Research Article
Aug 1982
Rock Engineering: La Grande Complex, Quebec
Authors: D. Kent Murphy and Jerry LevayAuthor Affiliations
Publication: Journal of the Geotechnical Engineering Division
Volume 108, Issue 8
Abstract
Rock engineering has played an important role in the design and construction management of the La Grande Complex, a 13,75O MW hydroelectric development in the James Bay area of northern Quebec. Confidence in the strength and erosion resisting properties of the precambrian granitic and metamorphic rocks of the region has led to some innovative design solutions as well as a policy of flexible response to rock support requirements. Experience gained with unlined tunnels and channels for hydraulic purposes is discussed. The importance of closely controlled drilling and blasting procedures in some areas of the work such as the crane support ledges at LG2 and a diversion conduit excavation at LG4 is also noted. The success of the flexible, generally optimistic approach to rock excavation and support activities in the Complex is due in large measure to the good communication links existing among design, cost control and construction elements within the management group, the Sociėtė d'ėnergie de la Baie James.
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Published In
Journal of the Geotechnical Engineering Division
Volume 108 • Issue 8 • August 1982
Pages: 1040 - 1055
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Aug 1982
Published online: Feb 11, 2021
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Authors
Affiliations
D. Kent Murphy
Chf. Geologist, Rousseau, Sauvé, Warren Inc., Montreal, Quebec, Canada
Jerry Levay
Deputy Head, Geology and Soil Mech. Dept., Société d'Energie de la Baie James, 800 Blvd. de Maisonneuve E., Montreal, Quebec, Canada
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