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隧道建设(中英文) ›› 2007, Vol. 27 ›› Issue (增刊1): 33-35.DOI: B

• 施工技术 • 上一篇    下一篇

隧道泵送混凝土施工裂缝的成因和预防措施

夏福奎   

  1. 中铁隧道集团二处有限公司, 河北 三河065201
  • 收稿日期:2007-01-19 出版日期:2007-06-18 发布日期:2010-01-05
  • 作者简介:夏福奎(1975-)|男|1999年7月毕业于西南交通大学地下工程及隧道工程专业|本科|现从事隧道与地下工程、路桥工程、路基工程施工技术工作。

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

摘要:

对隧道泵送混凝土的特点、施工裂缝的种类、成因进行分析,提出了从原材料、配合比、掺合料、外加剂、施工工艺等方面采取的防治措施,并应用到石太客运专线太行山隧道泵送混凝土衬砌的施工实践中,收到了较好的效果。

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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