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The traditional construction method of a nuclear power plant is to build a factory building and a containment, and then put the key structure into the containment. From the AP1000 project, the open-top construction scheme is adopted. The open-top method can quickly hoist key structure, but the construction process, tooling and other equipment need to be changed. It is challenging for units that have no open top construction experience. This paper simulates the overall assembly and hoisting construction of the bottom pool for a nuclear power project. For the overall assembled tooling, the design scheme is verified; for the overall lifting of the pool, the problem of the construction plan is discovered in advance, and the hoisting construction plan is improved.

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