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

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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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Using Mid-section Method

1100=X20X=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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