高度666米 中國將建世界第2高樓

又起高樓, 次次起好/就來起好都會有泡沫爆破

2010-10-29 18:00:20

可容納7萬至11萬人在其中居住、工作、就學、娛樂、購物、遊覽，一幢“混合社區”式建築有望明年在國內建成，而其採用的正是上海世博會遠大館所展示的 “一天建成”的“可持續建築”的技術體系。

　　據遠大集團董事長張躍透露，這個建築將全部在工廠生產，工廠週期約4個月，現場安裝週期約2個月，安裝現場不使用混凝土、不切割、不焊接、無揚塵，它將是全球第二高樓，設計高度666米。

　　本屆世博會上，遠大的“可持續建築”可謂大出風頭，一天建成的展館，可抗9級地震強度，6倍節材、5倍節能、1%的建築垃圾、20倍潔淨空氣、全年20℃～27℃的恆溫，這一系列的數字都讓遊客稱奇不已。但這種建築究竟能否在現實生活中大力推廣卻讓很多人心存疑問。在世博會即將結束的時候，遠大終於讓人們看到這種高科技的建築將真正從博覽會走向人們的真實生活。
　
　　據介紹，該建築功能佈局為1至125層附樓為住宅，設有52—225平方米住宅4120套，平均每戶淨面積125平方米，容納1.8萬至 2.5萬人居住。0—40層主樓為“立體街區”，設有商店、農貿市場、餐廳、遊樂園、影劇院、培訓學校、中小學、幼兒園、診所、銀行、派出所等公共服務功能，建築面積約15萬平方米，可容納3萬至5萬名顧客、學生和遊人。41至125層主樓為寫字樓、約28萬平方米，可容納2萬至3萬人辦公。126至 164層為五星級酒店，有2128個套間和酒店式公寓。165至190層為七星級酒店，有145個套間。192至200層為餐廳，可容納800人用餐。 126層為五星級酒店大堂，165及166層為七星酒店大堂，191層為餐廳廚房。

　　所有的功能均可根據市場需求而不斷變更，因隔牆、門窗、管線拆裝較為容易，這就是“可持續建築”獨有特點。據張躍透露，“住宅房的造價是 7000－8000元／平方米，因此售價不超過1萬元／平方米。”但最為關鍵的一點，這個神秘的社區將落戶在哪個城市，張躍表示尚不便透露。（來源：人民網－人民日報海外版）

Canada could be key supplier of rare metals

Sat Oct 23, 6:00 AM

By Luann Lasalle, The Canadian Press

MONTREAL - Flatscreen TVs, laptops and Apple's iPhones all use rare earth metals, critical to tech devices but largely controlled and produced by China.

It's a market that a number of Canadian companies are trying to enter with their own mining properties in order to compete with and potentially take away market dominance from China.

"The market is only now catching up to the understanding of the sheer importance of these metals," said Peter Cashin, president and CEO of Quest Rare Minerals Ltd. (TSXV:QRM).

Besides TVs, computers and mobile phones, rare earth metals are also used in wind turbines, in iPod earbuds for sound quality, in hybrid electric cars' motors and batteries, and in smart bombs and other defence applications.

China controls about 97 per cent of the production of rare earth metals and has cut back on exports to meet domestic demand and help cut pollution. Japan has been already squeezed in its supply of these metals due to a dispute with China and said Friday it plans to mine for them in Vietnam in a bid to reduce its dependence on the economic powerhouse.

Cashin said he expects to have Quest's Strange Lake property in northeastern Quebec, near the Labrador boundary, in production by 2014 or 2015. He's also interested in finding a partner to refine the metals.

He said there's enough rare earth metals, both light and heavy, at the Quebec property for an estimated 65 to 100 years of production.

"That speaks very well to the security of the supply that's got the United States and other western governments concerned about their ability to obtain those important rare earths," he said.

Though they're called rare earth metals and may have been considered so when they were discovered at the end of the 18th century, they're not actually rare or in short supply.

They're a group of 17 similar metallic elements whose names aren't exactly common to everyday vocabularies, such as cerium, terbium, dysprosium and neodymium.

So-called "heavy" rare earth metals are particularly sought after because they're critical to the production of magnets found in wind turbines, computer hard drives and electric motors, and can tolerate very high temperatures.

Analyst Jack Lifton said the Chinese have cut back on production because they have to meet their own domestic demand and they're worried they're going to run out of the metals.

Lifton said Canadian companies could be the closest to producing an alternate supply of "heavy" rare earth metals, citing Saskatchewan-based Great Western Minerals Group Ltd. (TSXV:GWG) as an example.

"The world is waiting for a Canadian company to start producing heavy rare earths," said Lifton, founding principal of Technology Metals Research in Detroit.

"The heavy rare earths are critical to the production of modern magnets that can operate at high temperatures."

Great Western has a mine in South Africa that's expected to be up and running in 2013, said James Engdahl, president and CEO. A separation facility for the metals is also planned, he added.

"By 2013 when we're in production, we see ourselves growing substantially," Engdahl said, adding that the company may make an acquisition or two.

"We believe the potential in South Africa to produce maybe as much as 10,000 tonnes a year is very realistic," he said from Saskatoon.

Engdahl said the mine will be able to produce the in-demand "heavy" rare earth metals.

Great Western, which also processes the metals, has been buying them from China for 18 years. But Engdahl said the company also processes rare earth metals in England and Michigan.

"We are the only ones that make alloys basically outside Asia," he said.

Lifton said he also likes Avalon Rare Metals (TSX:AVL), but he said it will be financially challenging for the Toronto-headquartered company to get the heavy earth metals out of the ground due to infrastructure costs at its property in the Northwest Territories.

"If they can do that, Avalon will become the world's premier supplier of the world's heavy rare earths and the Chinese will buy from them and everybody will be happy."

Engdahl said rare earth metals have changed everyday life and "miniaturized" devices.

"If you went back to the '60s and you had a big black-and-white TV, that's what the world would be like without rare earth magnets in them."