Studies on the Container for Disposing Radioactive Wastes into the Sea-III:Experiments of Throwning Mortar Containers into the Sea (1)

概要

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When a great number of containers for the disposal of radioactive wastes were discarded into the sea at depths below 2, 000m safty methods of disposal were investigated.<BR>Containers of drum size and model mortar containers were thrown into the sea and the terminal velocity was calculated from the records of falling containers by means of an echo-sounder. From these data it was found that in case the container is thrown in its sidelong position at the beginning of throwning the terminal yelocity of the container is almost identical with the value calculated. Furthermore in the testing tank tests of throwning small cylindrical mortar containers are performed and the falling state and distribution of points, whereat containers reached on the floor, were observed.<BR>In case of throwning containers into the sea crack load of the containers and shock load given to the containers when they reached on the sea floor were calculated by changing dimensions and contents and states of the sea floor respectively and the safty velocity, at which no crack forms in the containers at the instant, when the containers reached on the sea floor, was found by calculation.
日本海洋学会の論文