Tepco considers to fill Torus room with grout to stop ground water flowing in

On 5/30/2013, Fukushima Diary reported “Tepco to consider freezing ground for 1400m to stop ground water flowing into the plant [URL]”

Additionally, the committee of experts suggested Tepco to fill the torus room with grout.

They state it stops ground water flowing into the plant.

Tepco plans to conduct the feasibility study with United States Department of Energy this year.

However, they need to evaluate if it doesn’t affect installation of the PCV circulating coolant system and the entire decommissioning plan.

They assume it takes 1.5 years to make planning, and 2 years to inject the grout material. (3.5 years in total)

The committee points out the benefit of using grout is it doesn’t directly touch the molten fuel. However, it hasn’t been confirmed that the fractured molten fuel is not really in the torus rooms.

 

Tepco considers to fill Torus room with grout to stop ground water flowing in

 

http://www.tepco.co.jp/nu/fukushima-np/roadmap/images/c130530_03-j.pdf#page=25

 

 

In future, spring of 2013 will be recalled as the calm before the storm.

_____

Français :

Tepco envisage de noyer la salle du tore dans du béton pour arrêter l’infiltration des eaux souterraines

 

Le 30 mai 2013, le Fukushima Diary publiait Tepco envisage de congeler le sol sur 1 400 m pour empêcher l’eau d’inonder la centrale

De plus, le comité d’experts a suggéré à Tepco de remplir la salle du tore avec du béton.
Ils affirment que ça arrêtera l’inondation de la centrale par les eaux souterraines.
Tepco prévoie d’en faire l’étude de faisabilité cette année avec le United States Department of Energy.
Ils ont cependant besoin d’évaluer l’impact sur l’installation du système de refroidissement de la PCV (enceinte de confinement primaire) et sur la totalité du plan de démantèlement.
Ils affirment qu’il faudra 1 à 5 ans pour en élaborer le planning et 2 ans pour injecter le béton. (3 à 5 ans au total)
Le comité met en avant les avantages du béton qui ne touche pas directement le combustible fondu. Il n’a cependant pas été confirmé que le combustible en fusion n’est pas en réalité descendu dans la chambre du tore.

Tepco considers to fill Torus room with grout to stop ground water flowing in

http://www.tepco.co.jp/nu/fukushima-np/roadmap/images/c130530_03-j.pdf#page=25

Dans le futur on se rappellera de 2013 comme du calme avant la tempête.

About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.

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