| 摘要 |
<P>PROBLEM TO BE SOLVED: To inexpensively and easily perform height control in fixing a concrete panel to existing lining concrete without reducing the flow passage area of a tunnel. <P>SOLUTION: A precast concrete panel is attached to existing lining concrete by performing height control in a manner to interpose therebetween a spherical height control member composed of elastic material and having high deformation rate and a spacer composed of plate material such as resin and forming a predetermined clearance. <P>COPYRIGHT: (C)2013,JPO&INPIT |
