Title:
STRUCTURE AND CONSTRUCTION METHOD FOR IN-TUNNEL BUILT-UP PASSAGE FOR OBSERVER
Document Type and Number:
Japanese Patent JP2005048532
Kind Code:
A
Abstract:
To provide a structural member and a construction method for a built-up passage for an observer, which can shorten a construction period and cut back on a construction cost, by solving the problem that the construction period cannot be reduced because the construction of the in-tunnel passage for the observer requires many processes and other works cannot be started until the completion of curing of concrete.
A steel guard fence (guard rail) for use in current road construction is effectively utilized, and the in-tunnel passage for the observer is constructed as a built-up type, so that the construction period of in-tunnel construction work can be shortened.
Inventors:
INOUE AKIRA
TAKAHASHI TOSHIO
YOSHII KOICHI
SAIKI HIDEO
IWATA MASAHIRO
KUBOTA MASAYA
TAKAHASHI TOSHIO
YOSHII KOICHI
SAIKI HIDEO
IWATA MASAHIRO
KUBOTA MASAYA
Application Number:
JP2003283645A
Publication Date:
February 24, 2005
Filing Date:
July 31, 2003
Export Citation:
Assignee:
AZUMA KOGYO CO LTD
International Classes:
E21D11/04; E21F17/00; (IPC1-7): E21D11/04; E21F17/00
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