| 摘要 |
PROBLEM TO BE SOLVED: To provide a duct replacement method capable of replacing an outdoor duct penetrated through a turbine building, without stopping air intake and discharge for the turbine building.SOLUTION: This duct replacement method is a method of replacing the first duct 62 extended from the first building (turbine building 14) toward an outdoor side, and the second duct 84 connected to the first duct 62 in the outdoor via the third duct 70, and penetrated through the second building (nuclear reactor building 12), and the first duct 62 and the second duct 84 are replaced after forming the first closed space 96 sharing, as a boundary, the periphery of a portion penetrated with the first duct 62 in an inner wall 14c of the first building, in an inside of the first building, and after forming the second closed space 100 sharing, as a boundary, the periphery of a portion penetrated with the second duct 84 in an inner wall 12c of the second building, in an inside of the second building. |
