Mechanical Analysis of Roof Subsidence Based on ... Sažetak To study the influence of the rheological properties of backfill materials on strata movement during solid backfill mining, Poyting-Thomson model was selected as the rheological model for the backfill materials based on their experimentally derived rheological properties. Rheology Testing - Intertek Analysis of a wide range of fluids and solids using rheological techniques undertaken by our experts. Rheology research laboratories test polymeric materials for rheological properties. Rheological characterisation of materials includes polymers, liquids, adhesives and other samples using a wide range of shear and extensional conditions. Design and Characterization of Underground Paste Backfill ... This chapter describes the design and characterization of cemented paste backfill considered for re-filling underground mined-out stopes. The mixture design and optimization of CPB are based on laboratory- and paste plant-scale testing. Design and Characterization of Underground Paste Backfill ... This chapter describes the design and characterization of cemented paste backfill considered for re-filling underground mined-out stopes. The mixture design and optimization of CPB are based on laboratory- and paste plant-scale testing.    Read More

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  • PARAMETERS OF TRANSPORT OF NON-NEWTONIAN .

    At IRGO (Institute for Mining, Geotechnology and Environment) we have developed our own tube- or extrusion rheometer which is enabling us to establish the rheological properties of suspensions on the basis of which we can dimension the tubes for transportation of concentrated suspensions in the indrustrial mining.

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  • EXTENDED ABSTRACT - fenix.tecnico.ulisboa.pt

    distances underground. The rheological characterisation of paste backfill is a difficult and complex task, given the high number of variable factors. So far, no standard procedures and/or methods have been established for measuring the rheological properties of paste backfill, in particular the yield stress.

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    Figure 2: Examples of hydraulic backfill in open stope (Potvin et al. Hydraulic backfill material is poured inside the stope from fill hole in the crown of stope. but their colloidal fraction (finer than 2 micrometer) is negligible. and controlling of backfill material properties. 2006). free water is accumulated on top of the backfill.

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    MasterRoc MF 308 admixture is formulated to improve the rheological behavior and in-situ properties of placed backfill. MasterRoc MF 308 admixture offers superior stability by increasing resistance to segregation, while acting as a pumping aid and facilitating placement with significant improvement in the homogeneity of the placed fill.

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  • Investigation Of The Use Of Mine Tailings For Unpaved Road ...

    Mahmood, Ali A. and Mulligan, Catherine N. (2010) "Investigation Of The Use Of Mine Tailings For Unpaved Road Base," Proceedings of the Annual International Conference on Soils, Sediments, Water and Energy : Vol. 12, Article 11.

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  • Rheology Testing - Intertek

    Analysis of a wide range of fluids and solids using rheological techniques undertaken by our experts. Rheology research laboratories test polymeric materials for rheological properties. Rheological characterisation of materials includes polymers, liquids, adhesives and other samples using a wide range of shear and extensional conditions.

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  • Presents: Mine Backfill Design & Operation Course

    Stephen Wilson Director, (Mining) Engineer, adds international expertise from mining in Russia and the integration of tailings management and backfill technologies. Dr. Matthew Treinen (Mechanical/Civil) Engineer, specializes in backfill system hydraulics, reticulation system design and rheological characterization. Presenters

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  • Mechanical Analysis of Roof Subsidence Based on ...

    as the rheological model for the backfill materials based on their experimentally derived rheological properties. By regarding the roof as a thin elastic plate, a rheological mechanical model of the roof when using solid backfill mining was established.

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    : 270Journal of Mining Science, Vol. 45, No. 3, 2009 MINERAL MINING TECHNOLOGY DEVELOPMENT OF THE LONG-DISTANCE PIPELINE TRANSPORT FOR BACKFILL MIXES IN TERMS OF OKTYABRSKY MINE А. P. Tapsiev, A. N. Anushenkov, V. A. Uskov, Yu. V. Artemenko, and B. Z. Pliev* UDC 622.273 The characteristics and development prospects of backfilling in deep mines are .

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    THICKENED TAILINGS: RHEOLOGICAL AND GEOTECHNICAL CHARACTERISTICS JAMIE SPIERS Methods for Treatment of Mine Tailings 16 -17 November 2010. Contents Thickened tailings – Key Drivers and Processes ... small change in slurry properties could result in a large change in rheology.

