Run an Earthwork Report
Use the Earthwork Report to calculate volumes based on a single surface, or the comparison of two surfaces. The report allows you to separate earthen material volumes by a depth increment or an elevation interval, but it does not account for subsurface strata. You can also create a stockpile/depression from an existing stockpile.
Notes:
- This report is also one of several reports with a predefined template that you can modify to create a new custom report. See below.
- This report creates difference models (isochores), not surfaces. The isochore that is created by the report will be overwritten when the report is rerun unless the original isochore is renamed first.
- Optionally, if you are working with a point cloud, you can use the Extract Stockpile Featurecommand to click on one or more stockpiles and/or depressions to automatically create boundaries and compute volumes that display in the command pane and can be printed to a report.
Prerequisites:
- License; See the Subscription Plans page. For a license matrix by command, see the License page in the TBC Community. Also see View and manage licensed features.
- One or two surfaces
To generate a volume report:
- Do one of the following:
- Select Earthwork Report in Surfaces > View.
- Select Reports > Report Options in the Quick Access Toolbar and then double-click Earthwork Report in the list.
The Earthwork Report command pane displays.
Note: When performing this procedure using projected surfaces:
- You must select the Report Type: Surface to surface option.
- Both surfaces and a boundary, if used, must have the same UCS.
- The Elevation field is disabled because it is not applicable.
- The Volume Breakdown: By elevation interval option is disabled because it is not applicable. - Select the option for the type of surface report you want to generate in the Report type group.
- Stockpile/Depression - Calculate the volume of a single surface from its boundary.
- Surface to surface - Calculate the volumetric difference between two surfaces.
- Surface to elevation - Calculate the volume of a single surface above or below a specified elevation, as well as the maximum difference between the highest/lowest point on the surface and the elevation.
Options in the steps below will vary based on the report type you select.
Select the surface you want to report on, or the first surface to compare, in the Surface list. The classification for the surface displays below the box.
- Select the second surface to compare in the Final list, if applicable.
- Pick a point in a graphic view, right-click for options, or type a value in the Elevation field box, if applicable.
- Pick lines or a boundary to define the perimeter in the Boundary box, or click Options for more selection methods.
Note: When you specify a boundary, the reported Total triangulated area is the planimetric area of the isochore within the boundary. Usually the bounded area and the total triangulated area are identical (because the boundary is encompassed by surface area), but the latter can be smaller if the boundary extends beyond the surface. The total triangulated area should never be greater that the bounded area; that would mean that the boundary is not being respected in the calculations.
- To account for materials in the calculations, check Use in calculation in the Materials group.
Note: Before using this option, you need to have defined surface materials in the Material and Site Improvement Manager.
- Select the material at the site in the Native list.
- Select the material that will be brought to the site in the Fill (borrow) list.
- Select an option in the Volume Breakdown group.
- Click OK. The report displays in your default Internet browser.
To create a custom Earthwork Report from a template:
If you want the report to include different data or a different layout, follow the steps in Create and Edit Customized Report Templates.
