| 摘要 |
PROBLEM TO BE SOLVED: To simplify the contents of works, to shorten the work time, to reduce the amount, weight and size of equipment and materials, and to facilitate acquisition of technique. SOLUTION: In a joint part between the existing tunnel 1 and a newly constructed tunnel 2, a visible light curable resin holding sheet 6 is stuck to the concrete inner surface of the existing tunnel, and after the resin is cured by light irradiation, the newly constructed tunnel 2 is joined to the existing tunnel 1. COPYRIGHT: (C)2006,JPO&NCIPI
|
