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Title:
FILLER FOR REAR FACE CAVITY OF MOUNTAIN TUNNEL AND FILLING METHOD OF REAR FACE CAVITY FOR MOUNTAIN TUNNEL USING THE SAME
Document Type and Number:
Japanese Patent JP2007016504
Kind Code:
A
Abstract:

To solve the problem that lightness, injection performance, handling performance and inexpensiveness are required for a filler, though the filler is conventionally injected into a rear face cavity by an air mortar construction method, a foam urethane construction method and a plastic grout construction method, since the rear face cavity of a tunnel is likely to become a factor of causing looseness of the natural ground.

A mountain tunnel rear face cavity filler is manufactured by a manufacturing plant 101, and includes water, cement, fly ash and a lightweight aggregate, and is carried up to a job site by a ready-mixed concrete car 102. The filler supplied from the ready-mixed concrete car there is received by a hopper 103, and is force-fed by a mortar pump 104, and is injected into the rear face cavity 10 via a nozzle 106 from a high lift work vehicle 105.


Inventors:
YOSHIKAWA KAZUYUKI
CHICHIBU AKIYOSHI
Application Number:
JP2005199817A
Publication Date:
January 25, 2007
Filing Date:
July 08, 2005
Export Citation:
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Assignee:
FUJITA CORP
International Classes:
E21D11/00; C04B14/18; C04B18/08; C04B24/12; C04B24/20; C04B28/02; C04B111/70
Domestic Patent References:
JP2001214163A2001-08-07
JP2002308660A2002-10-23
JP2000170153A2000-06-20
JP2004067976A2004-03-04
JP2004091217A2004-03-25
JP2003313537A2003-11-06
JP2005163526A2005-06-23
JP2004189568A2004-07-08
Attorney, Agent or Firm:
Shigeru Noda