The robotic equipment failed. So they sent up humans for 4 days to finish the job.
Tepco needs a serious review over the initial dismantling plan for Fukushima.
Some weird stuff is happening at the TEPCO’s Fukushima Daiichi Nuclear Power Plant right now. While Japan has decided to drop radioactive water in the ocean, Tepco sent humans to repair where robots failed.
On December 3, workers were sent to the top of the exhaust stack (about 110 meters high) standing beside the Unit 1 and 2 buildings to finish cutting a cylinder body with an electric tool after the robotic infrastructure failed.
地上110mで人力による排気筒解体に挑む作業員さん(筒の左側。双葉町より望遠で山川撮影) pic.twitter.com/Jj3sW4elhi— 東京新聞 原発取材班 (@kochigen2017) December 3, 2019
The workers at the top of 110-m high Fukushima Dai-ichi vent stack were exposed to an estimated 810 μSv, making this action an emergency response.
TY— microcarpa (@microcarpa1) December 6, 2019
Also thank #Tokyo Newspaper crew for detailed info(in #Japanese).https://t.co/v1rdBAioH6
Current air dose around working area of the stack(110m)is much lower than basement where> 10 Sv/h,2013
0.81 mSv=810 μSv exposure for 3 x 2 worker teams in recent total 6.5 hrs' missions. https://t.co/xyWcCTYvLy
But officials first said radiation would not be above 300 μSv:
Dec.3: Workers at the top of 110-m high #Fukushima Dai-ichi vent stack to fix/refuel the stalled equip for remotely controlled dismantling.— microcarpa (@microcarpa1) December 3, 2019
They risk #radiation exposure of an estimated 300 μSv.
Pray for safety and a successful work.
Appreciate #Tokyo Newspaper's reports.#脱原発 https://t.co/Pmd0uY7OnP
According to TEPCO, the workers cut 1.1 meters out of the remaining 1.3 meters. The work resumed on Dec. 4 early morning due to forecast of strong winds.
Within the six hours of work, the workers were wearing masks covering their entire face to protect them from radioactive substances. According to officials, they were exposed to a maximum dose of 0.47 mSv.
The cylinder body of the exhaust pipe will be cut into 2-4 meter pieces at a time and should be halved around next March (60 meters). Let’s hope that the robotic saw blade will not fail again!
Meanwhile Fukushima radiation dust is still coming in… And that’s not good for the Olympic Games 2020:
Oct,Nov,2019：#Greenpeace #Japan detected 71 μSv/h(surface),1.7 μSv/h(1m) near J-Village,#Tokyo #Olympic torch relay to start from.— microcarpa (@microcarpa1) December 4, 2019
Dec.3.Govt confirmed the #radiation doses & re-cleaned up the area,located 19 km south of #Fukushima Dai-ichi.
Radioactive dust keep coming in? https://t.co/3phf2VVCIc