(PDF) Dam Safety: The Question of Tailings Dams
Tailings'' Dams are mining waste impounding structures. They differ from conventional dams in purpose, design and operation. Percentage wise their failures are higher and posing considerably more
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Tailings'' Dams are mining waste impounding structures. They differ from conventional dams in purpose, design and operation. Percentage wise their failures are higher and posing considerably more
Water Cover Closure Design for Tailings Dams State of the Art Report financers and Swedish mining companies has directed the project and especially take place in the tailings and an example of this is acid mine drainage (AMD), which result in acidic leachate and leaching of metals from the tailings.
Tailings dam design should be based on a complete understanding of the foundation geology and soils, through comprehensive site investigations, and designed for the full life cycle of the mine, from the initial stages of construction, to mining operations, and ultimately decommissioning and
same source as the existing tailings dam, its design is based on material properties derived from insitu and laboratory testing of the tailings on the existing tailings dam. The design boundary conditions have been kept similar to those for the existing tailings dam, such as a maximum rate of rise (RoR) of m/a.
The design of the tailings dam cannot be decoupled with the tailingsimpoundment The physical and chemical properties of the tailings must beaccounted for in the design For example high sulphide content tailings need tobe stored to minimize the potential for oxidation and acid drainage. Technology of Dams and Tailings Disposal Instituto
Tailings dams may be built across river valleys, or as curved or multisided dam walls on valley sides, this latter design facilitating drainage. On flat, or gently sloping ground, lagoons are built with walls on all sides of the impoundment.
Rather, the dam''s failure was sudden and abrupt, which was the result of high shear stresses in the downstream slope of the dam and the brittle, undrained response of the tailings,quot; the report said. The design and construction of the failed dam were major factors contributing to a quot;dam that was steep with a lack of sufficient drainage
The deadly collapse of a tailings dam last November at the Samarco mine, owned by Vale SA and BHP Billiton, was caused by drainage and design flaws, a report into Brazil''s worstever environmental
engineering design of tailings dams in other mining industry sectors, for both stability and environmental performance. For instance, experience gained with leach pad liners is being transferred to linings for tailings ponds, and the use of synthetic lining materials is growing (although use of liners is still far from being the industry norm).
#0183;#32;Tailings'' Dams are mining waste impounding structures. They differ from conventional dams in purpose, design and operation. Percentage wise their failures are higher and posing considerably more
In her own case study presentation on a lined tailings dam at a South African platinum mine (Impalas Marula dam), Spies highlighted the complexities introduced by the liner requirement and how good drainage design and quality assurance were an
A tailings dam is typically an earthfill embankment dam used to store byproducts of mining operations after separating the ore from the gangue. Tailings can be liquid, solid, or a slurry of fine particles, and are usually highly toxic and potentially radioactive. Solid tailings are often used as part of the structure itself. Tailings dams rank among the largest engineered structures on earth. The Syncrude Mildred Lake
Get this from a library! Tailings dams design of drainage : review and recommendations = Barrages de st#233;riles conception du drainage. [International Commission on Large Dams;]
Rather, the dam''s failure was sudden and abrupt, which was the result of high shear stresses in the downstream slope of the dam and the brittle, undrained response of the tailings,quot; the report said. The design and construction of the failed dam were major factors contributing to a quot;dam that was steep with a lack of sufficient drainage
5 Tailings Dam Questions and Answers assessmentsquot;wouldquot;havetoquot;beconductedquot;followingquot;thedamquot;breachtodeterminequot;ifquot;removalquot;ofquot;thequot; tailingsquot;fromquot;thequot;waterwaysquot;wouldquot;bequot;necessary,quot;orifthequot;tailingsquot;couldquot;bequot;remediatedquot;inquot;place.quot;
Bulletin 103 Tailings dams and environment Review and recommendations (1996) Bulletin 101 Tailings dams. Transport. Placement. Decantation Review and recommendations (1995) Bulletin 98 Tailings dams and seismicity Review and recommendations (1995) Bulletin 97 Tailings dams Design of drainage
2008 was due to failure of the drainage culvert under the tailings . tailings pond as well as for the design of dam of a mining waste dam, only a part of tailings and polluted
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