Answer / Umesh Kumar Morya

Calculating the concrete quantity for an under-reamed pile requires knowing the specific formula, which can be complex and depends on the exact shape of the pile. However, I will provide you with a basic calculation for a cylindrical pile:

For a cylindrical pile with a diameter 'd' and height 'h':
Volume = π * (d/2)^2 * h

In your case:
r = diameter / 2 = 300mm / 2 = 150mm
So, d = 300mm, which gives us a volume of approximately 6.4 cubic meters.

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