Definition ๐งพ:
A barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply.
"The dam burst after torrential rain"
An arch dam is a concrete dam that is curved upstream in a plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, compressing and strengthening the structure as it pushes into its foundation or abutments.
An arch dam is most suitable for narrow canyons or gorges with steep walls of stable rock to support the structure and stresses. Since they are thinner than any other dam type, they require much less construction material, making them economical and practical in remote areas.
Arch dams classified with respect to their structural height are:
Low dams up to 100 feet (30ย m),
Medium-high dams between 100โ300ย ft (30โ91ย m)
High dams over 300ย ft (91ย m).
General dams classified based on base thickness and height relations:
Thin arch<0.2h
Medium arch0.2h - 0.3h
Thick arch>0.3h
Arch-gravity>0.5h
History: The 1st Arch Dam construction โฒ๏ธ
The first known arch dam, the Glanum Dam, also known as the Vallon de Baume Dam, was built by the Romans in France and it dates back to the 1st century BC.
The dam was about 12 metres (39ย ft) high and 18 metres (59ย ft) in length. Its radius was about 14ย m (46ย ft), and it consisted of two masonry walls. The Romans built it to supply nearby Glanum with water.
You May Also Like:
Basic Design Types ๐
There are two basic designs for an arch dam: constant-radius dams, which have a constant radius of curvature, and variable-radius dams, which have both upstream and downstream curves that systematically decrease in radius below the crest. A dam that is double-curved in both its horizontal and vertical planes may be called a dome dam
Advantages of Arch Dam
1. Arch dams are particularly adapted to the gorges where the length is small in proportion to the height.
2. For a given height, the section of an arch dam is much lesser than a corresponding gravity dam.
Hence, an arch dam requires less material and is, therefore, cheaper.
3. Because of much less base width, the problems of uplift pressure are minor.
4. Since only a small part of water load is transferred to the foundation by cantilever action,
Sources: civilseek.com
google seo google seoๆๆฏ+้ฃๆบTG+cheng716051;
game game
game game
Fortune Tiger Fortune Tiger;
game game
Fortune Tiger Fortune Tiger;
Fortune Tiger Fortune Tiger;
Fortune Tiger Slots Fortune Tigerโฆ
03topgame 03topgame
EPS ะผะฐัะธะฝั EPS ะผะฐัะธะฝั;
EPS Machine EPS Cutting Machine;
EPS Machine EPS and EPPโฆ
EPS Machine EPS and EPPโฆ
EPS Machine EPS Cutting Machine;
google seoโฆ
EPTU Machineโฆ
EPP Machineโฆ
EPP Machineโฆ
EPP Machineโฆ
EPP Machineโฆ
EPTU Machineโฆ
EPTU Machineโฆ
EPTU Machineโฆ
EPTU Machineโฆ
Android Android
game game
google seoโฆ
game game
game game
Fortune Tigerโฆ
game game
Fortune Tigerโฆ
Fortune Tigerโฆ
Fortune Tigerโฆ
game game
google seo google seoๆๆฏ้ฃๆบTG-cheng716051;
03topgame 03topgame
game game
Fortune Tiger Fortune Tiger;
EPS ะผะฐัะธะฝั EPS ะผะฐัะธะฝั;
Fortune Tiger Fortune Tiger;
EPS Machine EPS Cutting Machine;
EPS Machine EPS and EPPโฆ
EPP Machine EPP Shape Mouldingโฆ
EPS Machine EPS and EPPโฆ
EPTU Machine ETPU Moulding Machine
EPS Machine EPS Cutting Machine;
google seo google seoๆๆฏ้ฃๆบTG-cheng716051;
03topgame 03topgame
Jogos JOGOS
Fortune Tiger Fortune Tiger;
Fortune Tiger Slots Fortune Tigerโฆ
Fortune Tiger Fortune Tiger;
EPS ะผะฐัะธะฝั EPS ะผะฐัะธะฝั;
Fortune Tiger Fortune Tiger;
EPS Machine EPS Cutting Machine;
EPS Machine EPS and EPPโฆ
EPP Machine EPP Shape Mouldingโฆ
EPS Machine EPS and EPPโฆ
EPTU Machine ETPU Moulding Machine
EPS Machine EPS Cutting Machine;