CONSTRUCTING METHOD FOR LIFTING TYPE MARINE WORKING BASE

摘要

PURPOSE:To add a leg for adding efficiently to the upper end of a leg with a rack a long in the longitudinal direction by mounting the leg with the rack to a lifting type marine working base proper and suspending a platform, on which a crane is placed, up to the upper end section of said leg along said leg and fixing it. CONSTITUTION:The leg 1 is set up to the working base proper 2. The platform 3 is fixed to the leg 1, and the crane 4 is placed onto the platform 3. Fixation between the platform 3 and the leg 1 is released, a suspending cable 7 is wound by means of a winch 8, and the platform 3 is lifted up to the upper end section of the leg 1 along the leg 1. The leg 1 is provided with the rack along the longitudinal direction. The platform 3 is fixed to the leg 1, the leg 34 for adding is placed onto the upper end of the leg 1 by means of the crane 4, and the leg 1 and the leg 34 are joined. The platfom 3 is thereafter lifted up to the upper end section of the leg 1 legnthened, and the legs 34 are added through the repetition of the same process.