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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
$ k. K" X1 y6 m$ @, ^- l& ]4 c; rTVBNOW 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。
  P6 ~. m- i/ y& Q  @! M: ]5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics.   tvb now,tvbnow,bttvb" F: P/ {3 ?' m9 D
AMAZING!

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Even after you see it, it is still hard to believe!
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[attach]1486499[/attach]tvb now,tvbnow,bttvb% B6 M0 H; J- O
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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
# j- M" J& W" W5 U& `. otvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
6 N' Z9 |" o$ u# }- wIt is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.
* M6 w0 j$ g' ^) V6 [" n9 _+ FTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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# V/ r5 o7 G/ K' ]; Rtvb now,tvbnow,bttvbQuestion:

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, E, W: T1 i8 l% v' U& c' oDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
: b' g/ f8 O% hOr just the weight of the water?
7 P  F5 Y( V; ?! pTVBNOW 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 }3 q$ b; q$ q0 VTVBNOW 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。Answer:
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tvb now,tvbnow,bttvb& U& [' i% X  ~) I/ u
It only needs to be designed to withstand the weight of  the water!
, _& O( N2 ]/ T5.39.217.77:8898Why? 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 Germany
* d5 p: d- r1 n6 nThe 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.
6 L' P5 l- B4 U5.39.217.77:8898TVBNOW 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 K8 t  z- g* n+ h# [: {  ~
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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[attach]1486501[/attach]
/ R, x/ I' t% R5 p[attach]1486502[/attach]
& s/ n. v6 H% ^" O[attach]1486503[/attach]
, ~6 {4 W0 G5 I" T* x5.39.217.77:8898[attach]1486504[/attach]5 K3 R: J, ?  ?6 C" J; n$ K
[attach]1486505[/attach]: l9 I) O0 m5 I

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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。* J# a% Z* s2 G$ i, m0 ]
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
: a! ^8 m/ g- H, i5.39.217.77:8898也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
' a6 `2 z$ O/ T! F9 s% F/ q8 _8 {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。公仔箱論壇7 T$ O( l% I, F/ 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。
& A: l+ a: f' f1 x2 Y5 i6 |( s4 I& vTVBNOW 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。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
: z5 o& I# W9 K/ ]2 D' z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。 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。) K! {5 L- [% a/ B/ c
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
7 p$ Q7 s& S: y/ h- R5 k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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