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    • 9. 发明专利
    • A method for manufacturing a seismic isolation foundation bottom
    • JP5376848B2
    • 2013-12-25
    • JP2008173588
    • 2008-07-02
    • 株式会社熊谷組
    • 孝一 佐藤誠治 金森英 野中
    • E04H9/02E04G23/06
    • PROBLEM TO BE SOLVED: To easily manufacture a lower section of a base-isolated foundation with a high degree of horizontal accuracy of a base plate. SOLUTION: In this manufacturing method, the base plate is positioned in an upper portion in a form by supporting the base plate on a base; concrete for forming a concrete section is placed in the form; and subsequently, mortar for forming a mortar section is infilled between a top surface of the concrete section and an undersurface of the base plate, so as to manufacture the lower section of the base-isolated foundation. A variation in a bleeding amount associated with a lapse of time after the placing of concrete for use in the formation of the concrete section is observed; a mortar placing reference time A, at which the bleeding amount until the time E of the completion of the bleeding retrospectively from the time E of the completion of the bleeding of the concrete is set at 0.03 cm 3 /cm 2 , is predetermined; and in the manufacture of the lower section of the base-isolated foundation, the mortar is placed on the top surface of the concrete until a lapse of predetermined time from the mortar placing reference time A. COPYRIGHT: (C)2010,JPO&INPIT