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ANCOLD recently held their Dam Operators Forum in Strathgordon Tasmania. The forum, the first since 2019 due to COVID restrictions, […]Read More
The ANCOLD Tailings Dam Operators Forum was successfully held in Orange, NSW from the 24th-26th August 2022. The participants where welcomed […]Read More
The Queensland dam safety regulator recently facilitated the annual Queensland dam owners and operator’s forum, affectionately labelled “QDOOF” by one […]Read More
ANCOLD published the Guidelines on Tailings Dams in May 2012. The Guidelines have been widely used both in Australia and internationally.
Since 2012, there have been a number of tragic tailings dam failures which have attracted world-wide attention. This revision is ANCOLD’s initial response to these events and other relevant matters.
Some of the important matters covered in this revision include reinforcement of the need for robust management practices, updates on earthquake considerations to align with the ANCOLD Guidelines for Design of Dams and Appurtenant Structures for Earthquake (2019) and additional information on static liquefaction.
In regard to management practices, the need for users of the Tailings Guidelines to also take account relevant aspects of the ANCOLD Guidelines on Dam Safety Management (2003) must be emphasised. ANCOLD considers it essential that these two guidelines be used together by practitioners seeking to manage tailings dam safety.
ANCOLD is pleased to continue its contributions to the promotion of tailings dam safety. The work has been prepared through a great deal of voluntary work by the Tailings Dam Sub-Committee of ANCOLD, led by Mr David Brett.
As with all ANCOLD guidelines, this guideline is not a design code or standard and has been produced for the guidance of experienced practitioners who are required to apply their own professional skill and judgement in its application. Users must keep abreast of developments in the management and design of tailings dams and take those developments into account when using these guidelines.
The guidelines will again be reviewed when knowledge and practice have developed to a point when an update is required. Accordingly, ANCOLD welcomes comments from users and other interested parties.Learn more
Dam safety requires a thorough understanding of the characteristics of the foundation and the materials that will be used, or have been used, for construction of a dam. These guidelines aim to improve practice to benefit dam owners through more effective and targeted investigations required to answer key questions about dams and their foundations.
Guidance is provided to owners, those preparing briefs for site investigations and for consultants carrying out the work. The Guidelines have been prepared to cover all types of water storage and tailings dams, both new and existing.
Common issues and objectives are described along with the steps required to undertake the investigations and appropriate methods.
These Guidelines are the culmination of extensive voluntary work by the Chairman, Emeritus Professor Robin Fell, and his Working Group. It is a significant development for dam engineering in Australia and will be a valuable resource.Learn more
The ANCOLD Guidelines on Risk Assessment were published in 2003. They have served the Australian dam community very well and are referenced internationally. Risk assessment is now the principal approach to manage engineering risks at water dams and now a developing practice for tailings dams.
These new guidelines on risk assessment replace the 2003 publication. They include updates to several sections taking account of developments in risk analysis methods and risk evaluation, from experience in applying those guidelines. As for ANCOLD (2003), these guidelines are directed to the practical application of risk assessment, as an aid to better dam safety management. Risk management is the end objective – risk assessment is a means to that end.
These guidelines have been produced by a Working Group of six members, all with significant experience with risk assessments for dams. A Reference Committee of sixteen members has been engaged throughout the development of the Guidelines.
The Working Group and Reference Committee include representatives of dam owners, consultants, universities, and regulators of dam safety. Six Australian states and the ACT were represented. Members and associates of ANCOLD have also provided input through risk workshops held with annual conferences.
Dam owners, decision-makers and analysts need to consider the current state of development of risk assessment in deciding how best to use and apply the process in reaching decisions on dam safety, having regard to their specific overall business risk management needs, and their community and legal responsibilities.
These guidelines also require consideration by dam safety regulators, who need to decide what part risk assessment can play in the discharge of their responsibilities. Deciding on the tolerability of risk is one of the functions of regulators.
ANCOLD continues to believe that the use and further development of risk assessment using studies of the traditional engineering standards-based approach as an input, as proposed in these guidelines, offers the potential for significantly improved dam safety management.
Risk assessment methods are continuously developing. ANCOLD recognizes that detailed aspects of these guidelines will be overtaken by developments within a few years and urges practitioners to keep abreast of new knowledge. Nevertheless, the framework and generic guidelines in this publication are essentially as detailed in ANCOLD (2003) and are expected to remain valid for many years.Learn more