This informative article aims at figuring out the exact method for determining the concrete volume in circular pile containing 3 caps.

The length of the pile cap is 3 meter and the height is 1 meter. It is believed that the pile diameter is 600 mm. The radius is indicated as 300 mm or 0.3 m (1/2 of diameter).

The height of the pile height is provided at 20 m. The quantity of pile is retained as 3.

To work out the volume of pile concrete, the following formula is used:

• πr²h (here, r denotes pile radius and h denotes the height of pile)
• So, concrete volume = πr²h x 3 (because the numbers of pile caps are three)

After the value is set, the following is obtained:

• 3.14 x (0.3)² x 20 x 3 = 16.956 m³
• It is then necessary to determine the volume of each cap.

Adjust the pile form to square in this way. Subtract the two piles in the form of the triangle from the square shape.

Then take the form of the square as A and the two shapes of the triangle as B.

Then, A Volume = Length x Breadth x Height

After the value is placed, the following is obtained:

• A = 3 x 3 x 1 = 9 m³

It is then necessary to determine the volume of the two triangles as follows:

• So, B Volume = Area x Height
• B Volume = ½ x B x H x Thickness
• B Volume = ½ x 1 x 2 x 1 = 1 cubic meter

The volume is provided for 1 pile cap.

So, the volume of the pile cap should be = A – B – B = 9 - 1 – 1 = 7 m³