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Earth Quantities Hauled

Many people wonder that why the soil looks bulkier after excavation. The answer is that with increase in voids, the volume of soil increases and thus the soil pile looks bulkier. Here is a mathematical formula for this change in soil volume

Vb = VbL = (100/(100 + % swell))VL
Vb = original volume, yd3 (m3),
VL = loaded volume, yd3 (m3),
L = load factor

Similarly when we compact the soil, its volume decrease as voids are now filled.
Vc = VbS
Vc = compacted volume, yd3 (m3)
S = shrinkage factor.

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Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

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