| 摘要 |
PURPOSE:To accomplish the supporting of a working scaffold easily and accurately while improving the working efficiency by supporting the scaffold with an independent zone provided in a tank. CONSTITUTION:A plurality of independent zones are provided in a tank 1. A working scaffold 6 is maintained horizontal with a hanging rope 4 from the independent zone 3. In addition, a ceiling truck 8 able to travel along a rail 6' is placed on the scaffold 6 so that lining work outside the independent zone is handled. After the end of the work, lining work within the zone is conducted following the removal of the scaffold. Therefore, the working scaffold 6 can be supported easily and accurately while lining work can be conducted in a desired procedure without being disturbed by the supporting section for the scaffold. In this manner, the working efficiency can be improved. |
