TUNNEL LINING FORM AND TUNNEL LINING CONSTRUCTION METHOD

• Main Authors: HARA HIDETOSHI, TANASE TOMIHIRO, INAGAWA YUKIHISA
• Format: Patent
• Language: English
• Published: 17.04.2008
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

PROBLEM TO BE SOLVED: To reduce a volume of concrete placed in a space in which a concrete placed state cannot be visually confirmed, and to facilitate visual confirmation in a region in which the concrete placed state can be visually confirmed, in tunnel lining construction. SOLUTION: A blow-up port 40 for supplying concrete 9 at high pressure is provided in an arch 13 being a part positioned below a ceiling 10 and adjacent to the ceiling 10 in a form 1A for tunnel lining. Pressure in the blow-up port 40 is sufficient for feeding the concrete 9 to be discharged from the blow-up port 40 above the form against gravity. A window 5c allowing the worker to observe the concrete 9 placed state is provided at the ceiling 10. Concrete is placed as horizontally as possible up to a position in which the concrete placing can be visually confirmed through the window 5c by using the form 1A. COPYRIGHT: (C)2008,JPO&INPIT