Question

A fill having a volume of 1,50,000 cum is to be constructed at a void ratio of 0.8. The borrow pit soil has a void ratio of 1.4. The volume of soil required (in cubic meters) to be excavated from the borrow pit will be

• A. 1, 87, 000
• B. 2,00,000
• C. 2,10,000
• D. 2,50,000

Answer 1

The correct option is B 2,00,000

(b)
The volume of soil solids from borrow pit soil and from fill should be equated.

$V_s=\frac{V_1}{1+e_1}=\frac{V_2}{1+e}$

$V_1=V_2\times \frac{1+e_1}{1+e_2}$

$=150000\times \frac{1+1.4}{1+0.8}$

$=2,00,000m^3$