ASSEMBLY TYPE TEMPORARY STRUCTURE FOR TUNNEL WORK

摘要

PURPOSE: A prefabricated temporary structure for tunnel construction is provided to enable multiple workers to simultaneously perform works because the temporary structures are consecutively installed along the inner wall of a tunnel. CONSTITUTION: A prefabricated temporary structure for tunnel construction is installed to be located between the inner wall of a tunnel(1) and a facility limit line(2). Multiple bar-shaped supports(10) are installed in a truss structure. Connection joints(20) are installed on the connected parts of the bar-shaped supports. The connection joints have an adjustable length or angle to change the shape of the temporary structures depending on the shape of the tunnel.