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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.   
  j/ f) R0 \' k5 A6 }tvb now,tvbnow,bttvbAMAZING!

' p, _7 |# _- M/ t3 STVBNOW 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。tvb now,tvbnow,bttvb/ v$ X. B) X/ F1 e' Z% y4 Y
Even after you see it, it is still hard to believe!
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[attach]1486499[/attach]公仔箱論壇9 B/ G8 G* ?) w: C
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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇. `7 G/ s5 d8 B) ^" C7 T# w* [! d
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
1 U" Z" N% P( i6 p/ {# ?* X/ tTVBNOW 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。It is located in the city of Magdeburg, near Berlin.

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, j* I2 g6 J1 x6 d- _# l. P5.39.217.77:8898The photo was taken on the day of inauguration.公仔箱論壇  J$ H$ R, k2 |2 S+ q5 v
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb+ ]% t( g* F/ u: |: C

6 B4 m2 ~; c% Q# E, `: F5 \8 E$ M公仔箱論壇Question:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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Answer:
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It only needs to be designed to withstand the weight of  the water!
$ o3 j) ?2 X# o% k) ~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。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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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb' h7 B6 i) s" s+ _+ n
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.5 y( {# s5 \& G7 Y
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. 公仔箱論壇) d% A$ U3 e4 Y# X7 A; m" g* r

3 Z8 a7 ^. ~0 `( S/ C5.39.217.77:8898Construction 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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" L1 W) t: f/ c# x9 T3 b0 O9 jTVBNOW 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]1486500[/attach]
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[attach]1486503[/attach]5.39.217.77:8898# J" M8 ~! z% K- d: s+ v, I8 K. g+ Q
[attach]1486504[/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
0 l' {4 H% z. U' t" C% A連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇3 W% c! o$ j  a
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。tvb now,tvbnow,bttvb6 |7 k0 S/ F! V8 b1 I$ E
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。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。+ h- E: I( [) S0 d+ x% A
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。! x9 b7 f" l8 d5 s' l8 S5 C. L2 ~! `
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
% ?$ b2 \1 A: k/ fTVBNOW 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。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。 tvb now,tvbnow,bttvb& L) v; Z/ l5 f( F
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和5.39.217.77:88982 ?. T4 \/ Z6 _) G5 r# b8 |
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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