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David Brett, Anton van Velden and Phil Soden

The Main Creek Tailings Dam is a 60m high earth and rockfill dam constructed during the early 1980’s to store tailings from the Savage River Mine on Tasmania’s west coast. The dam served the mine well for nearly 20 years, storing around 32 million m3 of tailings, but has required raising due to the expanded mining plans of the current operators, Australian Bulk Minerals (ABM). ABM believe that the mine could require a further 60 million m3 of tailings storage over the next twenty years at increased production levels. This could be stored in the Main Creek Dam by raising it by around 35m. In the medium term this scale of raising would be feasible using waste rock product from ongoing mining but in the short term of several years an interim solution would be required. The feasibility of upstream construction on the tailings beach was reviewed and found feasible for
a maximum 12m in 4 lifts.

Of critical concern were

  • The strength of tailings materials in the wet environment
  • The seismicity of the site and potential for liquefaction, and
  • The practicality of construction without failing the material

The paper discusses the investigation and design phases of the dam and describes the issues arising during construction recently completed over the period January to April 2002. The use of pore pressure, shear strength changes and tailings beach movement monitoring to control construction is discussed.

Now showing all 7 search results

  • $15.00
    2002  Papers

    2002 – Interim Raising of Main Creek Tailings Dam by Upstream Construction

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  • $15.00
    2015  Papers

    2015 – Abracadabra – the Disappearing Tailings Dam

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  • $15.00
    2019  Papers

    2019 – Tailings Dam Guidelines: Adopting International Direction

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  • $15.00
    2008  Papers

    2008 – “When is a dam not a dam?”- Design of mine tailings storage facilities for closure

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  • $15.00
    2009  Papers

    2009 – Training of Operators = Tailings Dam Safety

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  • $15.00
    2009  Papers

    2009 – ANCOLD Guidelines on Planning, Design and Operation of Tailings Dams- Report on Progress of Review and Update

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  • $15.00
    2011  Papers

    2011 – Blackman Dam Failure Emergency Management

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