How to find the volume of retaining wall ?

The main purpose of the volume of retaining wall calculation is to retain the earth pressure, it is mostly used in the hilly areas to avoid the slides due to natural effect and earth pressure.

It is very simple to calculate the volume of retaining wall. Let solve the following example.




Example:

The retaining wall is 20 feet in length and its height is 50 feet also the thickness is varying from 2 feet to 1 foot and. And the foundation bed dimensions are 20 feet in length and width is 10 feet and thickness is 1 foot. To calculate the total volume of the retaining wall?

Solution:

first, we calculate the volume of the vertical wall and then we find out the volume of foundation bed or base slab.

the volume of the vertical wall

=  volume of vertical wall + volume of the base slab or foundation bed

the volume of vertical wall = length x height x thickness





= 20 x 50 x ratio of thickness from bottom to top

= 20 x 50 x 1 + 2/2

= 20 x 50 x 3/2

= 1500 cft

 

Volume of base slab

= lenght x  width  x  thickness

=  20 x 10 x 1

= 200 cft

 

The total volume of retaining wall

A total volume of retaining wall

= volume of vertical wall + volume of the base slab or foundation bed

= 1500 + 200

= 1700 cft

to convert it into the cubic meter, we divide this value is by 35.3147. Because in 35.3147 cft are in the one cum.

= 1700 / 35.3147

= 48.13 cum


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