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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 7 O, r* b* L3 L) }, B$ n
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If you are not a Physics person, read on and learn a fact of physics.   
8 U6 m$ d" h8 x  LAMAZING!

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  Y4 c) A  v4 ~& B3 D% L9 {8 o公仔箱論壇Even after you see it, it is still hard to believe!

7 z: }3 Z* q+ z1 z5.39.217.77:8898[attach]1486499[/attach]
; Z. `2 ]. d; |5 v: zTVBNOW 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。公仔箱論壇7 X7 z2 |2 U; }# o
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。/ W. c' |4 ]* s! C, @
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. - u) B* W; W* x4 G- ~/ |/ B
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
9 D! `- o: C, R, g6 wTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:88982 s* @- i! |0 p/ D: a, z! d
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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,
' {* X1 k* M2 J$ bOr just the weight of the water? * Y% ?0 i7 m" W. A( e
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。. n1 c# V) a5 O! `& c6 U) k% t$ U
Answer:
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It only needs to be designed to withstand the weight of  the water! 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。0 i9 g8 K3 u  M
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公仔箱論壇* g- U# n* g; C6 W$ u
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.tvb now,tvbnow,bttvb/ {% x/ L' {$ f2 J8 J# t3 f% M
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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3 P) T  _) q; [, NTVBNOW 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。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]
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5 d0 u# W' x' M! p3 D5 [+ 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。[attach]1486505[/attach]9 T9 n8 j+ k' M& g2 L
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 K2 O0 \% f$ Q6 N+ F. m& a+ K- i! P

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
" ]' J% m) @+ j3 g2 c, i公仔箱論壇連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
5 X( l% H  A& 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。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
( `: i2 v2 l' E+ d* A7 Q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。1 G. Q6 {7 P: L4 ?& P$ O; ^! L+ \0 N! C7 |
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。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。. B$ t! U4 g1 g1 L% _2 K3 S) j' X
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
+ ]8 [: ?2 i9 \' P; M/ Y% c8 ?% l" Qtvb now,tvbnow,bttvb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。 5.39.217.77:8898) i$ B1 ~. L: E" v# D# w
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tvb now,tvbnow,bttvb; @: U7 h3 j" [) H; i4 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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