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List of Approved Items - Electrical: Directorate General Of ...

Let us make the work place and environment in mines safe and secured for the miner who extract minerals for the making of a nation.

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Great Pyramid Hydraulic Pulse Generator and Water Pump

Working models of the suberranean section of the Great Pyramid. A hydraulic pulse generator and water pump built with the subterranean chamber.

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Mine Tunnel Technology | Tunneling - TechnoMine

This review focuses on different mechanical methods of tunneling and covers topics like selection of a tunneling method, suppliers, consultants and publications in the area of tunneling.

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Practical Considerations for Tunnels Used in Mining Applications

Practical Considerations for Tunnels Used in Mining Applications Marco D. Boscardin, Ph.D., DGE, PE Boscardin Consulting Engineers, Inc. Presentation to Geologic Society of Maine

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Pit Terminology - Glossary - Mines Rescue

A. AB15 - Anderson Boyes steel rope hauled 15 inches high machine for undercutting coal at face lines. Similarly AB 12 being 12 inches high for thin seams

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Heavy equipment - Wikipedia

Heavy equipment refers to heavy-duty vehicles, specially designed for executing construction tasks, most frequently ones involving earthwork operations.They are also known as heavy machines, heavy trucks, construction equipment, engineering equipment, heavy vehicles, or heavy hydraulics.

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Sandhogs Full Episodes, Video & More | HISTORY

Working in extremely hazardous conditions and facing a long history of death, Sandhogs toil underneath the streets just as they have for the past 150 years. Having built nearly every underground project in New York, they are an instrumental part of the development of NYC.

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Tunnel boring machine - Wikipedia

A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.They may also be used for microtunneling.

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