Estimate the quantity of earthwork from chainage 20 to 26 measured with standard 20m chain from the data:

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written 6.5 years ago by

teamques10 ★ 69k

• modified 5.6 years ago

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The formation level at chainage 20 is 88.5 and road has a rising gradient of 1 in 100.The formation width of road is 10m and side slope in cutting 1:1 and banking 2:1.

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written 6.5 years ago by

teamques10 ★ 69k

Using Mid-section Method

$\frac{1}{100}=\frac{X}{20} \\ X=0.2$ Area = Bdm + Sdm²

Volume = Area×Length

Formation width = B = 10m

Slope in cutting = 1:1 & Slope in banking = 2:1

Total Quantity in Banking = 642.8 m³

Total Quantity in Cutting = 652.83 m³

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