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Calculation For Road Work

Calculation For Road Work

Make an approximate estimate of earthwork in partially cutting and lengthwise filling with respect to road embankment by simply applying the mean area method.

The width of road development in the plain region is 22 ft. in addition to the cutting side slope will be 1:1 and 2:1 in filling.

The development level at RD corresponding to 0 is 575.00m ft.

The upward gradient of 200:1 should be maintained for the portion of the road. Given below, the details about natural surface levels at various RDs – Figure out the quantity of earthwork regarding the road.

Specific information:

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Cross-section at R.D. is equivalent to 0:

While employing Trapezoidal formula, Cutting area is equivalent to (a + b)/2 x d

In which – a is equivalent to development width, b is equivalent to total width of embankment and d is equivalent to embankment depth

Top width, a is similar to 22 ft

Depth, d is similar to -2.65 ft

Slope is identical to 1:1

Bottom width, b is similar to 27.3 ft

Cutting area is equivalent to (22 + 27.3)/2 x 2.65 equal to

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