Tunnels and Declines: (collected Papers)Energy, Mines and Resources Canada : available from Information Canada, 1975 - Mining engineering - 97 pages |
Common terms and phrases
Alternative bedrock Bell Canada Builder of Tunnel Calgary Trail CANMET City of Toronto Concr construction Cover Constr decline Depth Job dewatering drainage drilled Engng Etobicoke excavation Final completion forebay shaft Gore & Storrie grouting Hand Mining haulage drift hydrogen sulphide installed intake shaft investigation Length of Cover Levack West Liner Plate Lining Design Tunnel Location Lining Design Maguire Contr major cave-in McNally & Sons Mississauga months Montreal muck Name Owner Cons Nanticoke Niagara Falls North York Ontario Hydro Oshawa Ottawa Owner Eng pipes poured in place preglacial psig max pumping raise borer ramp Reinf Ribs & Lagging Ribs & Planking Rock Bolts sand Scooptram Secondary Length ft Shape Dimension inches shotcrete Sons Ltd Storrie Ltd sumps surface TABLE 4 contd Teletram Terrain Period test holes Timber Toronto Gore Toronto N/A Tunnel Shape Dimension Tunnelling Method underground wall weeks Whitemud Creek ZONE