This is the world's second and Asia's first arch dam, constructed across the Kuravan and Kurathi hills, 550 ft. high and 650 ft. wide.The dam lies close to the Cheruthoni barrage. To its west is the Kulamavu Dam. Idukki Wildlife Sanctuary is located close by.
2 comments:
What was the first arch dam? To my non-engineer's eye, the Hoover Dam certainly looks like an arch, but surely that can't be the single other arch to which you refer?
Hi Tiger,
The Hoover Dam is a curved gravity dam. Lake Mead pushes against the dam, creating compressive forces that travel along the great curved wall. The canyon walls push back, counteracting these forces. This action squeezes the concrete in the arch together, making the dam very rigid. This way, Lake Mead can't push it over.
An arch dam is dependent on its shape for strength, requires less material to build, and is relatively thin.
The first known arch dam is Kebar, which was built around 1280 AD in the Mongol period. The limestone dam is located near the ancient town of Quam and stands 85 ft high, 180 ft long at the crest, 16 ft thick at the crest and has a constant radius of curvature of 125 ft. An arch dam needs to be supported by the surrounding geology, the rock formations on either side support the arch.
I was talking about Dams which is still being used . There are lot of Arch Dams in the world.
Post a Comment