METHOD OF CONSTRUCTING DRY WELLS AND METHOD OF BUILDING REACTOR CONTAINMENT VESSELS

METHOD OF CONSTRUCTING DRY WELLS AND METHOD OF BUILDING REACTOR CONTAINMENT VESSELS

PROBLEM TO BE SOLVED: To provide a method of constructing a dry well, which shortens time required for applying protective measures against wind and rain to efficiently construct modules for the dry well and bring the same into a reactor containment vessel, and to provide a method of building a reac...

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Bibliographische Detailangaben
Hauptverfasser: KAWAKAMI SHINJI, MORISONO TAKUYA, MATSUO TETSUO, HAYASHIDA KOSUKE, UCHIDA YUTA
Format: Patent
Sprache:eng
Schlagworte:
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method of constructing a dry well, which shortens time required for applying protective measures against wind and rain to efficiently construct modules for the dry well and bring the same into a reactor containment vessel, and to provide a method of building a reactor containment vessel using the same.SOLUTION: A method of constructing a dry well (upper dry well 26) of a reactor containment vessel 16 includes the steps of; placing a spray pipe 52 to be attached to a tabular top slab liner 30, which makes up an upper end of the dry well, at a predetermined location in an on-site assembling yard 64; placing the top slab liner 30 in the on-side assembling yard 64 and attaching the spray pipe 52 onto a lower surface of the top slab liner 30; and hoisting the top slab liner 30 together with the spray pipe 52 to mount the same at a position to be the top end of the dry well.