Board logo

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 3 v( T4 J% ]' [  I3 x5 C: l

) s, ~3 ?2 ^9 E0 k1 x公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.   + _6 M; e; z2 ~7 {  u9 U: T8 C
AMAZING!

6 z) [3 }& h; x. q
$ Y' i1 m1 J( \2 s: D公仔箱論壇Even after you see it, it is still hard to believe!

7 c% Z' D5 h+ I) Y5.39.217.77:8898[attach]1486499[/attach]- Y- [; k, Y) 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。1 r& |2 H) g6 [7 k* j/ d
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇' E# p/ V6 ~/ j
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. / h; \+ j6 x2 l- z. u
It is located in the city of Magdeburg, near Berlin.
公仔箱論壇3 Z' X& Z' |# `

! @5 n  Z2 G8 [. N" ~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。The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb/ V  ~$ V0 d, |1 W3 b! t
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
  p0 M$ n  Q9 K5 }7 Gtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb; y- b# O% O4 V/ Y! q' M$ {
Question:

0 L) B8 g2 A2 s7 P8 ~; E- l3 ~( l
. F/ P9 U. A) b4 B* W7 Htvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:88984 b' D. T, D, }6 P3 h5 S
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。% z9 K1 B+ }/ b/ E# a& g4 ~; B
- {/ y1 ~8 l5 @* F& j
Answer:

& \9 M, y# f4 L( t0 e( S5.39.217.77:8898
; `) d1 c8 @2 p5 ?tvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of  the water! 公仔箱論壇7 e. [2 L' v1 D3 w
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
公仔箱論壇, Z* H2 H) N. `* ?, x

8 p; [1 d3 Y  X5 M$ p& t
5.39.217.77:88980 Y' E9 m8 t0 E4 e
The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。: r9 z! N' E/ n
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.5.39.217.77:8898" @7 X1 T* A" B$ o' Z* K# j
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. 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。* u' ?& J; o0 ?- `2 A' u

- S7 Y  D% K; h. {0 [6 M4 _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.

8 N' f! W0 e8 R7 r4 N
公仔箱論壇6 K$ N- t0 e6 q0 _
5.39.217.77:88983 Z8 X- c  ^- W) d
[attach]1486500[/attach]公仔箱論壇; M! E: ^4 f( I1 H2 H/ h$ H
[attach]1486501[/attach]
/ H5 U5 z; }8 ~) C+ _8 Y# y$ P[attach]1486502[/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。: }- c# K4 i6 G5 j7 A
[attach]1486503[/attach]
& X8 B7 X! {1 ~! H7 x$ b% f* w5.39.217.77:8898[attach]1486504[/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。: o8 ?' t6 }; W. c: x& t) j
[attach]1486505[/attach]
- \: T. k8 n# H6 ITVBNOW 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。tvb now,tvbnow,bttvb: J! |5 l1 v) e3 g  Z+ ]" h$ K$ H

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" P9 {2 N; t2 [6 R
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
4 \" h- x) ?& z( ~也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
5 e; ]6 ]& @5 k% M$ i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。2 o0 r6 K1 c6 E9 j: r
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。
; x1 G: S& r1 x/ V5.39.217.77:8898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
! y1 O. l* A6 r1 _1 C. j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。
; \8 |! t& H7 M" I. n* N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9 ?: ?. y$ G" T, R; T* h
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

提示: 作者被禁止或刪除 內容自動屏蔽




歡迎光臨 公仔箱論壇 (http://5.39.217.77:8898/) Powered by Discuz! 7.0.0