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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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( m* Z. _2 B' ^5 tIf you are not a Physics person, read on and learn a fact of physics.   5.39.217.77:88988 m" U0 U, P9 O, {. n, x* z
AMAZING!
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Even after you see it, it is still hard to believe!
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[attach]1486499[/attach]
$ x$ ^2 X( i3 L+ CTVBNOW 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。
1 \: G- U6 {* L; L% WTVBNOW 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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
% l& H! _4 h3 e4 j6 yThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 8 Q1 U# `2 k4 ?  O
It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.% N8 ^! I2 i! K1 ^9 D0 S# b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:8898% M, i% u# \% K( i7 o2 K" N- ]

1 J6 j7 \  ^# Ptvb now,tvbnow,bttvbQuestion:
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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。# m2 C6 `1 v8 h- F% i+ m8 ^! ]& o
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
1 T0 J1 I8 u7 ?Or just the weight of the water? + ?* x. X7 F. ?: n0 K  M

; `4 b% A/ m: n4 OAnswer:
公仔箱論壇  S; \3 b8 Z% x. W- [/ @) F
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。  K4 B8 M* z4 z3 s2 B
It only needs to be designed to withstand the weight of  the water! 5.39.217.77:8898( x& ^0 l7 `8 l6 E
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 Germany
( p9 W7 Z+ ]3 v- Q4 F* `公仔箱論壇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. 3 P  C4 o: Z: j( \1 T8 f
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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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[attach]1486500[/attach]
! g) U& o: [; Wtvb now,tvbnow,bttvb[attach]1486501[/attach]
! a; k: k5 H% g. F8 l8 w公仔箱論壇[attach]1486502[/attach]公仔箱論壇" [7 i/ _" C1 L; m; v! m5 c
[attach]1486503[/attach]tvb now,tvbnow,bttvb9 f! \0 l0 I% d$ X& s
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% c) H5 a9 y% kTVBNOW 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]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。; c% C. _7 @* }5 p

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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  u! T/ v" @4 [$ T( w, w4 u
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
6 S1 k& @3 z) h1 T( z也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
7 S" E" N2 i4 j" W7 k: w" K4 }. P5.39.217.77:8898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。
. ]9 q: U& J; E9 @% t6 b5.39.217.77:8898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。
( C+ _2 U5 T1 [8 }; }6 [5 V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 萬5.39.217.77:8898$ h$ F) t) G* O- m9 M0 z* T1 \
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。   _0 S- |) [# _0 E: i$ U- a
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和公仔箱論壇+ w. l9 ^& Q# C) d6 I
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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