Planning Considerations For Transition From Open Pit To Underground

Many ore deposits extend vertically, a fact which is not always known at the start of mining. If initial mining is by opencast methods and ore reserves are proven to greater depths, the pits are often planned to go deeper than originally envisaged. In such cases, surface plants and critical underground facilities — conveyor tunnels,

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Open Pit To Underground Transition

SRK carried out a scoping study on an existing open pit operation (12 Mtpa) that is soon to be reaching a depth where the mine will need to transition to a large-scale underground mining method. The goal was to provide production continuity at a rate that will still be suitable to maximise use of the

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Mass Mining Diamonds

Mass mining including block caving, incline caving, front caving, sub-level caving and sub-level retreat are the principal mining methods for primary diamond deposits worldwide. Diamonds have only been mined on an industrial scale within the past 150 years, mainly as open pit mines. Underground mining of those deposits was first implemented within the second half

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Geomechanical Design For The World’s Largest Underground Mine

The Chuquicamata underground mine in the Atacama Desert in northern Chile is one of the largest planned mining projects in the world to use block caving with macro-blocks option to mine copper ore. CODELCO is currently finishing the detailed engineering stage and constructing the main infrastructure for the project. The underground mine is expected to

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Addressing the Challenges and Future of Cave Mining

It is important in an industry such as cave mining to keep up-to-date knowledge, experience and best practice at the forefront to maintain the best possible level of safety for all involved. Unfortunately, much knowledge is proprietary to commercial research project sponsors. The Australian Centre for Geomechanics Caving 2018 Symposium, with Collaborating Organisation SRK Consulting

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Water in Cave Mining

This presentation summarizes a talk given during the inaugural workshop of the Cave Mining Forum. This presentation will highlight one of the cave mining phenomenon related to surface and ground water. Water combined with clays and fine particles generated by caving processes could result in mudrushes and mudflows. This presentation will also include the discussion

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