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 公仔箱論壇! I3 e! v, T% Z. Q( ]' C

4 p1 R' l0 ~4 X+ }) {& F: m1 {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。If you are not a Physics person, read on and learn a fact of physics.   " v6 g$ M; u& }* E6 @8 o$ ^
AMAZING!

1 p$ b. x5 A& u/ @7 u1 D3 A6 d6 \5.39.217.77:8898
* ?' Q, P5 H7 U0 ^7 Q5.39.217.77:8898Even after you see it, it is still hard to believe!
5.39.217.77:8898& _; W, u7 l' F
[attach]1486499[/attach]9 I3 c$ u: ?" B' G6 O7 D4 z! H  l
9 V! D, f& `7 x. E& f
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
5 Z  w4 x  c9 R9 Z/ ^- x8 T/ hTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
- [3 j# @# X5 ]$ VIt is located in the city of Magdeburg, near Berlin.

; |8 j. W9 ^" J; n$ a9 ]- q5.39.217.77:8898- J4 I0 V  o- z- S$ d
The photo was taken on the day of inauguration.公仔箱論壇1 k- S3 a- u9 e7 W
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.4 i( }4 l' U! u3 ?0 r6 k' {
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。+ Z) v: T3 @  Y7 a2 y) N0 L
Question:

+ S! F. s# l& ?& a6 E8 j公仔箱論壇
$ h+ {$ ~& k, K4 e$ `7 r公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,, I; O; h# _) t- z" L4 Q* @
Or just the weight of the water?
7 m0 U9 W6 x# f& d' JTVBNOW 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。
- N6 n5 y5 ~' L, ]: DAnswer:
0 F) Y' A5 v' S5 S; l2 L2 e1 T9 G3 ?

0 W# }% a" x1 bIt only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb2 L9 d: m7 a3 l+ E: M% P
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
% k6 m5 i* N* k1 O$ c

7 q7 J7 v7 J% e: d  ?& s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。0 S" e8 ]% h9 M1 t+ v* n
The Incredible Magdeburg Water Bridge in Germany5.39.217.77:88987 w* g5 Z. |3 [6 Y2 `4 g
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.公仔箱論壇5 q) }, r& k8 R! [) @$ d
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.
1 c7 i6 u0 q# C$ _9 B
# N/ ~3 e% _" w/ V3 X+ mConstruction 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.
. p7 Y* |7 f7 _5 J" R4 K
% e% ^. h0 r6 ~$ |# r/ a% V

2 ]% _3 ], b7 b* p5 D' c* y[attach]1486500[/attach]
; C5 z. P, c0 H. R5.39.217.77:8898[attach]1486501[/attach]
, [/ a' @3 p2 G5 ATVBNOW 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]1486502[/attach]3 ~0 Z% d. z/ r  X) P$ A* B" z
[attach]1486503[/attach]tvb now,tvbnow,bttvb7 A0 E! W7 f0 e1 {
[attach]1486504[/attach]
0 F7 B5 q0 U+ f. u: Q[attach]1486505[/attach]2 w. m/ d# c; Q, o9 w
, m2 k5 O6 \9 _2 n8 b. g# v

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
7 D+ V0 ^6 K$ Q' o+ {公仔箱論壇連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
: G- [5 y/ F/ Utvb 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。
/ K6 b. D/ C# z% L' f$ A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" S% w, f9 t% D% E, f- d
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 u' h& w0 c. }( Ttvb now,tvbnow,bttvb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
) `! F( {- e8 y. c! }5.39.217.77:8898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。
+ F, c  q8 r! O" t  E6 c2 {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
2 v7 B3 _, u4 s: N9 @/ oTVBNOW 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。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