| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a curing method capable of preventing dryness, shrinkage and cracking of concrete occurring in the process of curing of tunnel lining concrete.SOLUTION: Cure is performed so that humidity W of the inside 10 of a tunnel in a section where concrete has just been installed is kept at a prescribed level since immediately after installation, with the use of water spray means 2 to be installed on a hollow cross section of tunnel lining concrete 40 immediately after installation, a humidity sensor 31 for measuring humidity W of an air within the tunnel, and control means 3 for automatically managing a humidity state within the tunnel.</p> |
