Pile Cap Concrete Quantity Calculation

In this exclusive video tutorial, presented by the renowned engineer Mukesh Shah, you will learn how to determine the volume of concrete in circular pile with three caps.

The length of the pile cap is 3 meter and the height of the pile cap is 1 meter.

The diameter of the pile is taken as 600 mm

The radius is given as 300 mm or 0.3 m (half of dia)

The height of the pile is taken as 20m

Numbers of pile are given as 3

Concrete volume of pile is determined with the following formula :-
πr2h (here, r denotes radius of pile and h denotes height of pile)
So, concrete volume = πr²h x 3 (as there are 3 nos. pile caps)

After putting the value, we get the following :-
3.14 x (0.3)² x 20 x 3 = 16.956 cubic meter
Now, it is required to determine the volume of each pile cap.

For this purpose, change the shape of the pile to square. Now, deduct both the triangle shape piles from square shape.

Now, take the square shape as A and both the triangle shapes as B.

Now, Volume of A = Length x Breadth x Height

Also Read: Some useful construction tips for effective pile cap design

After putting the value, we get the following :-
A = 3 x 3 x 1 = 9 cubic meter

Now, it is required to determine the volume of both the triangles as follow :-
So, Volume of B = Area x Height
Volume of B = ½ x B x H x Thickness
Volume of B = ½ x 1 x 2 x 1 = 1 cubic meter

This volume is for one pile cap.
So, volume of pile cap = A – B – B = 9 -1 – 1 = 7 cubic meter

Go through the following video tutorial, to get more clear idea.

Video Source: L & T - Learning Technology