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 公仔箱論壇9 J0 `+ P/ [4 m" O$ R, o5 V5 k
tvb now,tvbnow,bttvb$ z1 n, R0 R1 F
If you are not a Physics person, read on and learn a fact of physics. 4 L7 m8 y( s* m M' K
AMAZING! 5 W6 m. l# |8 N5 k tvb now,tvbnow,bttvb3 I/ e; U, S& a& ]
Even after you see it, it is still hard to believe!5 w0 S% V" m/ g( D: A u [attach]1486499[/attach]: K' o0 v/ y1 O' w. w$ }* A
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 m* |5 l1 N' C) C0 m& s$ ?" E/ `; S: l
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:88988 x7 |& U2 c+ l/ \
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 1 Q: e1 o9 }) }. r
It is located in the city of Magdeburg, near Berlin.3 Y+ R, [% u! m6 r4 x1 z; K7 U% g
6 C: C0 ?! C9 ` q: H
The photo was taken on the day of inauguration.5.39.217.77:8898( `. i# r. I6 p9 G. M! p5 W
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 1 f5 ?6 _" B+ V6 u) W( [ {+ ]) |' q( F$ u$ w" n; C h; r7 C5.39.217.77:8898Question: : M4 q8 c' D( N H6 Z) R9 Vtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb3 q( n) A+ z7 V9 d0 `, k6 M
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,# c( j0 y6 ^ p% i1 L4 y! |
Or just the weight of the water? + m. @/ O- }2 D% R& {7 g' q
- w+ e# w2 {7 v8 ~- K# f5.39.217.77:8898Answer: . T2 I" [# R( T( i+ E7 J I5.39.217.77:8898& J7 W' I. \% K1 ?
It only needs to be designed to withstand the weight of the water! , E% ^. j$ n7 y" x. X' P# u' e
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( X! o% p4 J) R + r! p& {8 `9 } q: y! jtvb now,tvbnow,bttvb8 ?, j* K C3 v( r7 U7 M The Incredible Magdeburg Water Bridge in Germany d$ f% R; e. ^" F公仔箱論壇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. Y2 G, s1 S6 j5 S: JThe 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. 4 v7 p5 r7 m5 n1 h& Htvb now,tvbnow,bttvb! s; z: ]* O/ F" X' a/ P& T
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. tvb now,tvbnow,bttvb2 d' w% |/ } M C$ d7 @
5.39.217.77:8898/ y) D$ M. D& X- f2 Q6 O; s5 J
5.39.217.77:8898 v% q- \+ {) V: ~" E! R' Q0 u& P [attach]1486500[/attach]2 E, r% F6 U8 [3 ^, j [attach]1486501[/attach]公仔箱論壇7 Q6 S1 ^ i* Y5 o3 g [attach]1486502[/attach]公仔箱論壇! }# L$ a h8 B& q9 V [attach]1486503[/attach] . ~1 Z" B$ g( O; [/ z8 B* y[attach]1486504[/attach]tvb now,tvbnow,bttvb; P4 P6 l3 w. I1 D5 W [attach]1486505[/attach] ; h" B+ I' m5 {" L- L公仔箱論壇5.39.217.77:8898) X, Q& j# h3 T% g 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 9 [6 N" U9 k' h; ]. i& F) ?5.39.217.77:8898連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇 6 D J6 D! D) @: n6 W7 ttvb now,tvbnow,bttvb也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。 ( y9 L. y( t4 Z! w5.39.217.77:8898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。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. O5 l$ d+ I, R8 z7 K6 ]
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。 6 m/ r+ d' W6 w# X* e0 M公仔箱論壇於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 - A" T: k; z8 R3 u w) E3 ~. Q2 W公仔箱論壇立方公尺混凝土，完成了巨大的水橋，連接柏林的內陸港與萊茵河沿岸港口。 ( E4 H) |/ W! j. e 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5.39.217.77:8898) ]$ L# D- \& R8 S& U$ 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
