SHAFT COLLAR IN DEEP OVERBURDEN - AUR-RESOURCES-INC, LOUVICOURT PROJECT

Aur Resources Inc. is the operator of the Louvicourt Mine located 40 k m east of Val d'Or, Quebec. Les Entreprises Minieres Redpath Limitee, a member of the J.S. Redpath Group of companies, was contracted to con struct two vertical mine shaft collars in deep overburden. During the spring of 1991 two vertical shaft collars were established in wet, run ning sand that was in excess of 20 m deep. This paper will illustrate the engineering and construction techniques used in establishing these collars and the methods used to overcome the various obstacles that o ccurred during construction.