What is a double curvature dam?

Double curvature arch dam, in which curvature is provided not only in horizontal direction but also in vertical direction. It means the cross section of double curvature also looks like curve. The whole dam is looks like shell type so, it is also called as shell arch dam.

What are the 2 types of dams?

The two main types are earthfill dams and rockfill dams. Earthfill dams are made up mostly from compacted earth, while rockfill dams are made up mainly from dumped and compacted rockfill.

What is the difference between Cheruthoni Dam and Idukki Dam?

The Idukki Dam is a double curvature arch dam constructed across Periyar River in a narrow gorge between two granite hills and is the tallest double curvature arch dam in Asia. Cheruthoni Dam is located 1 km west of Idukki dam. The spill way of the Idukki Reservoir is in the Cheruthoni dam.

Which dam is the strongest?

1) Further down the Yangtze River in China lives the most powerful dam in the world: The Three Gorges Dam, which spans 1.45 miles and is 594 feet tall.

Which type of dam is stronger?

Hence, Arch dam is the dam which requires strongest abutment as canyon wall bears its most of the load. In gravity dam there is no requirement of the abutment as it resists the entire load with its own weight. While in Buttress dam, only some percentage of load is transferred through end buttresses acting as abutments.

Which is the oldest dam in the world?

Quatinah Barrage / Lake Homs Dam, Syria The Quatinah Barrage or Lake Homs Dam, located in Syria, is the oldest operational dam in the world. The dam was constructed during the reign of the Egyptian Pharaoh Sethi between 1319-1304 BC, and was expanded during the Roman period and between 1934 and 1938.

Why Idukki dam has no shutter?

One thing to be noted is, Idukki Arch dam doesn’t have any shutters to be opened so it has to rely on the Cheruthoni dam to maintain the reservoir water level.

Which is world’s largest dam?

Accroding to Wikimedia, the Three Gorges Dam is a hydroelectric gravity dam that spans the Yangtze River by the town of Sandouping, in Yiling District, Yichang, Hubei province, China. The Three Gorges Dam is the world’s largest power station in terms of installed capacity (22,500 MW).

What is Saddle dam?

Saddle dike or saddle dam means any dam constructed in a topographically low area on the perimeter of a reser- voir, required to contain the reservoir at the highest water surface elevation.