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
/ r* v( T( |$ g1 Z6 s0 W2 b4 n" e2 y$ o3 t
If you are not a Physics person, read on and learn a fact of physics.   
% c* X% T0 b; {2 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。AMAZING!

" ?$ ]1 T; A7 |; L3 o2 ?6 v
# v6 Q4 @  H/ U: z/ K7 Q) r) eEven after you see it, it is still hard to believe!
5.39.217.77:88988 V% a. t# {! i2 x7 i
[attach]1486499[/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。4 r; D2 G& I, 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。  a% }2 _+ I( K
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
( K8 D& i5 R5 g" KThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb# I! k' P- m6 `0 _
It is located in the city of Magdeburg, near Berlin.

- b0 }% `* d( P* n/ P! DTVBNOW 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。
# R5 H3 b( ]2 {# L! XThe photo was taken on the day of inauguration.公仔箱論壇- F7 l# I) i" d) _0 ~; ^% k
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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; u1 E. |5 N
tvb now,tvbnow,bttvb; Z9 _' F% ?+ v6 B$ n% f0 b
Question:
tvb now,tvbnow,bttvb2 [% ^* T4 v9 p6 ?

1 @) E) R7 u: N9 b" N. aDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5 a: a* X( I2 o" z
Or just the weight of the water? 公仔箱論壇0 u" s5 h4 I$ B8 K2 e+ I

2 R, r! ~0 r; K公仔箱論壇Answer:

* v5 z% X5 D7 Y& b+ 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。tvb now,tvbnow,bttvb6 q" K( T, w5 [
It only needs to be designed to withstand 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。3 S1 p: ?6 v0 f
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
tvb now,tvbnow,bttvb# N4 @* n( D3 ]4 [+ j* z. R% E

) `4 n  t" Q! U3 v
" q9 Z  O) t" ]0 O5 v6 }0 [
The Incredible Magdeburg Water Bridge in Germany
: Z) j) {+ c+ y. t' W0 V2 x9 S; rThe 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.
6 j+ Y% g* z% j% b
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.
  g1 g" g$ }# v. q; u2 K4 e- v* I. m
# v2 o1 g3 |4 @/ Z# h& qConstruction 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.

7 k1 _" M& o  P: S6 o) x. G
5.39.217.77:88987 ^- k7 |& m5 i

/ }# w7 a" \6 ^* j3 ?% ~& y[attach]1486500[/attach]
8 e6 L1 j" N, h4 N[attach]1486501[/attach]
9 E& j& ~9 X/ T/ R" i- C5 f/ tTVBNOW 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]
0 P, `/ k: I3 G1 V, G+ I$ @+ y5.39.217.77:8898[attach]1486503[/attach]5.39.217.77:8898! f% d3 _& k$ `" h* C
[attach]1486504[/attach]
+ a+ O0 P% x8 htvb now,tvbnow,bttvb[attach]1486505[/attach]tvb now,tvbnow,bttvb9 d7 U7 v" j: t2 t- d5 a3 H
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。& M' H" f2 k9 n6 D- }

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5.39.217.77:8898+ I: H3 I6 F7 p5 P+ `
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 n8 P9 ?* z* U/ g$ H" ^公仔箱論壇也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
; S+ N, P9 X- Z* o2 A  S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。4 S& Z$ s8 o* x0 P6 o- _$ v
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。- u9 l% Z9 ]: W, P* U( c1 C
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
1 Q# u7 \) z& l) j5.39.217.77:8898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。 5.39.217.77:8898$ q% V0 }) [. ^# n% L8 p
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
% }+ l! O, w0 t' W0 `( [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