ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2007, Vol. 27 ›› Issue (增刊1): 33-35.DOI: B

• wenzhang • Previous Articles     Next Articles

Causes and Countermeasures for Construction Cracks on
Pumped Concrete Structures of Tunnels

 JIA Fu-Kui   

  1. The Second Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China
  • Received:2007-01-19 Online:2007-06-18 Published:2010-01-05

Abstract:

In the paper, the features of pumped concrete for tunnel works and the types of and causes for the construction cracks are analyzed and countermeasures are recommended in terms of raw materials, mixing proportion, admixtures, additives and construction technology. The countermeasures are applied in the practice of lining construction of Taihangshan tunnel on Shijiazhuang~Taiyuan passengerdedicated railway and good results have been achieved.

Key words:  , tunnel pumped concrete  , construction crack  , cause  , prevention measure

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