General Discussion
In reply to the discussion: Michio Kaku on Pacifica Radio 5/11 - status of #4 reactor - dire situation at Fukushima [View all]Bonobo
(29,257 posts)The earthquake that hit was perhaps the 3rd largest earthquake in recorded history and it did not fall.
Also:
http://www.tepco.co.jp/en/nu/fukushima-np/f1-roadmap/11043001-e.html
Installation of support structure under the spent fuel pool of Unit 4
Apr 30, 2011
Tokyo Electric Power Company
■Objectives
Since the walls of the reactor building, Unit 4 are severely damaged, we have been evaluating the seismic capacity to confirm the soundness of the building. As the result of the evaluation, we have decided to install support structure under the spent fuel pool to enhance safety of the building.
■Work Overview
- Install steel support under the spent fuel pool to sustain the weight above
- To secure its function, install concrete wall and fill up grout between the concrete wall and the bottom of the spent fuel poll
■Schedule
We are now developing detailed work plan and plan to start the preparation work from early May. Then, we will start the main work from mid-May and complete it at the end of July. We expect to finish the installation of steel support by mid-June. Thereafter, we can anticipate that the load will be decreased.