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At a given elevation, the thickness of the arch ring is proportional to the radius of the arch.

At a given elevation, the thickness of the arch ring is proportional to the radius of the arch. Correct Answer True

The thickness of the arch ring (t) under limits is given by – t = ϒw . h. r / fc where r is the radius of the arch, h is depth, fc is the allowable compressive stress for the arch material and ϒw is the unit weight of water. It is clear from the above equation that the thickness of the arch is proportional to the radius of the arch at a given elevation.

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