ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2010, Vol. 30 ›› Issue (S1): 383-386.

• wenzhang • Previous Articles     Next Articles

Construction Quality Control of Shield Tunneling in Sharp Curve Section

HUANG  Chao   

  1. Guangzhou Municipal Dunjian Underground Construction Engineering Co., Ltd. Guangzhou 510030
  • Received:2010-05-08 Revised:2010-05-30 Online:2010-08-14 Published:2010-08-25

Abstract:

Due to particularity and complexity of shield tunneling in sharp curve section, the construction quality is hard to control. Regarding the quality problems in shield tunneling in sharp curve section in bid 4 of No.6 line on Guangzhou Metro, the causes for the segment water seepage, segment dislocation and segment breaking are analyzed. According to the analysis, treatment and prevention measures to improve the construction quality of shield tunnel are summarized in this paper, which may provide reference for similar projects in the future.

Key words: shield, sharp curve, quality defect, water seepage, segment dislocation, broken segment, quality control