных элементов для решения геомеханических задач
rock mass fracturing due to stress redistribution; block caving - cave initiation, cave propagation, crown pillar collapse surface subsidence development; block cave - open pit interaction, rock bridge failure, slope stability
Influence of geological structures on the development of surface subsidence, contours illustrate vertical displacements 10cm(red)/1m(blue).
Contrasting with the animation given below, note the role of joint orientation in initial cave propagation and the governing role of a fault in subsidence development.
LARGE OPEN PIT - BLOCK CAVE INTERACTION
Illustration of block caving induced open pit slope instability: failure in rock bridges of non-coplanar step path joints dipping into the cave. more info
Illustration of a joint controlled slope failure: rock fracturing initiation, failure surface formation, collapse and debris run-off.
further information on FEM/DEM modelling is provided in RESEARCH and MASSMIN pages
Disclaimer: "all models are wrong but some are useful" G.Box