June 1st, 2016
TEPCO reported last week that roughly 10% of the frozen wall is not working. Currently only certain sections are being actively frozen with other sections to possibly be frozen as they determine the cause and effect of the initial work.
One of the sections being frozen with some problems is near unit 1 on the sea side. TEPCO claimed that accumulated groundwater and gravel in the area may be contributing to the problem. TEPCO also indicated the wall is “riddled with holes”. These problems appear to be delaying the start for freezing of other sections of the wall. One action being considered is to put cement or other solidification agents in the problem areas. We looked at these problem areas and what factors may be playing a role.
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