| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a precast plate which eliminates the slight possibility of a cover body falling off. <P>SOLUTION: A precast plate includes a rectangular precast plate body 1, and a cover body 3 to be fitted in a rectangular recess 2 formed in the center of the surface of the precast plate body 1. The recess 2 is provided with a metal plate 4 at the bottom, and a hole 5 passing through the plate 4 and the precast plate body 1 at the center. The cover body 3 is provided with a recess 7 for accommodating a nut at the center of the rear face. The plate 4 is provided with a projecting rod 6 at the surface. An insertion hole 8 for the projecting rod 6 is provided in the rear face of the cover body 3. The cover body 3 is fitted in the recess 2 of the precast plate body 1 installed on the slope S. The projecting rod 6 of the precast plate body 1 is inserted in the insertion hole 8. An adhesive B filled in the insertion hole 8 is solidified so that the integration of the precast plate body 1 and the cover body 3 is enhanced. <P>COPYRIGHT: (C)2013,JPO&INPIT |
