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December 4, 2019

Acceptable erosion rates for mine waste landform rehabilitation modelling in the Pilbara, Western Australia

Excerpts from abstract: “The Pilbara Rehabilitation Group, through four member companies—BHP, Fortescue Metals Group, Rio Tinto, and Roy Hill—initiated a project aimed at defining acceptable rates of erosion for rehabilitation landform design for the Pilbara region of Western Australia. As part of the project, a review of information relating to erosion rates on natural and man-made landforms was conducted. “

“…a guideline was developed to define acceptable erosion rates for use in the design of stable mine waste landforms in the Pilbara region. The guideline uses a risk-based approach, with erosion thresholds being linked to the waste material’s physical properties and the adverse environmental impacts that may result from landform failure.”



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