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MURPHY AND PARKINSON: UNDERGROUND MINE COMMUNICATIONS Work~ng sectlon locations Note, Flne deta~l such as pillars not shown. Fig. 1. Plan view of typical mining operation.
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How Underground Mining Works | HowStuffWorks. Learn how underground mining works at HowStuffWorks. ore-transport tunnels; recovery shafts to carry excavated ore to the surface; and communication
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underground mine - Visual Dictionary Online - Merriam-Webster- shaft communication in underground mining ,Bottom of the shaft in which water runoff accumulates inside the mine before being pumped to the surface , that cuts through the ore bed perpendicularly; it provides communication between the passageways and helps to ventilate the …
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We offer a range of Maintenance Shafts that have been appraised by WSAA and approved for use by the major water authorities. Where approved, maintenance shafts are quick and easy to install making them an ideal replacement for traditional manholes.
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Shaft mining - Wikipedia
Shaft mining or shaft sinking is excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom.