METHOD FOR CONSTRUCTING TRIPLE-SHELL TANK

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METHOD FOR CONSTRUCTING TRIPLE-SHELL TANK

This abstract first appeared for US patent application 18724085 titled 'METHOD FOR CONSTRUCTING TRIPLE-SHELL TANK

Original Abstract Submitted

A method for constructing a triple shell tank including an inner tank, an intermediate tank, and an outer tank each having a roof and a side plate includes the following procedure. As construction entrances, a first construction opening is opened in an outer tank side plate, a second construction opening is opened in an inner tank side plate, and a third construction opening is opened in an intermediate tank side plate, each during the installation of the corresponding side plate. The construction openings are opened so as to partially overlap with one another in a circumferential direction and a height direction of the triple shell tank. The first construction opening and the second construction opening are opened so as to satisfy a relationship AR≥AR, where AR is an opening area of the first construction opening and AR is an opening area of the second construction opening.