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Geotechnical Assessment of Potential Methods of Underground Mining of the Copper-nickel Deposits of Northeastern Minnesota.

Authors
Hardy-MP; Matthews-KE; St John-CM
Source
NTIS: PB 297-262 :91 pages
Link
NIOSHTIC No.
10009517
Abstract
Copper-nickel ores in northeastern Minnesota could establish a new industry in a region where underground mining has not been active. This study reviews geotechnical data relevant to the selection and design of underground mines in this region and by numerical structural analysis evaluates the importance of some geotechnical parameters to mine method selection. Because of the rapid development of computer modeling, many new techniques have become available for modeling rock mass behavior in recent years. An overview of these methods is presented and their applicability to mine design reviewed. Methods included in this summary were the differential continuum models, such as finite element and finite difference; integral continuum models, such as boundary element; displacement discontinuity and boundary integral equation methods; and discontinuum methods, such as the distinct block model.
Publication Date
19780101
Document Type
CP; Final Contract Report;
Fiscal Year
1978
NTIS Accession No.
PB-297262
NTIS Price
A06
Identifying No.
OFR 62-79
Source Name
NTIS: PB 297-262
State
MN;
Performing Organization
University of Minnesota
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