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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 % j  B, q+ I9 Q( }6 z, I! X

6 a; \2 Q9 F$ I4 S+ \7 lIf you are not a Physics person, read on and learn a fact of physics.   
. ?8 r5 |7 q- T4 P# KAMAZING!
公仔箱論壇/ H% D/ W- J9 t; m

- |7 f/ w. ]+ Z+ e! ]Even after you see it, it is still hard to believe!
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。' f  n7 f% H2 i2 n- T5 X, H
[attach]1486499[/attach]
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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb$ @. `7 ^" z& \! s/ y' @% b# B
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇! x1 g4 D8 A$ E/ l: `2 I
It is located in the city of Magdeburg, near Berlin.

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: k+ o0 ~. p* EThe photo was taken on the day of inauguration.0 S: p6 X  ]  v& ]0 U$ ?  [) H
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:

5 b# c5 X+ h* q" A$ Ztvb now,tvbnow,bttvb5.39.217.77:88983 C! j  t( r0 Q* ]# V. |. E0 k: @
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:88989 e8 |5 r. `, I8 B* v6 j% o
Or just the weight of the water?
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( v% d/ E8 J% |" ~4 E( \& l. M$ H) 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。Answer:

5 ^% {% v+ F' z3 u- \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( o& K* v" ?1 s7 k( z. b/ ^. Qtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of  the water!
- M1 `. d1 |: T) q( }0 G. ftvb now,tvbnow,bttvbWhy? 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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) H; ~. d8 Q& U4 h  Z" K) h公仔箱論壇
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The Incredible Magdeburg Water Bridge in Germany2 D% ~7 X5 `- U' l
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.$ ~& T! B' S/ x2 W" E6 ^7 R
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. 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。" Z7 @# B5 U. A; |* G/ Y

( c* `' X+ ~3 T2 r# Z# }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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! F/ `4 P0 ?4 m- ]/ \公仔箱論壇[attach]1486500[/attach]
% z) P, r# W7 t9 g[attach]1486501[/attach]
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[attach]1486503[/attach]
. w5 r7 c/ W( D2 btvb now,tvbnow,bttvb[attach]1486504[/attach]* T3 {0 F8 T: \1 e8 ]2 ?
[attach]1486505[/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
; g5 y+ T8 Z* c' y1 [/ U& P: iTVBNOW 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。連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
: z; |% F! w' ^( C+ K) R5.39.217.77:8898也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。- Q  s8 U. ?/ y2 `9 _/ ]) _4 a
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。tvb now,tvbnow,bttvb; `& c* C0 L, v3 I. E; D2 |
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。
) n  m& I3 r) c; Z. Rtvb now,tvbnow,bttvb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 萬3 N% u8 m! M5 U& M# i: Z- N
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。 1 Z# g, `5 ^. `5 Q  Z( ?. L/ k
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1 A9 j' _( G2 d+ `( F, B
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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