Ihi Corporation

Noriyuki Katsuyama

Masaki Takahashi

Norio Uchiyama

Satoru Nagumo

Hiroshi Shiomi

A method for constructing a cylindrical tank which has a metallic inner tank and a concrete outer tank includes a step of building up a PC wall in an outer circumferential edge portion of a base plate, a step of assembling an outer tank roof on the base plate other than the outer circumferential edge portion of the base plate, a step of lifting the outer tank roof which is on the base plate using a jack-up unit while the PC wall is being built up and then holding the outer tank roof on the PC wall, and a step of assembling the inner tank independently of the outer tank roof in a space under the outer tank roof which is created due to the lifting.

Method for constructing cylindrical tank

A method of constructing a cylindrical tank that has an inner tank made of metal and an outer tank made of concrete has a step of building a PC wall () by erecting lateral liners () sequentially from the bottommost layer to the topmost layer on an outer circumferential edge portion of a base plate, and pouring concrete () so as to follow the erecting of the lateral liners () with the lateral liners () being used as an inner side forming frame.

Growing community of inventors

Tokyo, Japan

Noriyuki Katsuyama