uSIng mIne tAiLiNGs tO FiLl PITs

  • Tailingsfo In-pit tailings storage

    2021-1-4 · In this type of situation, and where the mine is still in operation, most pits are 'topped off' with tailings to fill the depression with fresh tailings, thus increasing storage capacity. Another alternative is to take advantage of the natural beach slope

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  • Underground Mine Backfilling in Australia Using Paste ...

    2015-5-13 · Underground mine backfilling is a form of ground improvement that has to be carried out in the mine sites. The backfilling provides ground support and regional stability, thus facilitating ore removal from nearby regions. The large underground voids created by the ore removal are backfilled with the waste tailings in the form of paste fills, hydraulic fills, and

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  • (PDF) Underground Mining with Backfill | Tony Grice ...

    Grice A. 1998, The 2nd Annual Summit – Mine Tailings Disposal Systems, Brisbane Underground Mining With Ba ckfill By A Grice 1 Introduction include waste development rock, deslimed and whole mill tailings, quarried and crushed aggregate, and alluvial or aeolian Backfill is an increasingly important component of sand.

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  • Mining & Milling Open Pit [Guidelines] - MIGA

    1995-8-11 · using abandoned open pits for tailings disposal. LIQUID EFFLUENTS The following are guidelines for effluent discharged to receiving waters from tailings impoundments, mine drainage, sedimentation basins, sewage systems, and stormwater drainage. They do not apply to direct discharge of tailings to the marine environment. pH 6 to 9 BOD5 50 mg/l

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  • An Introduction to Oil Sands Pit Lakes

    2021-11-8 · Surface mining activities result in large pits that must be reclaimed. Some mine pits are filled with mine materials such as overburden or tailings to form a solid surface, which is then reclaimed. However, at many mines, insufficient material is available to fill one or more of the mine pits because some of the material that was mined may have ...

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  • Tailingsfo Backfill of Tailings to Underground Workings

    2021-1-4 · Tailings can be stored below ground in previous worked out voids. The tailings are generally mixed with a binder, usually cement, and then pumped underground to fill voids and help support an underground mine. For example a ‘room and pillar’ mining operation that uses backfill will be able to extract the insitu pillars containing ore.

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  • Hydraulic-fill construction and operation of a tailings ...

    1. As shown by the experience with operation of tailings ponds [5, 6] formed by the hydraulic-fill method with dispersed sludge discharge, the construction of stable toes in the tailings pond is ensured. 2. Underwater hydraulic-fill placement of tailings having more than 70% of particles smaller than 0.074 mm is not recommended. In exceptional cases, underwater hydraulic-fill

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  • Consolidation Modeling for Design of Complex In-pit ...

    2020-12-15 · years, in-pit Tailings Storage Facilities (TSFs) have garnered attention as one viable alternative. As the name suggests, these are storage facilities where an historic open pit is backfilled with mine tailings. This method is attractive to mine operators as open pits can often be filled at a fraction of the costs associated with designing ...

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  • (PDF) Methods for the disposal and storage of mine tailings

    2020-6-8 · A promising technology with alternative usage of tailings as construction and support materials in mine sites is tailings shotcrete (TSC), a mixture of

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  • Copper Tailing - an overview | ScienceDirect Topics

    5 Using mine tailings in blended systems for geopolymerization. Due to the relatively low reactivity of mine tailings, their use as a single geopolymerization precursor commonly leads to geopolymers having slow setting, low mechanical strength, and poor durability, strongly restricting their application.

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  • Research on the Parameters of Tailings Cemented Filling ...

    Taking the treatment project of tailings cemented filling for -out open pits in mined typical metal mines as background, using theoretical and numerical simulationanalysis research method, the cement-sand ratio and concentration of filling slurry, the total filling height, level

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  • Assessment of molybdenum mine tailings as filler in

    Mine tailings are currently dumped into open pits, pumped into tailing ponds, or used as backfill in underground mines [3]. The open-surface disposal of mine tailings poses a serious threat due to its negative impact on the environment; the large footprint tailings operations occupy on land; and the possible contamination of air, water, and ...

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  • (PDF) Underground Mining with Backfill | Tony Grice ...

    Grice A. 1998, The 2nd Annual Summit – Mine Tailings Disposal Systems, Brisbane Underground Mining With Ba ckfill By A Grice 1 Introduction include waste development rock, deslimed and whole mill tailings, quarried and crushed aggregate, and alluvial or aeolian Backfill is an increasingly important component of sand.

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  • Consolidation Modeling for Design of Complex In-pit ...

    2020-12-15 · years, in-pit Tailings Storage Facilities (TSFs) have garnered attention as one viable alternative. As the name suggests, these are storage facilities where an historic open pit is backfilled with mine tailings. This method is attractive to mine operators as open pits can often be filled at a fraction of the costs associated with designing ...

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  • Technical Report: Design and Evaluation of Tailings

    2016-3-27 · 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.

