Treated water of The Tokai Reprocessing Plant used for cooling water and fire fighting water, is supplied by the steel pipes. These pipes are laid down under the ground or in the trench. Treated water had leaked, because the part of the underground pipe flange corrosion. The cause of this breakage was presumed that the pipe flange has been loaded the stress continuously. The stress generated depend of that the underground pipes sank with the ground subsidence by influence of the 2011 earthquake of the ...
英字タイトル:
Adaptation of the Treated Water Pipe Maintenance Technology useing Clamp

Off-gas of Tokai Reprocessing Plant, including gaseous radio-active elements, has been emitted from main stack after through exhaust duct. There were corrosion and crack at the part of the iron exhaust duct near the main stack. Repairin g method was planned to be used iron plate covering the corroded and cracked area, which would be attached and welded. To take into considering of reducing the weight of the attachment, much lighter materials namely carbon fiber reinfo rce polymer, CFRP, was applied except ...
英字タイトル:
Adaptation of the main duct maintenance technology used by Carbon Fiber Reinforce Polymer (CFRP)