Distance between two points is 320m the ground level at different chainages are

G.L $\hspace{2cm}$ 120.5 $\hspace{0.5cm}$ 12.1 $\hspace{0.5cm}$ 119.7 $\hspace{0.5cm}$ 119.2 $\hspace{0.5cm}$ 118.5 $\hspace{0.5cm}$ 118.2 $\hspace{0.5cm}$117.7 $\hspace{0.5cm}$ 117.3 $\hspace{0.5cm}$ 117.5

Chainage $\hspace{1.5cm}$ 0 $\hspace{1.2cm}$ 1 $\hspace{1cm}$ 2 $\hspace{1cm}$ 3 $\hspace{1.1cm}$ 4 $\hspace{1.3cm}$ 5 $\hspace{1cm}$ 6 $\hspace{1cm}$ 7 $\hspace{1cm}$ 8

$\hspace{3cm}$ A $\hspace{11.7cm}$ B

Estimate the cost of earthwork involved given that formation width is cutting 5.5m and in banking 6m side slope in cutting 1.5:1 and is banking 2:1. Take rate of earthwork Rs.120/cu m in cutting and Rs.125 per cu m in filling

Mumbai University > CIVIL > Sem 7 > Quantity survey Estimation and valuation

Marks: 10 M

Year: Dec 2013

$$\frac{118.9-118.1}{320}=\frac{1}{400}=\gt\frac{x}{40}=\frac{1}{400} \\ \; x=0.1 \mathrm{(falling)} \\ \; A_{cut}=bh+sh^2=5.5h+1.5h^2$$

$$A_{banking}=bh+sh^2=6h+2h^2$$

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