ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2007, Vol. 27 ›› Issue (6): 26-29.DOI: B

• wenzhang • Previous Articles     Next Articles

Mechanical Analysis on Cutter Failures of Hard Rock TBMs

DONG Tian-Hong   

  1. China Railway Tunnel Stock Co.,Ltd., Xinxiang453000, Henan, China
  • Received:2007-11-14 Revised:2007-11-23 Online:2007-12-20 Published:2009-12-06

Abstract:

The normal working conditions of the cutters of hard rock TBMs is described, the mechanical factors of the cutters are defined, mechanical analysis and failure analysis are made for the cutters and countermeasures are recommended to control the mechanical conditions of the cutters so as to avoid premature failure of the cutters.

Key words: hard rock TBM, cutter, failure, mechanical analysis

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