Articles On Problems Associated With Open Pit And Underground Mining

Dec 06, 2012 Similar to the mixed-integer programming library (MIPLIB), we present a library of publicly available test problem instances for three classical types of open pit mining problems: the ultimate pit limit problem and two variants of open pit production scheduling problems. The ultimate pit limit problem determines a set of notional three-dimensional blocks containing ore and/or waste material

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  • Strategic mining options optimization: Open pit mining

    Strategic mining options optimization: Open pit mining

    Nov 01, 2016 2. Mining options problem. A strategic plan is to be developed for a moderate dipping gold-silver-copper orebody that is amenable to both open pit and underground mining. It is required that in addition to these mining options, a combined case of concurrent open pit and underground mining is investigated as well

  • Stability and access implications of open pit mining

    Stability and access implications of open pit mining

    Nov 28, 2016 Maintaining pit wall stability while mining through major scale underground stoping zones presents both a risk and challenge that can have significant impact on overall pit economics and viability. Potential operational problems associated with the interactions between the stopes and the pit walls may occur, necessitating pit wall redesign, ground support installation and operational

  • Underground Mining for Meeting Environmental

    Underground Mining for Meeting Environmental

    Jan 01, 2015 Underground mining can be considered to be more acceptable than surface mining from environmental and social perspectives since, it often has a smaller footprint than an open-pit of comparable capacity. The main advantage of underground mining compared to surface mining is that in general only the ore is extracted and waste rock is left behind

  • How can metal mining impact the environment? | American

    How can metal mining impact the environment? | American

    Open pit mining disturbs larger areas than underground mining, and thus has larger visual and physical impacts. As the amount of waste rock in open pit mines is commonly two to three times the amount of ore produced, tremendous volumes of waste rock are removed from the pits

  • Determination of the Ultimate Underground Mining

    Determination of the Ultimate Underground Mining

    Mar 06, 2021 Continuous mining of metal deposits leads the overlying strata to move, deform, and collapse, which is particularly obvious when open-pit mining and underground mining are adjacent. Once the mining depth of the adjacent open-pit lags severely behind the underground, the ultimate underground mining depth needs to be studied before the surface deformation extends to the open-pit mining

  • Effectiveness of optimization strategies to improve

    Effectiveness of optimization strategies to improve

  • Numerical Analysis of Block Caving-Induced Instability in

    Numerical Analysis of Block Caving-Induced Instability in

    Mar 06, 2009 This paper addresses one of the most challenging problems in mining rock engineering—the interaction between block cave mining and a large overlying open pit. The finite element modeling/discrete element modeling (FEM/DEM) approach was utilized in the analysis of block caving-induced step-path failure development in a large open pit slope. The analysis indicated that

  • UNDERGROUND MINE PLAN OPTIMIZATION | David

    UNDERGROUND MINE PLAN OPTIMIZATION | David

    Some ore-bodies are harvested by a combination of open-pit and underground methods. In these cases there is often material that could be mined by either method, and

  • (PDF) Underground mining Methods - ResearchGate

    (PDF) Underground mining Methods - ResearchGate

    orebody configuration thr ough underground drilling. 1) Longwall mining. 2) Room-and-pillar mining. 3) Blast mining. 4) Shortwall mining. 5) Coal Skimming. perform an economic evalua tion of the

  • Associated Event | Underground Mining Technology

    Associated Event | Underground Mining Technology

    His exposure at Evolution Mining includes experience at both open pit and underground mining operations. Currently residing at the Frog’s Leg mine in WA, Glen is involved in the design, implementation and monitoring of dynamic ground support systems in the highly stressed and active seismic environment

  • Environmental Impacts of Gold Mining | Brilliant Earth

    Environmental Impacts of Gold Mining | Brilliant Earth

    Modern industrial gold mining destroys landscapes and creates huge amounts of toxic waste. Due to the use of dirty practices such as open pit mining and cyanide heap leaching, mining companies generate about 20 tons of toxic waste for every 0.333-ounce gold ring. The waste, usually a gray liquid sludge, is laden with deadly cyanide and toxic

  • Dewatering - Canadian Mining Journal

    Dewatering - Canadian Mining Journal

    In fact, controlling water is such a big issue for mine owners and operators, particularly during Care and Maintenance, that most companies include Water Management Specialists as part of their Operations’ Team to help ensure that mine structures, both open-pit and underground, are safe from failures caused by freshet or other sources

  • Mathematical Problems in Engineering - Hindawi

    Mathematical Problems in Engineering - Hindawi

    To deeply understand the mechanism of the rock mass caving and associated surface subsidence during sublevel caving mining, the Xiaowanggou iron mine was selected as an engineering project case study. The study area was analyzed by means of an in situ geological investigation and numerical simulation. First, a borehole television (BHTV) system and a GPS monitoring system were used to

  • Guidelines for the assessment of geotechnical risks in

    Guidelines for the assessment of geotechnical risks in

    This guidance material is concerned with the assessment of geotechnical risks associated with the development, operation and rehabilitation of an open pit mine within Victoria. Large mines which are considered to have significant ground stability risks to public safety, the environment, land, property or surrounding infrastructure may be

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