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  • Rock Excavation Engineering - Central Institute of Mining …

    HORG: Dr. Pradeep K. Singh, Director, CSIR-CIMFR . Name and Mandate of the Division (a) Rock Excavation Engineering & (b) Explosive & Explosion Laboratory

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    Back — The roof or upper part in any underground mining cavity. Backfill — Mine waste or rock used to support the roof after coal removal. Barren — Said of rock ...

  • Glossary of Mining Terms - Coal Education

    A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch ...

  • Glossary of Mining Terms - Coal Education

    A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch ...

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    MINING . This page primarily focuses on metallurgical mining, though many of the terms, processes, and concepts are the same within the non-metallurgical extraction ...

  • Mountaintop removal mining - Wikipedia

    Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain.

  • Hoist (mining) - Wikipedia

    In underground mining a hoist or winder is used to raise and lower conveyances within the mine shaft. Modern hoists are normally powered using electric motors ...

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    Tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock, such ...

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  • Welcome to Central Institute of Mining & Fuel …

    CSIR-Central Institute of Mining and Fuel Research

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    Glossary. Abutment - the outermost end supports on a bridge, which carry the load from the deck. Aluminum - a lightweight chemical element (Al); the most abundant ...

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    Chapter 1513: COAL SURFACE MINING. 1513.01 Coal surface mining definitions. As used in this chapter: "Approximate original contour" means that surface ...

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  • Business in Historic Wallace Idaho

    Wallace is located on I-90 in northern Idaho's Silver Valley, and is known for its silver mining history and mountain recreation. Two ski areas and many alpine lakes ...