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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 5.39.217.77:8898. [: J  O: {) F* |6 g

+ ]# d$ y; D# P* Z公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.   
1 d( ~. G& f$ I0 pAMAZING!

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Even after you see it, it is still hard to believe!

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- Z2 ]  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。9 C# f+ L6 y+ N: Y0 W7 D5 P
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
. W+ t7 |& w7 S1 k5 Y/ Atvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
! d. }7 n5 b+ m; O# T5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb, ?7 p6 _: M  w6 y9 ?

' y. N* K) i0 `! W; z$ 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。Question:

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/ ?/ R, M5 J$ v% h" a% {公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# S$ P  H7 v& X* ztvb now,tvbnow,bttvbOr just the weight of the water?
* y, K# y5 @$ `' v3 x( f* 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。
( m: K. X5 `, Q) A" ?' l% Z' s0 T6 D) }6 ?Answer:
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5 G$ D3 @8 s% q4 @9 S  ^3 X5.39.217.77:8898It only needs to be designed to withstand the weight of  the water! : t" j1 a' B5 D  a: x- W; 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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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, i& E( S5 K+ Z4 v' ^5 O1 Q
The Incredible Magdeburg Water Bridge in Germany
% w7 \/ |9 t5 u* dThe 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.5.39.217.77:88986 }$ Z3 B/ C# M$ O2 Q
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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* `& k) F, B9 k' [& yConstruction 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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/ N5 k- T, o& C  J4 C* m[attach]1486500[/attach]
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[attach]1486502[/attach]
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[attach]1486504[/attach]
6 s' q- {" _* G; f3 x# a& `% w5 TTVBNOW 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。" J; i+ W6 I1 R8 ^

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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
4 r) J3 J( r. X5.39.217.77:8898連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇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。4 |) k0 A5 j1 R( u/ g& g
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。: u- b! o$ n* O/ t" f
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 R# ~, z$ ?/ N+ [  a; I, x2 x" z) Ctvb now,tvbnow,bttvb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。7 A! G2 E. _/ g, Y) r% R- _% i
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 萬公仔箱論壇% N5 \8 b  L; U; R3 {5 J! Q3 Q2 h
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。
# {2 A2 z5 |8 ^4 s+ X' p5.39.217.77:88982003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和4 b. o3 Z8 V( v5 ^  ^2 J
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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