I created a short video summarizing the construction process from ground works to installing the panels.
Friday, September 26, 2014
Solar panel installation (Part 2)
Sunday, September 21, 2014
Solar panel installation (Part 1)
Next, lift the pipe up onto the frame and attach it there. This was a bit of a memorable moment in the history of Oo solar sharing plant: The very first panels were mounted on the frame:
And they turn around! Here's Matsuoka-san checking the tilting mechanism:
Yesterday, Sept. 19, most panels were already installed:
パネル取り付け(その1)
架台の工事が終わり、パネルの取り付けが始まりました。
Tuesday, September 2, 2014
Construction continues: beams and braces
(Japanese article is here.)
The construction has quite progressed last week.
For my fellow non-engineer non-native speakers who are as clueless about beams and braces as I am, here's how I understand it. I hope it's right:
基礎工事完了、梁+筋交いの取り付け開始
(英語の記事はこちら。)
先週一週間で工事がずいぶん進みました。
Monday, August 25, 2014
Construction started!
(Japanese article is here.)
Construction of our power plant have finally started!
Ground works began - quite obviously - with bringing in the equipment and materials.
This is picture from August 18, the morning of the first day of construction - a machine is standing lonely in the middle of the field waiting for the work to start.
So what exactly is going on? With this machine, workmen dig up holes in the ground and place metal pipes vertically inside them. They fix position of the pipes temporarily with diagonal and horizontal pipes. The long vertical pipes are pillars that will support the whole framework. They are 4 meters long, of which 1 meter is under the ground.
After several pipes are raised and their position fixed, concrete is cast into the holes. More precisely, the lower 20 cm of the underground part of the pipe are covered with soil, the next 50 cm with concrete, and the upper 30 cm again with soil.
Once this is done, the pipe is fully fixed and the temporary diagonal pipes can be removed.
Temporarily fixed pipe:
This is the view after casting the concrete:
And finally the concrete layer is covered with soil (= This pillar's foundation is completed):
So that's how construction is progressing right now. With more than 50 pillars altogether, it'll take some time to finish.The workmen are doing great job in 35 degree heat!
Saturday, August 23, 2014
基礎工事スタート!
(英語の記事はこちら。)
今週から発電所の基礎工事が始まりました!
当然と言えば当然ですが、重機と材料を運んでくるところからのスタートです。
工事初日8/18の朝の様子 ―― 一台の重機がぽつんとおいてあります。乗ってみたいなと思いました。
この重機で穴を彫って、その中に単管パイプを立てておいて、斜めのパイプ、そして横のパイプで仮固定します。縦のパイプは全体の構造を支える柱となります。パイプの長さは4メートル、そのうち地下に埋める部分は1メートルです。
パイプを何本か立てたら、穴にコンクリートを流し込んでいきます。正確に言うと、パイプの埋める部分の下20センチは土、中部の50センチはコンクリート、上の30センチはまた土、という具合です。これでパイプが完全固定されるので、仮固定の斜めのパイプは後ではずします。
仮固定されたパイプ:
コンクリートを流し込んだ後の様子:
コンクリートの上に土をかぶせた後の様子(この柱の基礎が完成):
こんな感じで工事が進んでいますが、柱は全部で50本以上あるので、時間のかかる作業です。作業員の方は、35度の暑さで頑張ってくれているので本当に感謝です。
Tuesday, August 12, 2014
"Oo" Schedule Update 2
(Japanese article is here.)
Here's an update on our project.
おお発電所 ロードマップ更新2
(英語の記事はこちら。)