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  • Tailingsfo Backfill of Tailings to Underground Workings

    2021-1-4 · Tailings can be stored below ground in previous worked out voids. The tailings are generally mixed with a binder, usually cement, and then pumped underground to fill voids and help support an underground mine. For example a ‘room and pillar’ mining operation that uses backfill will be able to extract the insitu pillars containing ore.

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  • Australian Centre for Geomechanics | Conference Paper ...

    CAF/CRF relies on the materials available on the mine site and the additional costs of borrow pits or additional crushing adds significant cost to a material that is usually chosen due to low cost. This paper presents a case study of an

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  • State-of-the-Art Techniques for Backfilling Abandoned

    2009-6-9 · by in-mine or remote methods, and various point support methods that do not completely fill the mine void and are used for the protection of small areas of the land surface and surface structures. IMining engineer, Pittsburgh Research Center, U.S. Bureau of Mines, Pittsburgh, PA (now with U.S. Department of Energy, Germantown, MD).

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  • Huge B.C. mine has own style - Canadian Mining Journal

    Once mining is completed the pits will be allowed to fill with water and become lakes. Human element. HVC is the largest mine in British Columbia, with more than 900 employees. It is a leader in safety, winning the province’s John Ash award

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  • Tailings Fact Sheet - s24.q4cdn

    2020-1-3 · within lakes or pits. Tailings can be dewatered or modified in other ways prior to deposition. The current methods include: sites identify, assess and comply with laws, regulations, · Thickened tailings (which involves a process of dewatering to form a low solids content slurry); appropriate requirements.

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  • Research on the Parameters of Tailings Cemented Filling ...

    Taking the treatment project of tailings cemented filling for -out open pits in mined typical metal mines as background, using theoretical and numerical simulationanalysis research method, the cement-sand ratio and concentration of filling slurry, the total filling height, level

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  • In-pit Tailings Disposal at Langer Heinrich – Tailings ...

    2019-12-21 · The mine pits intersect two main aquifer systems, one at the surface and one at the base of the orebody/pits. The tailings storage methodology is full in-pit disposal in multiple TSFs for the life-of-mine. Continuity of the initial hydrogeological conditions is incorporated in the design by the use of the pervious

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  • Mining & Milling Open Pit [Guidelines] - MIGA

    1995-8-11 · using abandoned open pits for tailings disposal. LIQUID EFFLUENTS The following are guidelines for effluent discharged to receiving waters from tailings impoundments, mine drainage, sedimentation basins, sewage systems, and stormwater drainage. They do not apply to direct discharge of tailings to the marine environment. pH 6 to 9 BOD5 50 mg/l

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  • PIT LAKES AS AN END USE OF MINING: A REVIEW

    2021-12-29 · Keywords: Pit Lakes, Mining, Coal Mining, End Use of Mining, Mine Closure Plan. 1. Introduction Open-pit mining results in residual pits, overburden or waste rock piles, and sometimes tailings impoundments left on the landscape. Different kinds of mines produce pits with various physical, geochemical, and ecological characteristics.

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  • State-of-the-Art Techniques for Backfilling Abandoned

    2009-6-9 · by in-mine or remote methods, and various point support methods that do not completely fill the mine void and are used for the protection of small areas of the land surface and surface structures. IMining engineer, Pittsburgh Research Center, U.S. Bureau of Mines, Pittsburgh, PA (now with U.S. Department of Energy, Germantown, MD).

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  • (PDF) Evaluation of Tailings Dams Related to Waste Disposal

    Tailings dam is a surface retaining structure designed to store both tailings and mine water, with the aim of reclaiming the water for use in the processing plant as required. There are ...

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  • Huge B.C. mine has own style - Canadian Mining Journal

    Once mining is completed the pits will be allowed to fill with water and become lakes. Human element. HVC is the largest mine in British Columbia, with more than 900 employees. It is a leader in safety, winning the province’s John Ash award

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  • Tailings Fact Sheet - s24.q4cdn

    2020-1-3 · within lakes or pits. Tailings can be dewatered or modified in other ways prior to deposition. The current methods include: sites identify, assess and comply with laws, regulations, · Thickened tailings (which involves a process of dewatering to form a low solids content slurry); appropriate requirements.

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  • ASTER Processing for Mineral Exploration - ASL Env

    2015-8-6 · the minerals within the pits. Close up image samples of the alteration areas particularly on the mining pit and tailings pond are shown in Figure 4. The sericite-muscovite-illite-smectite alteration product is observed to be dominant in the open pits. Kaolinite appears to be evenly distributed throughout the mine and

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  • Paste Backfill Fundamentals

    2018-5-11 · Paste fill is prepared from tailings and float-sink reject aggregate from a lead-zinc concentrator. The first stage of tailings dewatering includes a hydrocyclone and a thickener, and the second stage is a vacuum belt filter. The

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