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 www3.tvboxnow.com0 Q: ^' y) z( m" e( ~' i2 N+ l

' Y+ F! v8 k, t( ~# }! HIf you are not a Physics person, read on and learn a fact of physics.   公仔箱論壇/ I" }: C8 k9 Z
AMAZING!

; J  u1 q- ?) D# g0 _, O: x: K; f$ ?
Even after you see it, it is still hard to believe!

; E- ]' m, _7 O% q; N公仔箱論壇( V& j, B0 }7 c1 \( y
" z# B( o; d# k$ @
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
) z# s1 e2 j; NThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ t& I2 n. k7 p; X! Vtvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
公仔箱論壇5 X6 w9 c( f6 B' L: G3 z1 o& ]

0 K8 e: p- {' A% p! }The photo was taken on the day of inauguration.
9 W4 u+ O/ d" m8 Z6 S5 q, x. ATo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
- _- B# T" F8 m( n  i5 q
2 h: L& `* Y+ H% a  y: kQuestion:

# C; t/ L/ Z: @* \% Z# C6 l
. W) q: F7 n3 B8 C' uDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
$ U  Q, P" s. u) ^) V9 \  e- X, B公仔箱論壇Or just the weight of the water? tvb now,tvbnow,bttvb8 l, B" w8 I; \1 @0 M7 s1 ~
" U3 Z0 [+ N2 ^* o3 `+ P: X- m) i
Answer:

+ D+ \, l- E8 Swww3.tvboxnow.com- `9 O! {* R! j$ B3 E$ U* {0 O5 Z
It only needs to be designed to withstand the weight of  the water!
& Z4 ?0 X& @% m公仔箱論壇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

& S' ]* I/ S! {5 g+ H7 J3 Vwww3.tvboxnow.com! w# Y8 |$ U( d3 U
公仔箱論壇3 z6 u8 W* K( t8 c  \. o* P0 p/ Z
The Incredible Magdeburg Water Bridge in Germany
/ F9 D' `  W7 W8 Q$ x* p+ n7 p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.www3.tvboxnow.com! E6 L* M8 `4 ^, a7 H0 [
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.
9 l" r( n. J4 x# C( Y7 S
9 v( G: ]! g9 {2 n8 `1 W7 k: [: {- s公仔箱論壇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.
! \, S9 w4 ~+ H$ C
www3.tvboxnow.com  s- W1 G. x, I2 G) l5 R7 v

/ M. u' G: M5 g$ o; ETVBNOW 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。
6 m6 X( V; S- N3 W0 u1 `3 _www3.tvboxnow.com
. u2 j: [/ ~  O: Mwww3.tvboxnow.com
: W& R  _. ?5 gtvb now,tvbnow,bttvb8 |4 G. ~5 u& n/ ^
/ o& O* h' c2 A' P
4 ]& M3 H" }7 K

- }0 m1 w7 m% s! g) m+ j3 s
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
+ v" [$ |, Y" N/ c7 r5 l: S3 z% 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
& H& i( m0 S" ]; Q* o5 g0 O2 `也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。2 Q& j; f! o* f# p4 F. z+ R
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。/ W4 N" M! {% y! `6 t
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。
) d4 B! K$ u- m1 E9 e% ~8 @$ uwww3.tvboxnow.com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; G: ^9 u* o- M7 h
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。 # }4 Z; Z  a( h) O. U$ a
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。" _6 u; @  c8 h* l
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