FIELD MEASUREMENTS AND NUMERICAL ANALYSYS ON WINDORIGINATING TENSILE FORCE ACTING ON COVER SHEETS FOR TEMPORARY STRAGE SITES OF DECONTAMINATION WASTE

Abstract

Gas-permeable/waterproof sheets (GPWSs) have been applied as cover sheets for temporary storage sites of decontamination waste due to the Fukushima nuclear accident. In this study, we measured direction and velocity of wind in a real temporary storage site. In the site, tensions of cables that were connected to several points of GPWSs as the cover sheets were also measured to estimate wind-originating tensile force acting on cover sheets. Furthermore, numerical analysis based on these filed measurements was also made to investigate relationship between wind velocity and the tensile force in the temporary storage site with an average shape.