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- F" V/ ~7 G. t' V1 s
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If you are not a Physics person, read on and learn a fact of physics. 3 p2 v C9 z$ V; I; ~. l& A
AMAZING! 8 o3 |4 L/ w& I; S, B' p1 ~! W8 }1 D
Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb9 W, ?1 f' m2 p$ T [attach]1486499[/attach] & f$ t: {$ {0 j& d: B0 a# a% |! c1 M) y! T0 Y
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 1 A# i4 z' O h5 y; {, [& |" d
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ' o$ U5 j8 Q% N2 a
It is located in the city of Magdeburg, near Berlin.) c! e& I& N) Y; ]: x2 B
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The photo was taken on the day of inauguration.5.39.217.77:8898' R! H; {+ @ X
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. , `, ]) ?) `5 q8 D' Q% `& `" q4 ~! H. A6 pTVBNOW 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。6 L& m6 F5 s2 N0 V& Y; d) E+ g- u/ h
Question: ) M0 T! B1 U0 c ?1 A : {( {, b! b0 ? ~2 Y7 nDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, * s& j) \; m( w8 K2 N' _" A公仔箱論壇Or just the weight of the water? 5 a0 @3 X: B! s$ E# Z+ ? S公仔箱論壇tvb now,tvbnow,bttvb+ l6 N' I* V n* h
Answer:tvb now,tvbnow,bttvb( L M6 Y% P6 ?' z! i! O
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It only needs to be designed to withstand the weight of the water! 公仔箱論壇4 l0 _. b! M; R1 C6 Y" F( S
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded6 Z% r% H8 L: }' F tvb now,tvbnow,bttvb9 |8 I7 v7 x( \# u. {4 c
) W T; {$ G: p6 ltvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb: a2 ]7 }! Z3 j( C! K
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. * j" @$ P8 U0 G/ {; iThe 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. 公仔箱論壇. `# n+ B( t4 J5 s0 [ X
* H" d* d. ~3 L- 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。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. ! z" Z$ K. t9 p$ d8 J6 f+ `, j4 m: L, f3 ]* @6 s V
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。! T/ V! E2 o3 O# j% m% ? [attach]1486500[/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。8 e3 j3 N8 |% x/ j) O* j [attach]1486501[/attach] & }7 f3 o* P! }4 ^公仔箱論壇[attach]1486502[/attach] `% w+ o4 g% \: _[attach]1486503[/attach] ; P7 ~. V5 {% g' [tvb now,tvbnow,bttvb[attach]1486504[/attach] 2 {' H4 y- B+ O/ f' u4 Rtvb now,tvbnow,bttvb[attach]1486505[/attach]$ p; k7 B4 @6 j
公仔箱論壇; s: M. d$ R# Q 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公仔箱論壇' L' k! \8 y" Q
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇! @2 w9 _3 l. Z' ^- N! h
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。 6 U, y: R, Q' p( t6 G, i7 g- W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。5.39.217.77:8898/ t' k* O8 X% |! B' c ~6 [1 R& O
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。% Y( u# F) z7 M: o
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 萬5.39.217.77:8898& A# r+ P/ B, A' L( L4 X8 ~$ y4 y; V F
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。 4 b( L3 x7 E# X# R+ Ntvb now,tvbnow,bttvb2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和 . m0 b- F8 _+ A* ~, c. L5.39.217.77:8898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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