METHOD FOR INCORPORATING WATERPROOF AND HEAT INSULATED TANK INTO SUPPORTING STRUCTURE OF SHIP AND FABRICATION METHOD OF HEAT INSULATED CAISSON FOR USE IN WATERPROOF AND HEAT INSULATED TANK

摘要

PROBLEM TO BE SOLVED: To provide a tank having a heat insulated caisson of a simple construction at low costs, while its improved heat insulating characteristics are being exhibited. SOLUTION: Two continuous waterproof barriers are provided, and one of them is a first barrier in contact with products stored in a tank, while the other one is a second barrier set between the first barrier and a support structure. Each of the barriers comprises a large number of parallelepipedic caissons 102, and each of the caissons has a bottom panel 105 and a top panel 106 each made of a plywood. The caissons are spaced apart, from one another, by means of a spacer piece 103. Each of the caissons is partially filled with a block of foamed plastics 104 formed along the height of the piece 103.