FORM SYSTEM FOR CONSTRUCTING THE ELBOW SECTION OF AN UNDERGROUND CHANNEL, FOR IMPROVING THE WORKABILITY ON INJECTING AND SOLIDIFYING CONCRETE BY SEPARATING FROM A LINING WALL AND MOVING AND FIXING TO THE NEXT PLACING SITE EASILY

摘要

PURPOSE: A form system for constructing the elbow section of an underground channel is provided to improve workability for constructing a channel on the elbow section by separating from a lining wall, moving curvilinearly easily to the next placing site and fixing on the excavation ground easily. CONSTITUTION: The form system for constructing the elbow section of an underground channel contains: an elbow guide unit(100) forming a basic skeleton continued along the excavation ground(20) of the elbow section and joined/fixed to make many steel beams form the square framed section; a lower support unit(200) supporting the lower end of the elbow guide unit(100) laterally and provided with an incline support unit(220) having an angle of inclination from the backside; an upper support unit(300) fixing the upper end of the elbow guide unit(100) horizontally on the excavation ground(20); and a movable support unit(400) forming a cylindrical lateral wall(410) around the elbow guide unit(100) to form the inside of a channel, and containing a square frame(420) housing the square frame of the elbow guide unit(100) and a movable roller connected to the elbow guide unit(100) form the inside of the square frame(420).