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  • SLOPE STABILITY PRISM MONITORING: A GUIDE FOR …

    In designing an open pit mine to optimise an orebody, numerous considerations are made. These include geological, geotechnical, mining method and equipment selection considerations. To achieve the optimisation of an orebody depends on sound mine design principles and adherence to the mining sequence with employee's

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  • 3.2 Pump characteristics - TU Delft OCW

    3.2 Pump characteristics The hydraulic properties of a pump can be described by some characteristics: o Q-H curve o Efficiency curve o Power curve o Net Positive Suction Head (NPSH) curve. Each of the characteristics is explained in the next sections for propeller pumps. 3.2.1 Q-H curve The Q-H curve is the relation between the volume

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  • Selection criteria for loading and hauling equipment

    Methods for estimating productivity and costs, and dependent equipment selection process, have needed to be increasingly reliable. Estimated productivity and costs must be as accurate as possible in reflecting actual productivity and costs experienced by mining operations to accommodate the long-term trend for diminishing commodity prices, For loading and hauling equipment operating in open

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  • Evaluation of plate loading tests on some rock formations

    Feb 07, 2013 · A significant proportion of the cost of winning minerals or aggregates in an open cast mine is related to the mass haul. The quality of the haul roads is an important factor in the efficiency and length of turn-round time. The paper reports a study into the use of plate loadings tests as a quick and easy means of establishing a preliminary bearing capacity. Various relationships have been

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  • (PDF) Optimization of the load-and-haul operation at an

    In open pit mining, the two major factors affecting the fleet productivity are the planned tonnage to be moved, that is based on the long-term production schedule, and the time it takes to move

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  • (PDF) Effective factors investigation in choice between

    EFFECTIVE FACTORS IN SELECTING SURFACE OR UNDERGROUND Before beginning a detailed economic analysis of the factors which enter into deciding whether to mine by open-pit or underground mining, and what point a change should be made from open …

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  • Safety rules and regulations on mine sites – The problem

    The issue of human factor risk and rules and regulations in open pit mine is a main focus of this paper in order to develop predictive models of behavior of workers in relation to compliance with the procedures and rules. Presented survey was conducted in open pit …

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  • DEPARTMENT OF LABOR MINE SAFETY AND HEALTH …

    Feb 08, 2021 · The mine drills and blasts limestone and dolomite in an open pit and The accident investigation team conducted an analysis to identify the underlying causes of the accident. The team identified the following root causes, and the mine operator implemented the completed a review of all other equipment guarding on the mine site. 3. Root

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  • Safety rules and regulations on mine sites – The problem

    The issue of human factor risk and rules and regulations in open pit mine is a main focus of this paper in order to develop predictive models of behavior of workers in relation to compliance with the procedures and rules. Presented survey was conducted in open pit …

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  • University of Wollongong Research Online

    Results of an investigation into ground vibrations carried out in an open pit coal mine in New South Wales has been analysed. As this mine is located in a sensitive area in regard to potential damage from ground vibrations, severe restrictions were imposed on the …

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  • Productivity Considerations for Shovels and Excavators

    Citing an open-pit coal mine, Ahrenkiel explained how an RH 200 with a 50-ton bucket was loading 200-ton trucks in five passes and the mine operator was pleased with the performance. "The mine was happy with five passes and an 80% fill factor or four passes with a 90% fill factor and one pass with a 40% fill factor," Ahrenkiel said.

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  • Front End Loader | Circle G Tractor Parts | Hydraulics

    Front End Loader Parts. Find the parts you need for your tractor's front end loader at Circle G. We carry Jinma parts and Farm Pro parts, as well as parts for many other manufacturers. Filter by make and model on the left to find the right part for your tractor, or browse our inventory below.

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  • Excavation safety | WorkSafe

    Sep 05, 2017 · Avoid underground services and make sure not to undermine nearby structures – use safe digging practice and dig away from them. Check the excavation each day before starting work and after any event that may affect its stability. Provide safe access to get in and out. Prevent collapse – shore, bench, or batter back.

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  • Evaluation of Open-Pit Mine Security Risk Based on FAHP

    Nov 09, 2019 · Badri et al. incorporated occupational health and safety (OHS) factors in the risk management of open-pit stope by interviewing and questionnaires, observation and analysis of accidents, etc., further investigated the safety status of the new open-pit mine in Quebec, Canada, systematically analyzed the safety issues during the mine production

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  • Selection criteria for loading and hauling equipment

    Methods for estimating productivity and costs, and dependent equipment selection process, have needed to be increasingly reliable. Estimated productivity and costs must be as accurate as possible in reflecting actual productivity and costs experienced by mining operations to accommodate the long-term trend for diminishing commodity prices, For loading and hauling equipment operating in open

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  • Simulation and animation model to boost mining efficiency

    Jul 01, 2015 · The initial equipment assignment was 20 trucks with 2 excavators in pit 1 and 40 trucks with 4 excavators in pit 2. After modeling the mine operation using discrete simulation and analyzing the results to optimize production and reduce environmental impact, it was found to be best to move 3 haul trucks (CAT 789C) from pit 1 to pit 2.

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  • Rental Equipment | H&E Equipment Services

    The Right Equipment Solutions to Get the Job Done. We offer a large and diverse inventory of earthmoving, construction, industrial, material handling, and heavy equipment available for rent on a daily, weekly, monthly, or yearly basis.Our competitive rates make renting affordable.

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  • Surface Mining Methods and Equipment - EOLSS

    UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Surface Mining Methods and Equipment - J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2. Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs.

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  • SPECIFICATION 3CX BACKHOE LOADER - Al-Faris

    SPECIFICATION 3CX BACKHOE LOADER LOADER ATTACHMENTS – 6 in 1 Bucket Fork Dimensions W X Z Y LOADER ATTACHMENTS – Direct Mount HD bucket – 92", 1.3 yd3 lb (kg) 1697 (770) 6-in-1, 92" – with forks 1.3 yd3 lb (kg) 1940 (880) 6-in-1 bucket mounted forks

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  • Prediction of slope failure in open-pit mines using a

    Jun 18, 2020 · Slope collapse is a critical hazard in open-pit mines as it can be of any scale, small or large, and directly affect people, equipment, and production processes (Fig. 1).Therefore, analysis and

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