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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 tvb now,tvbnow,bttvb5 z/ \: {. N  p. ?* r; L5 q) b% ^
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 ~8 z: p9 @* _2 ?
If you are not a Physics person, read on and learn a fact of physics.   
8 b6 o! S& n" e# F( ^tvb now,tvbnow,bttvbAMAZING!

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Even after you see it, it is still hard to believe!

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- g( e: S. @$ i5.39.217.77:8898Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇, ~# t* t/ x" u
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
" ]2 M# x7 N% X& @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。It is located in the city of Magdeburg, near Berlin.
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- _* [9 F- ?% N3 g$ y& I1 b/ WThe photo was taken on the day of inauguration.5.39.217.77:88984 c' D4 G3 ^% I$ g2 c4 e
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,
9 ?$ T, Z3 F: p1 r7 Q5.39.217.77:8898Or just the weight of the water? 公仔箱論壇' s- S! F4 s+ |9 M4 ^
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。+ Z' A9 _0 d# L5 Q* a" P+ ^1 d
Answer:
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tvb now,tvbnow,bttvb) F/ H9 E% I; \1 `1 z( c% _2 g
It only needs to be designed to withstand the weight of  the water!
, G( w' f0 ?. R9 }( M5 Z5.39.217.77:8898Why? 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" ^$ i0 E6 u1 }0 [+ ^
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. 公仔箱論壇" N* D3 @$ h/ r) E- f7 B( @) @
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Construction 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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1 ?3 r- ]) d* ^4 e$ z5 z3 s[attach]1486500[/attach]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。8 F  |' U1 ?' x: ^0 c
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[attach]1486503[/attach]5.39.217.77:8898* w% ^/ m" A( P7 W5 }: Q
[attach]1486504[/attach]
. q' v& F7 |6 E+ L9 ^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。[attach]1486505[/attach]; R+ K3 U$ d! G! [( T; ]3 S# e5 _
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。6 ~+ g7 o& Z9 _  i  _& h; x

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tvb now,tvbnow,bttvb/ L9 `9 Z, C( i" }& I5 x+ Q
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇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。/ s6 l6 z& F' O! M8 R% L5 p
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
: p$ z& {  i" c' C5 t% s0 w5 l公仔箱論壇隨後的冷戰時期,德國分裂,該專案被東德政府無限期地擱置下來。2 j7 e; E/ u( S4 ~- ], a# }; t
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。公仔箱論壇, Y% E/ P- U- X1 h0 k
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 萬公仔箱論壇4 |. [; [8 l+ v2 Q' Q
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。
- b9 x$ D9 |: B' x5 B2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
, E& Z! e1 m! w" ~: |: z- Stvb now,tvbnow,bttvb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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