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2010年6月11日 (金)

Construction company plans to build floating eco-friendly city in equatorial waters

清水建設はスラチャイの勤務した会社の2~3倍くらいの売上高を誇る日本一のゼネコンでした。
名前の清水とは裏腹にやってることは泥水、JVの現場で喧嘩して会社を辞める覚悟でプロジェクトから撤退させてもらったことがあります。
でもこの夢の構想はすばらしい。
まさにスラチャイが求めていたものと完全に一致します。
実現は多分不可能でしょう。
自然はそんなにあまくない。
夢物語です。

srachai from khonkaen, thailand

(Mainichi Japan) June 11, 2010
Construction company plans to build floating eco-friendly city in equatorial waters
夢の構想で閉塞打破を=科学環境部・山田大輔
 <エコ・エコ>

Japanese construction giant Shimizu Corp. plans to build a gigantic residential tower that will float in waters near the equator in an attempt to open the door to new environmental solutions.

The construction firm aims to build a futuristic floating residential quarter in the ocean near the equator within the next 15 years, in association with leading brokerage Nomura Securities Co. and the Super Collaborative Graduate School association -- a joint academic project of 14 Japanese universities.

The tower -- which will be around 1,000 meters in height and 2,000 to 3,000 meters in diameter -- is designed to be a complete self-sufficient community that can accommodate some 30,000 to 50,000 residents.

The residential space will be located in the upper 300 meters of the structure, where on the equator, there are no strong winds, nor is there a need for air-conditioning, with average temperatures hovering around 26 and 28 degrees Celsius throughout the year. Every facility on the floating island will be accessible on foot. Shimizu proudly describes it as the "ultimate compact city."

The bowl-shaped top of the tower is for collecting and storing rainwater, and household waste from residents will be recycled and used at a plant factory located on the building's mid-level floors and on a marine farm to be constructed along the coastline.

According to Shimizu, temperature differences between upper and lower levels of the building creates natural air circulation, and the tower can generate electricity without producing carbon dioxide by using solar power and ocean thermal energy conversion technologies.

"We would like to make it a utopia that belongs to no particular state," says Makoto Kajitani, director of the Super Collaborative Graduate School project director and president of the University of Electro-Communications in Tokyo.

Shimizu Corp. President Yoichi Miyamoto stresses that the initiative is aimed at breaking through the feeling plaguing young Japanese that the world cannot change. According to Osaka University President Kiyokazu Washida, today's young people" have never experienced having a better tomorrow in their life." Shimizu said he launched a project team mainly consisting of young employees and made them draw up the innovative concept from scratch.

The Japanese government has also announced that it will promote innovations in environmental technologies as a main pillar of the country's growth strategy. As seen in the example of the U.S. Apollo mission, technological breakthroughs can only be achieved by setting out ambitious and specific goals.

Japan's new Prime Minister Naoto Kan, known for being one of the rare ministers who graduated from an engineering institute, also expressed his concerns over the sense of stagnation that exists among the public during his inaugural press conference on Tuesday. His leadership ability will be tested in the coming days as his government hopes to stimulate economic growth through technological evolution.

 巨大タワー(高さ1キロ、直径2~3キロ)を赤道直下の洋上に浮かべ、3万~5万人が暮らす完全自給都市を造ろう--。大手ゼネコンの清水建設の提唱に、全国14大学の連合体「スーパー連携大学院協議会」と野村証券が5月に賛同した。夢物語のような構想だが、15年後に実現させる動きが始まった・清水建設提供。

 構想では、地球温暖化など環境問題の一挙解消を狙う。タワーの上から300メートル分の居住区は、赤道直下では強風がなく、気温が一年中26~28度で空調が不要。どこでも歩いていける距離で「究極のコンパクトシティーになる」と説明する。

 すり鉢状の頂上部で雨水を集め、家庭の生ゴミや廃棄物を資源化して、タワー中層階の「植物工場」や沿岸部の「海洋牧場」で食料自給に使う。上下端の温度差で空気は自然循環し、太陽熱利用や海水の温度差発電などで二酸化炭素の排出ゼロも可能という。洋上をゆっくりと回遊する、なんとなく「草食系」の未来都市に、協議会委員長の梶谷誠・電気通信大学長は「どこの国にも属さない理想郷にしたい」と語る。

 清水建設の宮本洋一社長が強調するのは、「社会の閉塞(へいそく)感」の打破だ。今の日本の若者は「人生で一度も明日の方が今日より良くなることを経験したことがない」(鷲田清一・大阪大学長)とされる世代。あえて若手社員を集め、一から構想を練らせたそうだ。

 政府は、環境分野の技術革新を成長戦略の柱に据えるという。月を目指した米国の「アポロ計画」のように、立ち向かう具体的な目標を掲げてこそ、技術(者)は飛躍的に伸びるはず。「理系宰相」の菅直人首相は8日の就任会見で、同じように閉塞感を危惧(きぐ)した。指導力に注目したい。

毎日新聞 2010年6月11日 東京朝刊

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