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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
" e+ B+ p7 x. T8 O公仔箱論壇公仔箱論壇  m% e. l9 C" z5 Q' L+ f8 d
If you are not a Physics person, read on and learn a fact of physics.   7 H" a2 f5 @3 |4 l: h
AMAZING!
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。, U% f, m+ A9 t8 Q; D5 K

* s% ^3 C6 H5 `1 K公仔箱論壇Even after you see it, it is still hard to believe!

4 c2 L0 M/ J+ E/ q5 s  {[attach]1486499[/attach]tvb now,tvbnow,bttvb- W" I  A7 ~$ w

9 m0 M+ |- I$ s/ b8 T/ y8 i公仔箱論壇Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.762 a0 e, `; P+ I5 L3 s; f
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ( b. c$ a7 @$ @8 k! D- X* }, ?
It is located in the city of Magdeburg, near Berlin.

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0 b* Z4 V$ Y7 t% W- |7 ~1 d* L% v" z公仔箱論壇The photo was taken on the day of inauguration.
4 v: B" ^5 `( f6 Z* Z# r3 |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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
3 \# ^5 V" i  P0 p& V* o- [2 p. `公仔箱論壇
) v* m: C' s% J7 W$ w4 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。Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
2 @: c( `1 v6 ^9 d1 V, H& h4 C公仔箱論壇Or just the weight of the water? 8 h: E. a& n# V0 h8 }0 i- C! B0 H

, Q/ z& q: x% e3 P5 U; E7 btvb now,tvbnow,bttvbAnswer:
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2 m6 ^2 r, H. s0 B: l公仔箱論壇It only needs to be designed to withstand the weight of  the water!
! n  o* q# h% N2 h5 U5.39.217.76Why? 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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5.39.217.76* |. Z9 M. i6 ]: P+ H
The Incredible Magdeburg Water Bridge in Germany
) \3 g3 @/ n4 M# C4 i$ sThe 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.公仔箱論壇+ O/ w& `- G! C8 A
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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1 ^2 [0 Q. U4 N) p$ h/ e8 cConstruction 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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2 q7 c3 C1 J7 }3 D1 L[attach]1486500[/attach]& Z; P" J; |$ ?
[attach]1486501[/attach]
/ F1 }$ `1 n7 [3 K" 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。[attach]1486502[/attach]公仔箱論壇9 K! |7 y# ~9 H2 g/ J
[attach]1486503[/attach]
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[attach]1486505[/attach]  f% Z+ t" w9 I5 \

/ K/ c2 U6 H4 Z9 ~& L6 Q  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。

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: d4 y3 w# q8 F" {; K0 i
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇tvb now,tvbnow,bttvb# I# A2 O2 Q, {( D
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
, J$ j0 L* Q$ e+ c5.39.217.76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。5.39.217.76" }" Y3 z+ ?  S7 Y  h& j
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。
3 V( Y, I4 O+ u1 ^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。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。, i! F% b3 [& e
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。 公仔箱論壇$ Z7 n1 v' j7 x( X* N
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9 O. M8 h9 j/ l! J% v
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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