30 May, 2016
Completion of the Landside Impermeable Wall
Produced by Tokyo Electric Power Company Holdings, Inc.
Landside Impermeable Wall, or “frozen wall,” completed its construction on February 9, 2016 and started freezing from March 31, 2016. It is a system designed to create a frozen soil barrier around Fukushima Daiichi Units 1-4 to prevent water from flowing into the reactor basements.
TEPCO’s official movie briefly explains how it works and how it was installed on site.