Practice Quiz

Surveying FS

Category - Plane Survey Calc

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Why is a correction factor applied to roadway earthwork volume calculations when the alignment includes a horizontal curve?
  1. To account for soil shrinkage or swell
  2. To account for the eccentricity of the curved area
  3. Answers A and B
  4. None of the above
Explanation
Answer: B - A correction factor is applied to roadway earthwork volume calculations when the alignment includes a horizontal curve to account for the eccentricity of the curved area.

A correction factor to compensate for soil shrinkage is applied to volume calculations to represent the volume of material in a “natural state” that is required to fill compacted roadway embankments. Additionally, a swell compensation factor may be required if rock or large stones are transferred from their natural state to a constructed embankment.
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