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  HOME »  TEMPLATES »  DOCUMENTATION: EARTHWORK CALCULATIONS
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Documentation: Earthwork Calculations

This information is offered as documentation of the Earthwork with Undercut, Earthwork with Rock,
and Earthwork Between Excavation Limits template input file.

Notes:
Geopak adds the backfill to replace the Undercut into your Embankment quantities.
The Cross-Section Earthwork volume spreadsheet was also designed to work with these templates.

The level symbologies and explanations are below:

  • Unsuitable Subgrade/Subsoil Excavation (Undercut)
    LVName = Prop XS Earthwork Undercut
    Note: Geopak refers to this Undercut as Subgrade/Subsoil Excavation and will return the quantity as Subsoil excavation. The Cross-Section earthwork volume spreadsheet recognizes this as Undercut.

  • Unsuitable Common Excavation
    LVName = Prop XS Earthwork Unsuitable Unclassified
    Note: This is not paid for as Undercut and the Cross-Section earthwork volume spreadsheet adds this quantity to Unclassified Excavation.

  • Rock Line
    LVName = Prop XS Earthwork Rock Hard Degradable
    LVName = Prop XS Earthwork Rock Hard Nondegradable
    LVName = Prop XS Earthwork Rock Weathered Degradable

  • Limit Line
    LVName = Prop XS Earthwork Geopak Lower Limit Line
    Note: You may want to think of this as the "bottom" of your Rock. Geopak needs this line to compute Rock quantities.


    The way Rock is defined in the input file can be a bit confusing, so consider the following:

    This is the Limit Line

           Existing suitable material
                soil type = rock
                fill mult factor =
                type = line,line_string
                lvname = Prop XS Earthwork Geopak Lower Limit Line
    
    This is the Rock Line
           Existing suitable material
                soil type = suitable
                fill multiplication factor =
                type = line,line_string
                lvname = Prop XS Earthwork Rock Hard Nondegradable
    

    SAMPLE OUTPUT
                Material Name    End Areas  Unadjusted Adjusted   Mult   Mass
    Station                                 Volumes    Volumes    Factor Ordinate
                                 (sq. ft.)  (cu. yd.)  (cu. yd.)
    ----------- ---------------- ---------- ---------- ---------- ------ --------
    
     1311+50.00 SUITABLE
                    Common Exc    1199.51     404153     404153   1.00
                  Subgrade Exc       0.00          0          0   1.00
                   Subsoil Exc       0.00          0          0   1.00
                        Fill      6920.11      57668      57668   1.00   346485
                UNSUITABLE
                    Common Exc    2805.72     101622     101622   1.00
                  Subgrade Exc       0.00          0          0   1.00
                   Subsoil Exc    3036.70      25306      25306   1.00
                        Fill         0.00          0          0   1.00   346485
                    Mass ordinate for UNSUITABLE = 126928
                ROCK
                    Common Exc     463.69       3864       3864   1.00
                  Subgrade Exc       0.00          0          0   1.00
                   Subsoil Exc       0.00          0          0   1.00
                        Fill         0.00          0          0   1.00   350349
                        



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