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    • 6. 发明专利
    • BASE ISOLATION PLANT
    • JPH11336096A
    • 1999-12-07
    • JP14873898
    • 1998-05-29
    • KAJIMA CORP
    • OMIKA YUKIHIROSUGITA AKIRAMIURA YOSHIKATSUKAWAGUCHI YOSHIOUENO KAORUMASHIMA MITSUO
    • E02D27/44
    • PROBLEM TO BE SOLVED: To improve earthquake-proofness by a method wherein production facilities or the like are constructed on an artificial ground in base isolation structure that is constructed with one production line of a chemical plant being unitized. SOLUTION: Each of production facilities is constructed on an artificial ground 1 in base isolation structure that is constructed for each of production lines of a chemical plant. The ground 1 is supported with laminated rubbers 10 respectively covered with fireproof coating and base isolation devices 12 in plain bearing structure that are provided individually on top of pillars constructed respectively on foundation piles 8 and in a double structure that is composed of an upper slab 1a and a lower slab 1b while being partly serving as load adjustment pits 14 with sands, blocks or water being contained therein, or as water tanks 15. Anchor boxes are provided at the slab 1a for being used at installation or replacement of facilities while pipings are arranged with pipe supports provided at the underside of the ground 1, and an automatic shut-off device 33 working at the time of a large-scale earthquake is provided at a gas inlet piping and furthermore, parking lots and stockyards are provided between the ground 1 and the ground surface. Thereby, economical earthquake-proof designing becomes possible with seismic force and deformation of facilities reduced and damages by collapse or fire lessened.