Africa: Modikwa TSF Geotechnical Study

A comprehensive field investigation programme was conducted using novel techniques to support further geotechnical characterisation of the tailings and foundation materials of the tailings storage facility (TSF). The investigation was supported by extensive laboratory testing, conducted on-site and at commercial laboratories. The geotechnical characterisation was completed through a detailed evaluation and analysis of all in situ data and laboratory results. The quantum of data collected allowed for significant advancement in the understanding of the behaviour and the state of the tailings and foundation clay, and enabled bracketing of updated material parameters used in the stability assessment, increasing confidence in the results.

By SRK South Africa