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  • Backfilling in the underground mining industry - SlideShare

    Backfilling in the underground mining industry 1. BACKFILLING IN THE UNDERGROUND MINING INDUSTRY. By Ray Brown. I have often been asked by people outside the mining industry what backfilling is and why it is necessary to the industry.

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  • Design and Application of Underground Mine Paste Backfill ...

    Geotech Geol Eng (2008) 26:147–174 DOI 10.1007/s10706-007-9154-3 ORIGINAL PAPER Design and Application of Underground Mine Paste Backfill Technology Tikov Belem Æ Mostafa Benzaazoua Received: 15 September 2005 / Accepted: 22 August 2007 / Published online: 13 October 2007 Springer Science+Business Media B.V. 2007 Abstract This paper reviews the design and appli- reticulation.

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  • Mine backfill solutions for underground construction - BASF

    BASF takes a scientific approach to this challenge that can help mining companies understand and run backfill operations at lower risks and lower costs. With over 30 years of experience in backfill, BASF has been a pioneer in creating an admixture market for Backfill in the mining industry.

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    SUMMARY 1.1 Properties and analytical procedures. Arsenic is a metalloid widely distributed in the earth's crust and present at an average concentration of 2 mg/kg.

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  • Determining the Rheological Properties of Mine Tailings

    Tailings are currently used as backfill in underground mines, stored in open pits, dried and stacked, or pumped through pipelines into tailings ponds on site to allow the solid particles to separate from the water and settle on the bottom. The water is then reused in mining operations.

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    Knowing the mine fill components is key to understand the behavior and to optimize the recipe for a better and lower cost backfill operation. Working together with world-wide lab testing centers, testing includes the characterization of physical properties, mineralogy of solids .

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    crusher pinion shaft arm liners price surface mining process. will running a crusher mainshaft faster improve throughput. Get more info of silica sand mining process equipment for free. ... countershaft box, sheave, frame and ...

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    Abstract: Possibility of cemented gangue backfill was studied with gangue of Suncun Coal Mine, Xinwen Coal Group, Shandong, and fly ash of nearby thermal power plant, in order to treat enormous coal gangue on a large scale and to recovery safety coal pillars.

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    backfill beyond the classical rock and soil mechanical equipment are shown in figures 3 and 4. Exemplarily, Shen et al. (2017) describe in detail the geomechanical and chemical pa-rameter determination for fly ash backfill used in abandoned mines including application and monitoring.

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    @article{osti_651167, title = {Filling abandoned mines with fluidized bed combustion ash grout}, author = {Gray, D.D. and Reddy, T.P. and Black, D.C. and ... Based on the rheological properties of the candidate grout mixes it was determined that admixtures were needed to stabilize the grout for optimum flow characteristics.

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    distances underground. The rheological characterisation of paste backfill is a difficult and complex task, given the high number of variable factors. So far, no standard procedures and/or methods have been established for measuring the rheological properties of paste backfill, in particular the yield stress.

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  • Application of Backfill in Bor River Underground Mine ...

    The use of backfill in underground mining is increasing due to need for systematic backfilling of mine openings and workings. Backfill is applied in order to prevent fires and explosions, to improve mine ventilation, to improve the stability of the rock, to reduce subsidence effects at the surface, as well as for economical and environmental factors.

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    Feb 19, 2018· Effect of ball milling energy on rheological and thermal properties of . Jul 31, 2015 In the same way, the effect of temperature on rheological properties .. properties of amaranth starch processed by ultra-fine pulverization.

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  • Feasibility of Acti-Gel® as a cost-effective additive for ...

    Backfill is an integral part of an underground mining operation. Its two main purposes are safety of the underground openings, and environmental remediation by use of waste material as a construction material underground. There are various sources used for backfill material, however mines .

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  • Investigation of the Sedimentation Property of Backfill ...

    The rheological property is sensitive to the variation of backfill slurry concentration. In addition, rheological property is believed to be a reliable factor for describing the backfill slurry pipeline transportation . Hence, this research aims at investigating the sedimentation property of the backfill material by conducting a series of rheological tests of the iron tailings backfill material with various mass concentrations.

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  • The Selection and Application of Filling Material Based on ...

    Abstract: In order to research the mechanical properties of the backfill cream-body under engineering conditions in the coal mine, the uniaxial compression test of backfill cream-body with different ages abtained from the filling locale of Daizhuang coal mine is conducted with MTS815.03 rock test system.

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