| 摘要 |
PROBLEM TO BE SOLVED: To achieve cutting work of pressure pipes and dismantling and removing work of a reactor body in parallel by withdrawing only pressure pipes downward in advance by using a simple facility. SOLUTION: A tentative tank placed at a part of building concrete floor downward the reactor body and injected with water, a storage shelf of pressure pipes placed in the tank, a cutting work stage of the pressure pipes, a cutting device for the pressure pipes, disposal vessels of the pressure pipes, a pressure pipe handling device placed at the upper part of the tentative tank, a first wire hung from the first dolly for work and a second wire hung from the second dolly for work are provided. The pressure pipes are withdrawn from the reactor body with the first wire and the second wire and the pressure pipe handling device, and stored on the storage shelf. COPYRIGHT: (C)2006,JPO&NCIPI
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