ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2011, Vol. 31 ›› Issue (3): 364-368.

• wenzhang • Previous Articles     Next Articles

Analysis on Jamming of Doubleshield TBM in Construction of Water Diversion Tunnel and Jamming Releasing Technology

WANG Jiang   

  1. China Railway First Survey and Design Institute Group Co., Ltd., Xi’an 710043, China
  • Received:2011-02-28 Revised:2011-03-12 Online:2011-06-20 Published:2011-07-08

Abstract:

The construction schedule is greatly affected due to the jamming of the doubleshield TBM in the construction of the water diversion tunnel in unfavorable geology conditions. The causes for 3 common types of jamming of doubleshield TBM in the construction of the water diversion tunnel of DatongheHuangshuihe Water Transfer Project in unfavorable geology conditions are summarized and analyzed, 5 types of jam releasing technologies are proposed and countermeasures are adviced to prevent jamming of doubleshield TBMs. In the end, the jamming has been successfully released, due to the application of these technologies.

Key words: water diversion tunnel, doubleshield TBM, jamming, jam releasing, water diversion tunnel, unfavorable geology condition