| 摘要 |
PROBLEM TO BE SOLVED: To provide a conduit repair method enabling an environment where a worker can perform work without being immersed into water to be attained in a conduit in a short time with simple process.SOLUTION: Firstly, an on-water work floor 10 floating on water inside a conduit P is installed in the conduit P. Next, on the on-water work floor 10, a lower part repair material 1A for repairing the bottom part of the conduit P is assembled. The assembled lower part repair material 1A is submerged from the on-water work floor 10. After that, on the on-water work floor 10, an upper part repair material for repairing a portion on an upper side with respect to the bottom part of the conduit P is assembled, and is connected to the lower part repair material 1A.SELECTED DRAWING: Figure 6 |
