| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction method of PC-metal double shell tank which has an inner tank of a metal inner tank shell at the inner side of an outer tank sidewall of the pre-stressed concrete structure, in which the inner tank is constructed by introducing a steel sheet for forming the side wall of the inner tank, which has a plane or generally arc-like shape, from a material feeding port which is formed in the outer tank sidewall, the construction method enables a closing work of the material feeding port to be completed in a short time by forming the material feeding port as small as possible.SOLUTION: A material feeding port 10, which is an opening larger than the camber of a steel sheet, is formed in a tangential direction of a side wall steel sheet 4 (including designed to be formed) of an inner tank 2 as viewed in a cross-section. A steel sheet 4a is introduced through the opening of the material feeding port 10, and is positioned at a predetermined position of the inner tank 2 of a metal inner tank shell to construct the inner tank 2.SELECTED DRAWING: Figure 1 |
