Method for constructing cylindrical tank
AssigneeIHI Corporation
InventorsJuichiro YAMADA, Shigeki KATO
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Abstract
A method for constructing a double-shell-structured cylindrical tank having an inner tank and an outer tank includes: a step of, inside the outer tank, assembling a first structure of the inner tank excluding a lowermost level of the inner tank by alternately and repeatedly performing raising of an inner tank lateral plate using a jack-up unit and attaching of a next inner tank lateral plate below the raised inner tank lateral plate; a step of assembling a second structure serving as the lowermost level of the inner tank on an annular portion provided on a base portion of the outer tank and configured to support the inner tank; and a step of assembling the inner tank by joining the first structure and the second structure.
Claims5
A method for constructing a double-shell-structured cylindrical tank having an inner tank and an outer tank, the method for constructing the cylindrical tank comprising:
- a step of, inside the outer tank, assembling a first structure of the inner tank excluding a lowermost level of the inner tank by alternately and repeatedly performing raising of an inner tank lateral plate using a jack-up unit and attaching of a next inner tank lateral plate below the raised inner tank lateral plate;
- a step of assembling a second structure serving as the lowermost level of the inner tank on an annular portion provided on a base portion of the outer tank and configured to support the inner tank;
- and
- a step of assembling the inner tank by joining the first structure and the second structure.
Dependencies are inferred from the claim text.