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EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇6 L+ [/ `$ r3 U3 v

( C. `. A$ C# R- B5.39.217.76If you are not a Physics person, read on and learn a fact of physics.   公仔箱論壇! k( K! G& R0 p/ y- t9 ~  ^
AMAZING!

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; r+ w: o+ {( a7 K6 W2 S! ^tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
. g6 L# V+ @7 YTVBNOW 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。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$ j2 F+ r) C) _2 T/ A& S" D+ Y- U
It is located in the city of Magdeburg, near Berlin.
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% H  K* E: l" A/ _& E) Dtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.8 p  @9 l+ O. [$ R1 Q* S, f
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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3 U' ?4 W8 M3 F, X: K* f! ZQuestion:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% q; w  b" c7 ]; {+ {5 q4 T公仔箱論壇Or just 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。( y: ~! L. _$ K$ o" `. L

# P& K/ z; \7 S% {& B! \公仔箱論壇Answer:

5 G2 @3 K7 U1 L; G7 A% E+ J7 z; n; fTVBNOW 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。
, _* N- G2 z- j; n; V3 M, \5.39.217.76It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb7 b- P0 h2 G" H; _
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
7 |* k& @# n6 {0 b; x: bThe 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. 5.39.217.766 y- k1 }( v) H% X
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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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" ~) k) t0 R. b( a/ z3 G2 t! m公仔箱論壇tvb now,tvbnow,bttvb( |5 l  W1 n/ K3 ]

8 x8 Y7 x0 [' X4 ]5 qtvb now,tvbnow,bttvb公仔箱論壇  X/ H, v4 M0 Z1 |& ^

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5 D! e: V( @+ ^% u. Jtvb now,tvbnow,bttvb
0 L. s. f/ [  E4 J- q9 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。
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平壤核子能源研究所
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
4 X1 u3 D5 N  L/ V( s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$ b( I3 o9 N3 X% k+ I3 p0 \
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
# Y2 [" O5 }0 S! U$ y  q% D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5 r1 m+ P6 l, i# u% |0 L# y+ t$ U- I
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。$ I1 w9 [4 l2 `- b8 }- Y7 U
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 萬7 J; u* F/ G( `2 B( U( @
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。
! d5 g$ [3 C0 ?1 j1 E公仔箱論壇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
0 E9 q3 C/ T" `& a2 k* P. v' }5.39.217.76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。
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多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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