Volume

The Volume command allows you to create a volume report between two different surfaces. Commonly:

1. A file or data that represents "final" surface conditions (e.g. as-built or as-designed), and,
2. A file or data that represents "original" surface conditions (e.g. as-designed or as-existed)

Note: The surfaces are normally created in advance with the Triangulate & Contour command but can also be generated "on-the-fly."

Note: In the dialog above, distinct surface approaches have been specified to expose different aspects of the interface options which are basically shared between the two surface definitions.

Final

• File: When enabled, use the Select button to launch the standard File Selector to specify the location and file name of a *.TIN or *.GRD file.
• Points, Breaklines by Layers: When enabled, use the Define button to specify the layer(s) that contain the points and/or breaklines to use for the surface.
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  • Save Surface to File: When enabled, the results of the triangulated data are stored into an external *.TIN file.

    Note: The ability to establish the file name will occur later in the command and default file names will be offered:

    1. Original.tin
    2. Final.tin
  • Point Range: Indicate the point numbers that should be used to determine the surface.
  • Point Wildcard Descriptions: Indicate if any specific type of point description(s) should be used to further filter the available points.
  • >> & >: Use these buttons to move all available layers or the selected layer to the Used (right) side, respectively.

    Note: Only Thawed (layers that are On) will appear in either list.

  • < & <<: Use these buttons to move the selected layer or all available layers to the Available (left) side, respectively.
• Incl/Excl: When enabled, pre-existing closed polylines (2D and/or 3D) can be used to limit the area(s) where volume calculations are performed for both Inclusion (boundary) and Exclusion (void region) areas.
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  For each option, select the desired method to establish the geometry:

  • Map: The polyline(s) are selected from the Map screen.
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    Upon pressing ✅, prompts include:

    1. -Rem/Prev/Cross/Select inclusions(S)> [count] Specify the desired option(s) to specify polygon area(s) that prevent volume calculations from occurring outside the selected inclusion (boundary) polyline(s):
       • Rem: Removes a previously selected polyline.
       • Prev: Selects the previously selected polyline.
       • Cross: Use this option to batch select polylines that are inside or cross a rectangular area formed by two graphic pick locations.
       • Select inclusions(S): Use this option to individually select the polygon region(s) that are to be used as the inclusion perimeter(s).

       Note: Press Enter to continue with the next prompt.

    2. -Rem/Prev/Cross/Select exclusions(S)> [count] Specify the desired option(s) to specify polygon area(s) that prevent volume calculations from occurring inside the selected exclusion (void area) polyline(s) (i.e. areas inside building footprints).

       Note: The various switch options are the same as those described above.

  • Layer: When enabled, use the Layer button to specify the Layer that contain the Inclusion or Exclusion polylines.
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Original

• File: When enabled, refer to the logic as described above for the Final surface.
• Points, Breaklines by Layers: When enabled, refer to the logic as described above for the Final surface.
• Elevation: When enabled, specify a constant elevation value as the basis for the surface.
• Stockpile/Pit: When enabled, make the effort to put the outer 3D polyline perimeter explicitly in the PERIMETER layer. You don't need any other definition for the original surface because the 3D Polyline on the PERIMETER layer will define both the inclusion perimeter and the original surface.

Volume Report Options

• File Type: Indicate a preferred file format for the volume report summary.
• Cut Swell Factor: For areas in Cut, indicate a factor that is to be applied to the Cut "bank volume."
  • Cut Swell Factor > 1 (example 1.15) - Supplying a Cut Swell Factor greater than 1 would usually be taken to mean "How much volume will my 1,000 C.Y. of material occupy when it comes out of the ground?" With a 15% swell factor (1.15) applied, the 1000 C.Y. of excavated material would now occupy 1,150 C.Y. of space.
  • Cut Swell Factor < 1 (example 0.85) - Supplying a Cut Swell Factor less than 1 would usually be taken to mean "How much volume will 1,000 C.Y. of material occupy in this hole when it has been compacted?" With a 15% compaction factor (0.85) applied, the 1000 C.Y. of material getting compacted would now occupy 850 C.Y. of the hole space.
• Fill Shrink Factor: For areas in Fill, indicate a factor that is to be applied to the Fill "bank volume."
  • Fill Shrink Factor > 1 (example 1.10) - Supplying a Fill Shrink Factor greater than 1 would usually be taken to mean "How much volume would this 1,000 C.Y. of material occupy if it were picked up and deposited elsewhere?" With a 10% swell factor (1.10) applied, the 1000 C.Y. of stockpile material would occupy 1100 C.Y. of space.
  • Fill Shrink Factor < 1 (example 0.90) - Supplying a Fill Shrink Factor less than 1 would usually be taken to mean "How much volume will 1,000 C.Y. of stockpile material occupy when it has been compacted?" With a 10% compaction factor (0.90) applied, the 1000 C.Y. of material getting compacted would now occupy 900 C.Y. of the hole space.

  Note: In a design Fill scenario (such as a berm), often it is desired to know how much material would need to be brought in at a given compaction factor to occupy the design fill. To determine this value, use the following equation:

  Fill Factor = 100.0/(100.0 - shrink_percentage), using 15% shrink as an example,
  Fill Factor = 100.0/(100.0 - 15.0) = 1.17647

• Report Tons: When enabled, the weight of the Cut/Fill material will be reported.
• Density: Indicate the density of the material in the cited units.
• Save Merged Surface to File: When enabled, a *.TIN file that represents the relative Cut/Fill depths between the two surfaces is saved.