Enter a tool name or topic.
Estimate the geometric quantity of material occupying a straight, uniform trench around one circular pipe. The calculator first measures the rectangular excavation from length, width and depth, then subtracts the external cylindrical volume of the pipe over the same length. The difference is a theoretical backfill space in cubic metres, not a truck-delivery volume or a compacted-soil purchasing quantity. Bedding, manholes, other ducts and changes in trench profile are not deducted.
Choose a task. Inputs stay in this page only.
A 200 mm outside diameter equals 0.2 m. The 20 m cylindrical pipe displaces about 0.628 m³ of the rectangular excavation.
The calculated remainder excludes only one pipe. It is not yet adjusted to represent delivered loose soil or compacted fill.
Not without accounting for the specified bedding zones, supply material, wastage and loose-to-compacted volume factors. This is geometric trench volume.
The current formula subtracts only one round pipe. Estimate additional displacements and separate chambers explicitly rather than relying on this output as a complete bill of quantities.
Calculate approximate soil excavation for a rectangular pit with either vertical walls or uniform outward side slopes, and estimate loose transport volume after swell.
Estimate loose soil delivery from compacted backfill volume and a chosen conversion factor. The loose-to-compacted multiplier is site-specific; do not treat its example as a standard.
PangPang Tools