A Meso-Scale Column Test for Co-Mixed Tailings and Waste Rock

• Author(s) / Creator(s)

  • Wickland, B.
  • Wilson, G. W.
  • Johnson, G.

• The settlement and drainage behaviour of co-mix, or mixtures of waste rock and tailings, are examined in a column study. Three co-mix profiles were observed for settlement, drainage, and pore water pressure response. A fourth profile with waste rock and no tailings was also observed for settlement. Co-mix consolidated faster than predictions for tailings alone, and maintained a saturated void space relative to waste rock alone. Practical benefits of co-mix as a waste disposal technology may include faster time to consolidation than tailings, a reduction in total settlement of placed material compared to tailings alone, and a reduction in acid drainage by limiting the flow of water and oxygen through maintenance of a saturated void space.

• Date created

  2003

• Subjects / Keywords

  • Underground
  • Tailings
  • Regulations
  • Covers
  • Prediction
  • Non-mining
  • Waste Rock
  • Surface Flux Modelling
  • Coal Characterisation/Assessment
  • Pit Lakes
  • Treatment

• Type of Item

  Article (Published)

• DOI

  https://doi.org/10.7939/r3-khmr-jx36

• License

  Use of this product is restricted to current faculty, staff, and students of the University. It is the responsibility of each user to ensure that he or she uses this product for individual, non-commercial educational or research purposes only, and does not systematically download or retain substantial portions of information. Users may not reproduce or redistribute unprocessed/raw data portions of the data to any third party, or otherwise engage in the systematic retransmission or commercialization of the data.