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  • Evaluation of mine tailings’ potential as supplementary

    Feb 01, 2020· Since the feasibility evaluation focused on the chemical, mineralogical and physical properties of mine tailings as SCM, the evaluation lacks the environmental suitability and potential deleterious effects on durability properties of mine tailings incorporated in cement-based materials. The waste material generated by extractive industry of



  • Evaluation of liquefaction in tailings and mine waste: an

    Tailings & mine waste Flow Liquefaction is the one of the main design issues for most tailings and mine waste structures Flow liquefaction –Evaluation Steps Evaluation Sequence: 1. Evaluate susceptibility for strength loss 2. Evaluate stability using post-earthquake shear

  • Geotechnical Properties of Mine Tailings Journal of

    The engineering properties of tailings are important for the safety evaluation and engineering design of tailing dams. In the present study, laboratory experiments were performed to investigate the geotechnical properties of four different tailings, including two iron tailings (coarse and fine) and two copper tailings (coarse and fine).

  • (PDF) Evaluation of a 20–40 year old gold mine tailings

    Mine Closure 2009, Perth, Australia 129 Evaluation of a 20–40 year old gold mine tailings rehabilitation project on the Witwatersrand, South Africa A.S. Rossouw et al. (Dye et al., 2008). For nutrient-cycling on Fleurhof, litter, perennial tussock grass and woody plants

  • Technical Report: Design and Evaluation of Tailings Dams

    tailings in impoundments or free-standing piles, backfilling underground mine workings and open-pits, subaqueous disposal, and the most common method, the disposal of tailings slurry in impoundments. Modern tailings impoundments are engineered structures for permanently disposing of the fine-grained waste from mining and milling operations.

  • Evaluation of a Single-Layer Desulfurised Tailings Cover

    Evaluation of a Single-Layer Desulfurised Tailings Cover B Sjoberg Dobchuk1,G W Wilson2and M Aubertin3 ABSTRACT A desulfurised tailings cover was installed at the Detour Lake Mine in Ontario, Canada, to reduce oxygen penetration into the underlying sulfidic tailings. The cover ranges from one to 1.5 m in thickness and was

  • Tailings and Mine Waste Management Tetra Tech

    the effects of wastes associated with mining operations and metal-refining sites. Our staff has performed removal actions, remedial design, construction management, and inspection of numerous mine tailings and waste rock closures for projects worldwide. The projects have included closure-in-place, consolidation, and capping of tailings and

  • Life cycle cost estimation and environmental valuation of

    Jan 01, 2017· The authors used NPV to compare each option for the disposal of coal mine tailings and, subsequently, to determine the most cost-effective strategy for the mine site. 2.2.2. Environmental valuation method Valuation. A mining project evaluation is not only based on its financial profitability but also its sustainable development

  • Tailings Wikipedia

    Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.. The extraction of minerals from ore can be done two ways: placer mining, which uses water

  • (PDF) Evaluation of a 20–40 year old gold mine tailings

    Mine Closure 2009, Perth, Australia 129 Evaluation of a 20–40 year old gold mine tailings rehabilitation project on the Witwatersrand, South Africa A.S. Rossouw et al. (Dye et al., 2008). For nutrient-cycling on Fleurhof, litter, perennial tussock grass and woody plants tended to make the largest contribution (Figure 3c).

  • Tartan Lake Gold Mine Site and Tailings Evaluation

    Oct 10, 2019· Tartan Lake Gold Mine Site and Tailings Evaluation TORONTO, Oct. 10, 2019 (GLOBE NEWSWIRE) -- Satori Resources Inc. (TSXV:BUD) (“Satori” or the “Company”) announces that Global Resource

  • Monarch finds promising results from Wasamac tailings

    TSX-listed Monarch Gold has announced the results of a geochemical assessment done on ore from its Wasamac deposit, in Quebec, to determine the characteristics of its tailings. Monarch reports

  • Assessing Risks of Mine Tailing Dam Failures

    thousand tailings impoundments in the U.S. alone, associated with active non-coal mining and tens of thousands of inactive or abandoned TSFs (EPA, 1994). In Hungary, more than 1,000 inactive mining waste impoundments have been identified (Inventory of closed mine waste facilities for Hungary, 2012), close to 1,900 in the United Kingdom (Potter &

  • Tailings Dams US Minneapolis Itasca Consulting Group, Inc.

    development of numerical models that simulate the continuous construction nature of mine tailings dams, analyses to represent the changes in pore pressure brought about by tailings consolidation and fluid flow over time, evaluation of static safety factors using the shear strength reduction technique,

  • Evaluation of soil intervention values in mine tailings in

    The aim of this work is to show a methodological proposal for the analysis of soil intervention values in mine tailings in order to determine the intervention requirements in the commune of Andacollo in northern Chile. The purpose of this analysis is to guide the intervention policies of both private and public organizations. The evaluation method is based on the Dutch legislation.

  • Expande BHP Tailings Challenge

    Tailings is a common by-product of the mineral recovery process. In hard rock mining, the rock containing the ore is pulverized in a series of crushing and grinding processes in order to extract the mineral. This process is also known as comminution, i.e., grinding the ore into fine particles.

  • Management of Tailings Facilities Home The Mining

    CHANGES IN VERSION 3.1 Version 3.1 is an update to the third edition of A Guide to the Management of Tailings Facilities (the Tailings Guide), released in November 2017, to reflect the second edition of MAC’s Developing an Operation, Maintenance, and Surveillance Manual for Tailings and Water Management Facilities (the OMS Guide), released at the same

  • Responsible mining? Minnesota has a long way to go. MinnPost

    Aug 21, 2020· There must be an independent and objective third-party evaluation of all aspects of design, construction, operation and maintenance of tailings and other mine

  • APPENDIX F1 Tailings storage facility design report

    5.4 Further Evaluation of Alternatives 39 5.4.1 Upstream raising using Tailings 39 5.4.2 Mine rock center line raise embankment 39 5.4.3 Central Discharge Tailings Storage Facility (CTDSF) 40 5.4.4 Paste Tailings 41 5.4.5 Preliminary sizing of alternatives 42 5.5 Selection of

  • From Tailings to Treasure? Miners Make Advancing Mining

    Mine sites typically manage tailings by constructing ponds secured by dams. According to the web site miningfacts.org, another strategy is to produce thickened tailings, which are pressed or have chemicals added to remove excess water. Thickened tailings can be mixed with cement and used in construction or as backfill in underground mines.

  • 2020 Tailings and Mine Waste Conference Technical Paper

    Evaluation of shear wave velocity and void ratio in mine tailings using the Improving behavior of gold mine tailings using microbes compared with adding cement, for closure of in-pit tailings Cifuentes Hernan The University of Queensland Glass from tailings Nelson Priscilla P Colorado School of Mines

  • Minerals Free Full-Text Evaluation of Viscosity

    In this study, the particle size distribution and chemical composition of gold mine tailings were examined experimentally. A series of viscosity and uniaxial compressive strength (UCS) tests were used to study the relations between the viscosity of cemented tailings backfill (CTB) slurry, the solid content (SD), and the cement-to-tailings ratio (c/t).

  • Comparison of Environmental Impacts of Deep-sea Tailings

    Dec 02, 2019· Evaluation of mine tailings effects on a benthic marine in fauna community over 29 years. Marine Environment Research, 53, 481–519. CAS Article Google Scholar Burd, B., Macdonald, R., & Boyd, J. (2000). Punctuated recovery of sediments and benthic infauna: a 19-year study of tailings deposition in a British Columbia fjord.