Back filling of Excavated Earth

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Backfilling is the process of refilling an excavation site with soil or other material after construction work has been completed. This process is important for several reasons, including:


Structural support: Backfilling helps to provide structural support for the foundation of a building or other structure. It helps to evenly distribute the weight of the structure and prevent it from settling unevenly or collapsing.


Erosion control: Backfilling helps to prevent erosion by stabilizing the soil and preventing it from being washed away by rain or other natural forces.


Safety: Backfilling helps to prevent accidents and injuries by filling in any holes or trenches that could pose a hazard to people working on the site or to the general public.


Aesthetics: Backfilling helps to restore the appearance of the site and make it look more attractive and cohesive.


To backfill an excavation site, the following steps should be taken:


Remove any debris or construction materials from the site.


Compact the soil in the excavation area using a plate compactor or roller.


If necessary, add in additional soil or other materials to bring the level of the site up to its original grade.


Compact the soil or other materials again to ensure that they are properly consolidated and will not settle or shift over time.


Finish the surface of the backfilled area by grading it and smoothing it out.


By following these steps, you can effectively backfill an excavation site and ensure that it is safe, stable, and aesthetically pleasing. It is important to carefully plan the backfilling process and to use the appropriate equipment and materials to ensure that the site is properly filled and prepared for future use.






Alam And Associates

alamandassociates7@gmail.com


To find the quantity for back filling of the excavated earth, we have to subtract the volume of foundation from the volume of excavated earth.

Suppose, the length of the foundation is 3400mm

The breadth of the foundation is 2600mm, and the depth is 5400mm and the number of foundations is 15, then our values will be

L = 3400 or 3.4m

B = 2600 or 2.6m

D = 5400 or 5.4m

 

And our calculation for excavation in earthwork will be (Length X Breadth X Depth)

=3.4 x 2.6 x 5.4 mᶟ

=47.74 mᶟ

For 15 nos. of footing, 15 x 52.45 cu m = 716.1 mᶟ

Sl. No

Description of Item

Nos.

Length

Breadth

Depth

Quantity

Unit

1

RCC work in footing

15

3.4

2.6

5.4

716.1

Cu m

 And our calculation for excavation in earth work will be (Length X Breadth X Depth)

=3.5 x 2.7 x 5.55 mᶟ

=52.45 mᶟ

For 15nos. of foundation , 15 x 52.45 cu m = 786.75 mᶟ

Sl. No

Description of Item

Nos.

Length

Breadth

Depth

Quantity

Unit

1

Excavation in Earth Work

15

3.5

2.7

5.55

786.75

Cu m

 

Then, our back filling quantity will be,


And our calculation for excavation in earth work will be (Length X Breadth X Depth)

=3.5 x 2.7 x 5.55 mᶟ

=52.45 mᶟ

For 15nos. of foundation , 15 x 52.45 cu m = 786.75 mᶟ

Sl. No

Description of Item

Nos.

Length

Breadth

Depth

Quantity

Unit

1

Excavation in Earth Work

15

3.5

2.7

5.55

786.75

Cu m






2

RCC work in footing

15

3.4

2.6

5.4

716.1

Cu m


3Back filling



70.65

Cu m

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