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By R. J. McGregor

The Internet has revolutionized worldwide communications. Any real or perceived mining incident or environmental spill, no matter how small or remote, can become a disaster of "biblical proportions" through the judicious use of the Internet by environmental and anti-mining groups. In addition, mining companies' own Web sites and unofficial message boards can provide plenty of additional ammunition to the anti-mining forces. This paper explores how the Internet and readily available information are used by anti-mining groups active on the Web.

Jan 1, 2001

By Jerry C. Tien

This paper investigated the airflow pattern in the working face area during a cross-cut development. The study used a 10:l scale face model and a mock continuous miner. Results showed that keeping up the line curtain is essential in order to avoid recirculation and to control respirable dust and methane, in the face area.

Jan 1, 1989

By Dominic F. Howarth

Cuttability and borability assessment methods in rock and coal are reviewed. TBM, roadheader and coal cutting machine boring rates can be predicted from a knowledge of machine, intact rock property and rock mass parameters. Results that were obtained from a detailed analysis of two TBM borability prediction methods and comparison with data from twenty case histories, show that a simple, low-cost method that uses one machine parameter and one rock parameter compares very favourably with a sophisticated, high-cost method that also includes details of rock mass characteristics (discontinuity, type frequency and orientation).

Jan 1, 1987

By Nick Bower, Richard Giffen

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Jun 13, 2021

By Sebastian Sucri, Percy Townsend

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Jun 13, 2021

By Everett Litton, Ehsan Alavi

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Jun 13, 2021

By Chris Lynagh, Lisa Smiley

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Jun 13, 2021

By Anton Hupfauf, Peter Raleigh

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Jun 13, 2021

By TONY CICINELLI

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Jun 13, 2021

By Renee Fippin

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Jun 13, 2021

By Andrew Bursey, Colin Lyons

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Jun 13, 2021

By Aaron McClellan, Eric Levonas

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Jun 13, 2021

By Jesse Salai, Colin Sessions

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Jun 13, 2021

By Mike Stolkin, Julio Martinez

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Jun 13, 2021

By Dillon Tew, Kush Chohan

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Jun 13, 2021

By David Watson, Steve Price

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Jun 13, 2021

By Stephen Njoloma, Amitabha Mukherjee

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Jun 13, 2021

By Mohamed Younis, Keith Ward

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Jun 13, 2021

By Dave Dorfman, Ben DiFiore

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Jun 13, 2021

By James R. Aggson, Verne E. Hooker, Dennis R. Dolinar

The stability of underground openings and mining systems is closely related to the in situ stress field. This paper presents a short discussion of the three-component borehole deformation gage and overcoring technique which the Bureau of Mines uses to measure in situ stresses, and a summary of stress data that the Bureau has gathered in the process of evaluating ground control problems. Specific ground control problems and stress distributions are discussed as examples.

Jan 1, 1982