Application of a rock buttress to design of slopes at Cassiar Mine

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Mots clés : Rock mechanics;Slope design;Buttress;Mine planning;Stability analysis techniques;Slope stability
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Publication: CIM Bulletin
Auteur(s): A.L HOLLOWAY, N.M. SOONAWALA, LS. COLLETT
Mots clés: Rock mechanics, Geotechnical engineering, Geophysics, Waste disposal, Nuclear fuel waste, Ground-penetrating radar, Radar, Granite rock.
Numéro: 896
Volume: 79
Année: 1986
Texte
Sommaire: Till geochemistry was the principal exploration tool employed by Selco in the investigation of a zinc prospect in Lanark Township, Ontario. The geochemical studies were undertaken after the discovery at surface of marble boulders containing bands of sphalerite and lesser amounts of galena.
The source of these mineralized boulders was sought by means of B-horizon soil geochemistry, followed, where appropriate, by back-hoe trenching and till sampling. The thickness of the till in this part of...
Publication: CIM Bulletin
Auteur(s): I.G.L SINCLAIR
Mots clés: Exploration, Geochemistry, Soil geochemistry, Back-hoe trenching, Till sampling.
Numéro: 896
Volume: 79
Année: 1986
Texte
Sommaire: In bedded deposits such as coal or sedimentary iron, economic limits of mineable reserves are clearly defined by the f ootwall of the seams or ore-bearing units. Where open pits are developed in dipping strata, a long, high f ootwall slope may result. In many cases, unbenched slopes excavated along the base of the lowest mineable seam are operationally simple, economically desirable and geotechnically practical, although a variety of failure mechanisms may develop. This paper examines the...
Publication: CIM Bulletin
Auteur(s): P.M. HAWLEY, D.C. MARTIN, C.P. ACOTT
Mots clés: Rock mechanics, Bedded deposits, Open pit, Footwall slope, Benches, Unbenched slope, Failure mechanisms, Slope stability analyses, Slope design, Geotechnical assessments.
Numéro: 896
Volume: 79
Année: 1986
Texte
Sommaire: A shallow till sampling program was completed on a 1 km grid over the St. George Batholith in southern New Brunswick. The "B" soil horizon was analyzed for Cu, Pb, Zn, Ag, Co, Mo, U and Sb and the heavy minerals from the "C" soil horizon were ing the anomalous metal contents of overburden to their bedrock source. He is presently studying the metallogeny of an area in New Brunswick mapping the alteration halos around a porphyry copper system and determining the relationship...
Publication: CIM Bulletin
Auteur(s): V.N. RAMPTON, R.D. THOMAS, S. PARADIS
Mots clés: Till geochemistry, Exploration, Shallow till sampling, Bedrock geology, Quarternary geology.
Numéro: 896
Volume: 79
Année: 1986
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