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標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁]

作者: lilitan008    時間: 2011-10-2 10:09 PM     標題: EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.   5.39.217.77:8898( k/ }* J, d, H
AMAZING!
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% @8 Y' y0 t3 q& G- i- h5.39.217.77:8898Even after you see it, it is still hard to believe!
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[attach]1486499[/attach]
- @( M9 Q* U* w公仔箱論壇公仔箱論壇8 U( A# r1 c5 N
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! - `  Y6 E5 n# V. g( t
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb/ w- X% D/ L6 r. K
It is located in the city of Magdeburg, near Berlin.
TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。7 Y" p! L! P% o# e% g$ x( @

" b& B' ^# `7 s* W% |% N' m公仔箱論壇The photo was taken on the day of inauguration.
5 c1 I5 L( G7 d5 A. x( S5 B( X公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb3 v3 }9 a/ ~, `) E) J! a- Z
Or just the weight of the water?
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# [5 L$ f; T. Z" z; y4 H0 wAnswer:

& f( A( w( G8 R# `公仔箱論壇TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。7 s/ X: P) Z' P, Y) W8 V& |
It only needs to be designed to withstand the weight of  the water! TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。2 F0 L2 A+ W! F7 g
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded

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公仔箱論壇3 m6 D) }6 P" ^: A
The Incredible Magdeburg Water Bridge in GermanyTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。! _3 k- d% L+ B- Q4 g7 l$ ]9 a/ J
The Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal and allows ships to cross over the Elbe River. At 918 meters, it is the longest navigable aqueduct in the world.
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The Elbe-Havel and Mittelland canals had previously met near Magdeburg but on opposite sides of the Elbe Ships moving between the two had to make a 12-kilometer detour, descending from the Mittelland Canal through the Rothensee boat lift into the Elbe, then sailing downstream on the river, before entering the Elbe-Havel Canal through Niegripp lock. Low water levels in the Elbe often prevented fully laden canal barges from making this crossing, requiring time-consuming off-loading of cargo.
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' b1 a8 y* O5 R) E$ M- Btvb now,tvbnow,bttvbConstruction of the water link was started as early as in the 1930s but due to the World War 2 and subsequent division of Germany the work remained suspended till 1997. The aqueduct was finally completed and opened to the public in 2003.
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[attach]1486500[/attach]公仔箱論壇9 e! f2 X& C: v
[attach]1486501[/attach]
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9 f1 R* N4 d0 A% H, ATVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。[attach]1486503[/attach]
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作者: busyfun    時間: 2011-10-4 11:33 AM

這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出
1 S; J5 Y: ^# W7 f5 Y' K2 Wtvb now,tvbnow,bttvb連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇9 w5 ~, {# P6 Z. X0 p! t
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
/ z/ d2 k3 H% X/ E+ b; n隨後的冷戰時期,德國分裂,該專案被東德政府無限期地擱置下來。
# s( `$ J% B/ S! s! p' Z- X3 ]# XTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。德國重新統一後,隨著道路交通重大工程規劃的編制,水橋再次成為一個優先專案。
4 t8 j0 q+ L& u" U5 G公仔箱論壇於1997年開始建造,經過 6 年,耗資 5 億歐元,2.4 萬噸鋼材和 6.8 萬
% L/ O! K. H8 m' ]( h/ O立方公尺混凝土,完成了巨大的水橋,連接柏林的內陸港與萊茵河沿岸港口。
9 E+ G& h1 D5 h2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和6 @' S7 V; y* r2 J$ n2 q
易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。
作者: swyip21    時間: 2011-10-7 10:19 AM

多谢您的分享!
作者: Mimisan    時間: 2011-10-12 11:01 AM

first time heard & saw it, thanks for sharing, thanks tvboxnow!!
作者: pepperjellabies    時間: 2011-10-15 09:35 PM

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