Soil Engineering and Foundation

›› 2014, Vol. 28 ›› Issue (4): 90-92.

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Remediation on Jammed TBM in Daban Diversion Tunnel Excavation

LU Chengbo1， XIN Fengmao2， CAO Yang2， ZHANG Yuelin2   

  1. （1.Yili River Watershed Development and Construction Administration, Yili Xinjiang 835000；
    2.China Water Resources North Institute of Investigation and Research Co.,Ltd. Tianjin 300222)
  • Received:2014-03-14 Online:2014-08-20 Published:2014-08-27

Abstract: The Daban diversion tunnel has a total length of 31.92km. This tunnel crosses many poor geological areas, such as, expansive rock mass, clayey silty fine sandstone rock masses. The Tunnel Boring Machines (TBM) was jammed and successfully remediated several times during the tunnel excavation. This paper summarizes various grouting methods that are applied in the tunnel excavation, such as, gravity grout, compaction grout and seepage cutoff grout.

Key words: TBM Jamming, Gravity Grout, Compaction Grout, Seepage Cut-off Grout