Sammendrag
The paper describes the ongoing research at NGI on "sustainable mine tailings". The project aims to increase the safety
of tailings dams, improve the geomechanical knowledge on tailings, implement InSAR data in early warning systems and develop a
risk assessment and management approach for tailings dams. The research focuses on (1) the analysis of the chemical and
geomechanical characteristics of tailings and the possibility of using waste materials as water-retention material for cover solutions
with capillary barrier effect ; (2) the characterization of the chemical and geotechnical properties of bauxite residue, especially
mineralogy, alkalinity, sodicity and leaching, and permeability and effect of sand amendment; (3) numerical modelling techniques
for improving the prediction of static liquefaction; (4) the use of InSAR to monitor the displacement of tailings dams and for
discerning failure; (5) a risk assessment approach for tailings dams and the use of statistics on tailings dam failures. Runout models
to predict the propagation of failure masses and assess the potential consequences of a failure were also investigated,
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