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MODERN TUNNELLING TECHNOLOGY 2017, Vol. 54 Issue (1) :180-185    DOI:
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Timely Grouting with Forms at the Crown of a Railway Tunnel Via a Lining Trolley
(1 Engineering Management Center of China Railway, Beijing 100844; 2 China Railway Eleventh Bureau Group Company,Wuhan 430061)
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Abstract This paper briefly introduces the conventional treatment method for and prevention of the defects of voids at the tunnel crown, and focuses mainly on timely grouting with lining forms and embedded RPC pipe at the crown by a lining trolley. With this technology the problems of a hollow cavity, void and uncompacted concrete are solved and the integrity of the grouting material and lining are improved after being verified by radar scanning, thereby guaranteeing the safety of the structure.
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GONG Cheng-Ming- 1 Zhu-Jia-Bin- 2 She-Hai-Long- 2
Keywords�� Tunnel   Hollow cavity at the tunnel crown   Grouting with lining forms   RPC grouting pipe     
Abstract�� This paper briefly introduces the conventional treatment method for and prevention of the defects of voids at the tunnel crown, and focuses mainly on timely grouting with lining forms and embedded RPC pipe at the crown by a lining trolley. With this technology the problems of a hollow cavity, void and uncompacted concrete are solved and the integrity of the grouting material and lining are improved after being verified by radar scanning, thereby guaranteeing the safety of the structure.
Keywords�� Tunnel,   Hollow cavity at the tunnel crown,   Grouting with lining forms,   RPC grouting pipe     
Cite this article:   
GONG Cheng-Ming- 1 Zhu-Jia-Bin- 2 She-Hai-Long- 2 .Timely Grouting with Forms at the Crown of a Railway Tunnel Via a Lining Trolley[J]  MODERN TUNNELLING TECHNOLOGY, 2017,V54(1): 180-185
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