NUCLEAR REACTOR BUILDING FOUNDATION STRUCTURE OF NUCLEAR POWER PLANT

摘要

PPROBLEM TO BE SOLVED: To increase percentage of building grounding of a nuclear reactor building without depending on enlargement of a planar dimension of a foundation of a nuclear reactor building of a nuclear power plant. PSOLUTION: The nuclear reactor building 5 includes: reactor containment vessel 1 having a nuclear reactor pressure vessel 3, a machine room 7 arranged around the reactor containment vessel 1, a nuclear reactor building foundation 2 supporting the reactor containment vessel 1 and the machine room 7. Two or more piles 6 are formed on a lower part of the nuclear reactor building foundation 2. The piles 6 are integrally formed with and dispersed in the nuclear reactor building foundation 2, which contributes an increase in the percentage of building grounding. Among the piles 6, a pile arranged at the center portion in a horizontal direction has a length shorter than that of a pile 6 arranged at the periphery portion in a horizontal direction. PCOPYRIGHT: (C)2011,JPO&INPIT