Starting portal sealing structure of slurry shield tunnel

The utility model discloses a starting portal sealing structure of a slurry shield tunnel. The starting portal sealing structure comprises a main body structure, an embedded steel ring buried in the main body structure, a curtain rubber plate connected to the embedded steel ring and at least two ste...

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Bibliographic Details
Main Authors YAO ZHANHU, YOU GUANGWEN, XIA PENGJU
Format Patent
LanguageChinese
English
Published 17.09.2014
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:The utility model discloses a starting portal sealing structure of a slurry shield tunnel. The starting portal sealing structure comprises a main body structure, an embedded steel ring buried in the main body structure, a curtain rubber plate connected to the embedded steel ring and at least two steel wire brushes; a grouting hole is formed in the embedded steel ring and located between the two steel wire brushes. Due to the adopted technical scheme, the starting portal sealing structure of the slurry shield tunnel has the advantages that the curtain rubber plate is used of preventing lots of water from rushing out, the two steel wire brushes are in seamless contact with a shield machine shell or a duct piece so as to prevent water seepage, and finally, the grouting hole is formed in the embedded steel ring and a grease is injected to the steel wire brushes to enhance the water plugging effect.
Bibliography:Application Number: CN20142283433U