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Showing: 1 to 10 of 233 matches for "tbm rock torque"  Page   1   2   3   4   5   6   7   8   9  next TITLE TBM cutting forces with particular reference to cutter and tunnel diameters  SUMMARY ... 1999), the present authors proposed a method for estimating the rock strength of the working face based on TBM cutting forces (thrust and torque) and cutting ... AUTHOR Fukui, K. ; Okubo, S. PUBLISHED 2003 TITLE Operational Characteristics Of Full Face Tunnel Boring Machines  SUMMARY ... 5 a 3m diameter TBM having a thrust of 5MN would optimally cut a rock having a compressive strength of about 134 MN/m2 and require a torque of 600W–M. In ... AUTHOR Farmer , Ian ; Garritty, Philip ; Glossop, Nigel PUBLISHED 1987 TITLE EPB TBM Technology  SUMMARY ... a nominal torque of 95MNm and an exceptional torque of 125MNm ... bearing design for a soft ground TBM is normally ... bullgear or in some cases for hard rock TBMs with ... AUTHOR Burger, Werner PUBLISHED 2008 TITLE World?s Largest TBM Keeps Niagara Project On Track  SUMMARY ... 18,800 kNm Approximate torque (high speed) 5 rpm ... The TBM Model 471-316, nicknamed Big Becky, is the world’s largest hard-rock TBM ever manufactured. ... AUTHOR Harding, Doug PUBLISHED 2008 TITLE Database of TBM Projects Undertaken Between 1950 and 1990 and an Assessment of Associated Ground Strength Limitations  SUMMARY ... and locality, year ofproject, TBM description and type, rock type and ... DRl index (Howarth, 1986), TBM cutter head power, thrust, torque, mass, number of ... PUBLISHED 1993 TITLE Shafts And Tunnels: Damen Avenue To Roosevelt Road  SUMMARY ... mounted on the trailing gear behind the TBM, convert the ... pass through the in- terior of the torque tube to ... of broken rock are produced and must be transported ... AUTHOR Paschen, William C. PUBLISHED 1979 TITLE Tunnel Boring At The Stillwater Mine Nye, Montana  SUMMARY ... IUNTY LINE ‘PROXIMATELY AT :CTI13N 14,270V REEF 5900 TBM DRIVE ... Due to the low rolling friction expected in the hard rock, the torque was reduced to ... AUTHOR Tilley, Cherie M. PUBLISHED 1989 TITLE Development And Current Experience With Double Shield T.B.M.  SUMMARY ... through, while a non shielded, gripper type TBM would have ... shield, can provide the necessary thrust and torque reaction in most poor rock conditions because ... AUTHOR Grandori, Carlo PUBLISHED 1987 TITLE Optimizing Tunnel Boring Machine And Cutter Design For Greater Boreability  SUMMARY ... result in reducing the amount of torque required to turn a TBM head for a fixed depth of penetration per revolution since the number of rock cutter contacts is ... AUTHOR Hamilton, W. H. ; Dollinger, G. L. PUBLISHED 1979 TITLE Hard Rock Tunnel Boring: A Summary Of Recent Developments  SUMMARY ... Traditionally, the torque requirements fur a TBM in s given rock cunditiun have been calculated using a cutter coefficient defined as the ratiu uf the cutter ... AUTHOR Dollinger, Gerald L., PH.D. PUBLISHED 1983 Showing: 1 to 10 of 233 matches for "tbm rock torque"  Page   1   2   3   4   5   6   7   8   9  next Search Again