Constructii Hidro ppt
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Transcript of Constructii Hidro ppt
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Efecte ale CH
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Baraje mobile / stavilare
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Baraje gonflabile
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Portile de Fier I
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Hagestein - Olanda
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Maeslant Barrier - Olanda(Rotterdam)
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CONCRETE DAM EVOLUTION
Predecessors of modern dams are masonrydams dating back more than 2000 years.Upstream and downstream faces have been
formed by dressed masonry and the main body comprises rubble masonry bedded inlime mortar;
With the advent of Portland cement theconcrete dam has largely replaced the
masonry dam.
Along the years the concrete dam hasdeveloped into a number of specific types such as the buttress and the doublecurvature arch.
The use of earth moving plant has firmlyestablished roller compaction as thefrequently preferred method for massconcrete construction.
In gravity structures the water thrust fromupstream is resisted through slidingresistance at the base.
RCC dam
FSHD
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CONCRETE DAM EVOLUTION
Masonry arch
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CONCRETE DAM EVOLUTION
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CONCRETE DAM EVOLUTION
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CONCRETE DAM EVOLUTION
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CONCRETE DAM EVOLUTION
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CONCRETE DAM EVOLUTION
Multiple arch and buttresses
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CONCRETE DAM EVOLUTION
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CONCRETE DAM EVOLUTION
Massive Head ButtressPoiana Uzului Dam, H = 80m
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CONCRETE DAM EVOLUTION
Arch dam
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CONCRETE DAM EVOLUTION
8 m
RCC Dam
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EMBANKMENT DAM EVOLUTION
The earliest dams, and even today thesimplest dams, are homogeneous earthembankments:That is, the material used for the constructionremains essentially constant throughout.
The inevitable development was the zoneddam.
In the case of the zoned earthfill or rockfill dam,materials are selected and used for their specificproperties and in proportions guided by local siteavailability.
The next great change came with theincreased compaction effected by vibratoryrollers that permitted the construction of
faced rockfill dams.In such dams, the principal body is composedentirely of rockfill, and the waterproof membraneis placed on the sloping upstream face. Modernfacings tend to be of reinforced concrete or asphalt
HomogenousEmbankment
ZonedEmbankment
EmbankmentwithWaterproofFacing
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EMBANKMENT DAM EVOLUTION
Homogeneous earthfill
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EMBANKMENT DAM EVOLUTION
Inclined core earthfill
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EMBANKMENT DAM EVOLUTION
Clay core rockfill
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EMBANKMENT DAM EVOLUTION
Concrete Face Rockfill
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EMBANKMENT DAM EVOLUTION
Asphaltic core Rockfill
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EMBANKMENT DAM EVOLUTION
Asphaltic Face Rockfill
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Schema de principiu a unei ecluze
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Three Gorges (China)2 lines of 5 locks + Shiplift (120m)
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Lifturi verticale / cu plan inclinat
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Lifturi verticale / cu plan inclinat
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Lifturi verticale / cu plan inclinat
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Lifturi verticale / cu plan inclinat
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Falkirk Wheel (UK)
Th F lki k Wh l
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The Falkirk Wheel(Scotland)
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Boat entering the Wheel
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the boat
ew o oa s n e
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ew o oa s n ecradles