Publications

PDF files

• Preliminary pages (PDF - 178 KB)
• Chapter 1 - Introduction (PDF - 212 KB)
• Chapter 2 - Hydrology model calibration (PDF - 315 KB)
• Chapter 3 - Erosion model calibration (PDF - 384 KB)
• Chapter 4 - Determination of parameters for SIBERIA (PDF - 523 KB)
• Chapter 5 - Assessment of proposed RUM landforms (PDF - 2757 KB)
• Chapter 6 - Conclusions and appendices (PDF - 444 KB)
• References (PDF - 128 KB)

Whole report

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• Application of a catchment evolution model to the prediction of long term erosion on the spoil heap at RUM: Initial analysis (PDF - 3857 KB)

About this document

The following abstract, executive summary or foreword/preface is reproduced here from the full report. The full report is available online in PDF or can be ordered in hard copy or CD from Publications, Supervising Scientist Division. See our publication ordering page for further instructions.

There is a need to assess the long-term stability of engineered landforms associated with the rehabilitation of Ranger Uranium Mine, Northern Territory, Australia, as it is a requirement that mill tailings must be contained for periods in excess of 1000 years. The geomorphic model, SIBERIA, is calibrated on hydrology and erosion data collected by a combination of monitoring and rainfall simulation experiments on the waste rock dumps of Ranger. Preliminary analysis of Ranger's preferred above-grade and below-grade rehabilitation options suggests that erosion of the order of 7-8 m will occur on the structure in a period of 1000 years. This depth of erosion may be sufficient to compromise the integrity of the containment. It is shown that SIBERIA has significant advantages over steady-state erosion models. Suggestions are made for the design that will enhance the stability of the structure and extend the structural life of the containment.