Guidelines on Strengthening and Raising Concrete Gravity Dams (1992)

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  Guidelines

  Guidelines on Selection of Acceptable Flood Capacity for Dams (2000)

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  The application of risk assessment involves a major philosophical addition to, and enhancement of the deterministic standards developed over many years for appropriate safety of dams. These guidelines are issued to provide more appropriate and consistent guidance within a risk process, for dam safety evaluation under floods. In applying them, it must be remembered that they are guidelines only to what is considered current acceptable practice and allow owners and practitioners flexibility to exercise professional judgment in all aspects. Indeed, without the application of such judgment, the procedures themselves could lead to results that have serious shortcomings.

  This is a rapidly developing area with ongoing research in many related aspects. In view of this ANCOLD will review the guidelines periodically and, to that end, seek comments from users at every opportunity.

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  Guidelines

  Guidelines on Risk Assessment (2003)

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  In Australia we have a very diverse portfolio of dams, some regarded as being designed and constructed before there was a good understanding of the loading conditions that could apply.  Sometimes there is limited knowledge of the actual details of construction and always there is a desire to ensure that the community’s resources are properly applied.  The difficulty facing those who allocate funds for the benefit of the community measure the cost against the benefit achieved and to compare that with opportunities available.

  Risk Assessment gives us the tools to estimate the likelihood of a circumstance occurring and of its consequences. It also gives us the tools to estimate what these will be after any improvement.  These tools are diverse and can be imprecise.  As time goes on our methods will improve but chance and circumstance will always be with us.  But, if we use consistent methods, we will generally be able to rank the possible outcomes and compare them, in scale, with others.

  ANCOLD is aware of the diversity of dams and the circumstance associated with them and offers this document merely as an indicator of the approach that may be taken.  Nevertheless we hope that its adoption will lead to greater comparability between individual workers.

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  Guidelines For Geotechnical Investigations of Dams, Their Foundations And Appurtenant Structures (May 2020)

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  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.

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  Guidelines

  Guidelines for Dam Instrumentation and Monitoring Systems (1983)

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  As this current guideline contains useful information, the ANCOLD Executive decided to reprint a small quantity which are now available for purchase.

  The Watching Brief Guidelines for Dam Instrumentation and Monitoring Systems (1983), established following the Dam Instrumentation Workshop in Sydney, continues to scan for information and topical developments related to the monitoring of dams using a range of instrumentation techniques. A position paper outlining the current status for the Executive is planned for 2013 and will provide a mechanism to move forward on the need for an updated guideline.

  Members wishing to contribute papers, views, or information to the watching brief should contact Chris Topham via the ANCOLD secretariat  [email protected]ancold.org.au

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  Guidelines on the Environmental Management of Dams (2001)

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