How to make estimation of a U-shaped wall

This civil engineering tutorial video will teach you how to make calculation for a U-shaped wall from the drawing provided.

Suppose, the lengths of both the sides are taken as 300 cm or 3 cm.
Radius up to center of the wall is taken as 2.15m

Initially, it is required to determine the length of any straight wall as follow :-
3+3+πx2.15 = 12.75 meter (here, r or radius = 2.15)

To construct the wall, the following activities should be performed :-
Excavation :-
L = 13.25, B = 0.80, H = 0.50
The breadth of concrete is taken as 80 cm
The breadth of the wall is taken as 30 cm
So, 80 – 30 = 50 cm = 0.5m

Now, add this with length of the straight wall as follow :-
12.75 m + 0.5 m = 13.25
So, the length of the excavation becomes = 13.25 m
The height of the excavation is taken from ground level to underneath. The height is taken as 0.50 m

Now, the quantity of the excavation work is determined as follow :-
Length x Breadth x Height = 13.25 x 0.80 x 0.50 = 5.3 m³

The second step is to pour concrete :-
The dimension of the concrete is same as above. The height is taken as 0.30 m

Also Read: Process for calculating the total numbers of bricks in a wall

Now, the quantity of concrete is determined as follow :-
Length x Breadth x Height = 13.25 x 0.80 x 0.30 = 3.18 m³
The next step is foundation brickwork & plinth brickwork.
Now total depth = 80 cm
Depth of brickwork = 30 cm
So, 80 – 50 = 30 cm or 0.30 meter
Now, this should be deducted from the length of the concrete.
So, Length of the brickwork = 13.25 – 0.30 = 12.95 meter
The breadth and height are given as 50 cm and 20 cm or 0.50 m or 0.20 m

The total quantity of the brickwork is determined as follow :-
Length x Breadth x Height = 12.95 x 0.50 x 0.20 = 1.30 m³

Now, determine the plinth brickwork as follow :-
Total depth = 80 cm
Depth of brickwork up to plinth level = 40 cm
So, 80 – 40 = 40 cm = 0.40 m
Now, this should be deducted from the length of the concrete.
So, Length of the brickwork in plint = 13.25 – 0.400 = 12.85 meter
So, total length = 1.30 + 3.08 = 4.38 m³
So, total brickwork in foundation = 4.38 m³
Now, next step is DPC work. It is equivalent to wall i.e. it is provided up to the length & breadth of the wall.
The length of the wall is given as 12.75 m and breadth is given as 0.30 m
So, the quantity of DPC = 12.75 x 0.30 = 3.83 m²

To get more details, go through the following video tutorial.

Video Source: Civil Engineering