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.
JPH09241065 | LOW STRENGTH INJECTION MATERIAL |
JP2516025 | [Name of device] Tail clearance measuring device |
CHICHIBU AKIYOSHI
JP2001214163A | 2001-08-07 | |||
JP2002308660A | 2002-10-23 | |||
JP2000170153A | 2000-06-20 | |||
JP2004067976A | 2004-03-04 | |||
JP2004091217A | 2004-03-25 | |||
JP2003313537A | 2003-11-06 | |||
JP2005163526A | 2005-06-23 | |||
JP2004189568A | 2004-07-08 |