Ex-nuclear engineer’s proposal Mar23

A former nuclear power plant engineer Yuzo Uehara continues to raise his voice to act immediately to solve the crisis at Fukushima Daiichi Nuclear Power Station.
These are some of the tweets he made today.

福島原発への低減0730;4日前から発信のカルバート工法はコンクリートでなくコンテナを並べる・積む・ひとつでもあれば高線量の遮蔽・低減、除染がで き並べてアクセス通路に。鉛を外装・内装すれば高い線量現場に近接して設置できる。そこに大口径配管ラーダをもうければ注水が大量で精度よい。

Proposal 0730: In the culvert method, I’ve been proposing since 4 days ago, use not concrete but containers and line them up, then pile them up. Even if there were only one, it can block, reduce, and decontaminate radiation. Line them up and make accessing paths. If you install lead outside and inside, you can install them near the high radiation sites. If you put a large diameter pipe ladder there, you can pour water in large amount and precisely.

福島原発231840;好転するが、被ばく遮蔽と低減を図からねば。注水と復旧工事もっと迅速化できる。安全最優先すると同時に工事進捗できるカル バート工法(コンクリート又はコンテナ利用)。鉛等装着すれば極めて高い線量でも対応できる。現地復旧工事がもっと多方向から着手できせめられる。

Proposal 231840: The situation would get better, but we have to do something to block and reduce radiation. We can make pouring water and recovery work quicker. With the culvert method (using concrete or containers), we can give safety the first priority as well as make progress in work. If lead and such were installed, we can work under higher radiation. Recovery work at the site can get done from the various directions.

災害当初より予測して、原発設計OBとして現地一点にマンパワーと機材集中する具体的な方法をコンテナ等利用のカルバート工法やキャスク・キャリア工法として提言。今、カルバート工法は有効。速く関係者は同様なもの発想して欲しいです。

From the beginning of the disaster, as an ex-nuclear plant designer, I calculated and proposed a specific idea that gets every manpower and equipment together into the site with the culvert method using containers or such and the Carrier/Cask Handling System. The culvert method is effective now. I want those who involved get an idea like this quickly.

福島原発232030;遮風壁は建物の1,5倍の高さで遮風壁内の風速は三分の一に。サイトの陸側離れた場所にたてば外部への汚染限定。定期にサイト内を ヘリ散水。サイト地面線量あがるがカルバート内でアクセス。海に流れぬよう溝必要。遮風壁は網でよく高さ60m。ヤマセ対策みよ。

Proposal 232030: If wind block walls were 1.5 times higher than a building, the wind speed decreases to 1/3 with in the walls. If they were set up somewhere in the inland side and away from the site, we can limit contamination to the outside. Regularly pour water from a helicopter at the site. Ground radiation at the site would go up, but we can access through the culvert. Ditches are required to prevent water from flowing out to the sea. Wind block walls can be nets with 60m high.

I urge the international community to endorse his proposal or present better ideas to solve the crisis NOW.

2 thoughts on “Ex-nuclear engineer’s proposal Mar23

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  2. Yohak says:

    I really like good ideas like these ones.

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