Tepco to investigate the operating floor of reactor2 by drilling from the top of the building

Note : If you are from the international mass media, Don’t read this site before having a contact with me.



From 1/27/2014, Tepco is going to drill 12 locations on the top of reactor2 so that they will investigate the operation floor of reactor2. Reactor2 building remains relatively sound. It is not known what actually happened in 311.

The purpose of this investigation is to research the radiation level, check the soundness of crane, refueling machine and the building.

Drilling and monitoring will be operated by remote-control, however, the necessary machines will be installed by human workers. According to Tepco, the highest reading on the top of the building is 4.0 mSv/h.

Tepco also have robots enter the operating floor from blow-out panel. The robots are to drill 3 parts of the floor and wall to take 3 concrete core samples.

The highest reading on the operation floor is 880 mSv/h. They are to analyze how deep the contamination penetrated into floor and wall concretes.





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Français :

Tepco va explorer l’étage opérationnel du réacteur 2 en forant le toit du bâtiment
Note : Si vous êtes de la grande presse internationale, ne lisez pas ce site sans avoir préalablement pris contact avec moi.


A partir du 27 janvier 2014, Tepco va forer 12 points dans le toit du réacteur 2 pour pouvoir explorer l’étage opérationnel du bâtiment. le bâtiment du réacteur 2 demeure relativement fiable. On ne sait pas en fait ce qui s’est réellement passé dedans en mars 2011.

Le but de ces explorations est de déterminer le niveau de radioactivité, de tester la fiabilité de la grue, de réalimenter la machine et le bâtiment.
Les forages et explorations seront effectués à distance, cependant, l’outillage nécessaire devra être installé par des travailleurs humains. Selon Tepco, le record relevé en haut du bâtiment est de 4,0 mSv/h.
Tepco a aussi fait entrer des robots dans l’étage opérationnel par des panneaux éclatés. Les robots vont forer en 3 endroits du sol et des murs pour prendre 3 échantillons de béton.
Le record relevé à l’étage opérationnel a été de 880 mSv/h. Ils vont analyser à quel point la radioactivité a pénétré dans le sol et les murs en béton.


Merci de lire le Fukushima Diary. Votre soutien est l’énergie de mon travail opiniâtre.

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.


January 2014