日本东京电力公司8月27日宣布，福岛第一核电站3号反应堆压力容器底部存在最大直径约3米的椭圆形大洞 1。这一发现是东京电力公司于今年3月将超小型无人机送入该反应堆压力容器底部进行拍摄，并通过图像立体复原分析得出的 1。
据悉，该压力容器为钢铁制，内径为5.5米，底部厚14厘米 1。2011年的地震和海啸导致福岛第一核电站全部6个机组中的1至3号机组堆芯熔毁，形成约880吨强放射性核残渣 1。东京电力公司计划最早于2037财年开始从3号机组反应堆大规模取出核残渣 1。
Tokyo Electric Power Company (TEPCO) announced on August 27, 2026, that a large elliptical hole with a maximum diameter of approximately 3 meters has been found at the bottom of the No. 3 reactor pressure vessel at the Fukushima Daiichi Nuclear Power Plant 1. This discovery was made through three-dimensional reconstruction analysis of images captured by an ultra-small drone deployed into the bottom of the vessel in March of this year 1. The steel-constructed pressure vessel has an inner diameter of 5.5 meters and a bottom thickness of 14 centimeters 1.
The meltdowns in Units 1 through 3 of the plant's six reactors, triggered by the 2011 earthquake and tsunami, resulted in the formation of approximately 880 tons of highly radioactive nuclear residue 1. TEPCO plans to begin the large-scale extraction of the nuclear residue from the No. 3 reactor unit as early as fiscal 2037 1.
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