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Topic: Shimantan Dam


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Dam

In the News (Thu 3 Dec 09)

  
  Dam Encyclopedia   (Site not responding. Last check: 2007-10-02)
The challenges of dam removal: the history and lessons of the Condit Dam and potential threats from the 2005 Federal Power Act amendments.
The IVEX Dam (Chagrin River, northeastern Ohio) failed catastrophically...
The failure was the result of seepage piping at the toe of the dam, near the masonry spillway-earthen dam contact...
www.hallencyclopedia.com /topic/Dam.html   (181 words)

  
 Dam
Timber dams were widely used in the early part of the industrial revolution and in frontier areas due to ease and speed of construction.
The locations where timber dams are most economical to build are those where timber is plentiful, cement is costly or difficult to transport, and either a low head diversion dam is required or longevity is not an issue.
An interesting type of temporary earth dam occasionally used in high latitudes is the frozen-core dam, in which a coolant is circulated through pipes inside the dam to maintain a watertight region of permafrost within it.
www.brainyencyclopedia.com /encyclopedia/d/da/dam.html   (2990 words)

  
 NationMaster - Encyclopedia: Flood
The Dutch had already build one of worlds largest dams in the north of their country: the Afsluitdijk (closing occurred in 1932) in response to a flooding in 1916.
Venice (Italian: Venezia, Venetian: Venexia), nicknamed the city of canals, is the capital of the region of Veneto and of the province of Venice in Italy.
The Banqiao Reservoir Dam (Chinese: 板桥水库大坝;;; Pinyin: BÇŽnqiáo Shuǐkù Dà bÃ) and Shimantan Reservoir Dam (Chinese: 石漫滩水库大坝;; Pinyin: Shímà ntān Shuǐkù Dà bÃ) are among 62 dams in Zhumadian Prefecture of Chinas Henan Province that failed catastrophically in 1975 during Typhoon Nina.
www.nationmaster.com /encyclopedia/Flood   (6118 words)

  
 The Catastrophic Dam Failures in China in August 1975
The policy of operation for the dam is an element in determining the probability of catastrophic failure.
Let the storage capacity of a dam be C and let G be the rate at which water can be passed through the dam based upon the number and size of the flood gates built into the dam.
The probability of a dam failure is a matter of the probability of the combination of F and D and (E/(F-G)
www.sjsu.edu /faculty/watkins/aug1975.htm   (1558 words)

  
 Asia Sentinel - The Rising Dragon’s Environmental Disaster
A dam may soon be built across the gorge and may soon block all of Yunnan’s great rivers, the last pristine rivers left in China.
One of the avowed purposes of the dam was to control the dangerous summer floods but it became clear that even if the dam had by then been completed it could not have prevented the floods or even reduced their threat.
Dam opponents put forward many other objections to the scheme ranging from the engineering difficulties, the economic cost, and most of all the difficulty of relocating up to two million residents, many of whom lived in cities and towns along the banks.
www.asiasentinel.com /index.php?option=com_content&task=view&id=274&Itemid=34   (4730 words)

  
 Dam information - Search.com
The locations where timber dams are most economical to build are those where timber is plentiful, cement is costly or difficult to transport, and either a low head diversion dam is required or longevity is not an issue.
In a constant-angle dam, also known as a variable radius dam, this subtended angle is kept a constant and the variation in distance between the abutments at various levels are taken care of by varying the radii.
A steel dam is a type of dam briefly experimented with in around the turn of the 19th-20th century which uses steel plating (at an angle) and load bearing beams as the structure.
www.search.com /reference/Dam   (3315 words)

  
 Articles - Dam   (Site not responding. Last check: 2007-10-02)
Rock-fill dams are embankments of compacted free-draining granular earth with an impervious zone.
A Steel dam is a type of dam briefly experimented with in around the turn of the 19th-20th century which uses steel plating (at an angle) and load bearing beams as the structure.
When water is held in the reservoir of a dam, the quality of water is affected in several ways, the extent of which depending on how long it is held there.
www.dotwater.com /articles/Dam   (2910 words)

  
 World's Greatest Disasters   (Site not responding. Last check: 2007-10-02)
On August 7, 1975, in the Henan providence in China, the Shimantan Dam along the Hong He river collapsed.
In a September 1999 story on The Learning Channel (TLC), they listed this tragic event as the world's greatest technological disaster.
The Shimantan Dam disaster does not represent the world's greatest tragedy, this is...
www.tobaccofreedom.org /issues/disasters   (73 words)

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