返回列表 回復 發帖

EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。- z3 I' D% ]* |2 A$ `
5.39.217.76$ X5 l  r: b9 C# f: a
If you are not a Physics person, read on and learn a fact of physics.   公仔箱論壇  L( v* L4 O, j6 S- ]
AMAZING!
tvb now,tvbnow,bttvb& K; C% R3 q+ P5 v, w  A4 V5 ^

8 n5 {. x+ `/ P) K0 ^; s5.39.217.76Even after you see it, it is still hard to believe!

! g6 E% q# _2 G! Z( W. L& J6 K- K) F/ ^" h/ E, e1 U
5.39.217.76! i5 F" `4 v4 d
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
7 I$ c  P1 p7 Z0 C5 mThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. , ?7 K' k( ?4 ~4 H6 h; ~  ]) P
It is located in the city of Magdeburg, near Berlin.

  z5 E! e9 A  Z0 g4 H5.39.217.76公仔箱論壇& ]+ R- n' @( q. n  |
The photo was taken on the day of inauguration.5.39.217.76. U) s& m1 A2 n/ i
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
8 K; X, C& W' V7 s6 w/ a, a5.39.217.76公仔箱論壇8 H; q1 P" T/ I
Question:
5.39.217.764 S" z  N% {9 q6 c
5.39.217.763 T6 U' }7 X- ~, j/ v
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,' M( H4 S( q! R" h3 w! O" j) I
Or just the weight of the water? tvb now,tvbnow,bttvb0 i5 C( B1 c7 B# C' M5 d7 R+ Y

3 \% R; }' }/ `' \- atvb now,tvbnow,bttvbAnswer:

  P, v8 N6 n2 z' l$ k+ ^9 }, b  j) @# v$ y9 u  ]
It only needs to be designed to withstand the weight of  the water! 9 b- i8 G/ K6 C+ l1 d$ H9 O. i! V0 k
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

  c4 l9 F  m# e& h9 o5 MTVBNOW 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- n$ n0 t7 a4 b3 `/ b

5 f. v2 t( X# I" P5.39.217.76
The Incredible Magdeburg Water Bridge in Germany
" [# G/ [1 E4 j6 @1 C- [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.
1 A+ ?0 L2 a+ h# Q0 S1 p- c5.39.217.76
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. 4 I1 N/ b! G; y" H
. Y6 u* P( K& t! a5 F- W* n2 a
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.

, m  q/ U; L2 T. Q" U2 w8 K6 uTVBNOW 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。

' B4 ^9 S. `( W9 b2 D2 `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。
& f& p+ f4 b6 y& t公仔箱論壇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。7 c: ]: N% f- G/ x! B' N, C
5.39.217.76/ w5 P( P( w  D! x9 m0 r# J( J# Q
5.39.217.76, d4 p9 r2 T/ Y1 P# F3 j

- c, R* x# Q2 F3 o+ c# c% a
4 |8 ^9 h/ S- D; w3 q  ^# `2 x
: u" V" T; A. Y7 r5 b. ]2 I' S5.39.217.76公仔箱論壇2 {+ c7 S. I8 c/ p
附件: 您所在的用戶組無法下載或查看附件

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
& ^: O: P, c: m1 r3 `連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
! I. b( `* y1 h5.39.217.76也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
  f6 p1 Y, w. z5 c8 T! J: p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。
0 b4 D' X4 q% B! G& A: q/ Ttvb 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。5.39.217.76& f8 L  i% ?& l$ c9 s. [0 L' k
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tvb now,tvbnow,bttvb2 g" B/ w; m& _  v0 n/ N9 |5 k
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。 5.39.217.76  {4 B" D+ h  \: |, Y7 z) T
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和公仔箱論壇, z# |* J; B2 M
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。
1

評分次數

  • k23bb

多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
提示: 作者被禁止或刪除 內容自動屏蔽
返回列表