Trimble Business Center

Is there a reason that when you create one surface of two stockpiles that but up against each other, create two boundaries with one common line, run two earthwork reports as a stockpile/depression each with their own boundary, that it still seems to treat the volume as a stockpile with a bottom surface that follows "up the stockpile" along the common line?

Background:

- One stockpile comprised of traffic gravel from 2022 and traffic gravel from 2023 - dip in the middle of the pile where the two roughly meet, still about 1m above the existing ground at the dip

- Existing ground surrounding stockpile is fairly flat.

- Collected lidar data with a drone and GPS points/breaklines for the actual toes and dividing boundaries (snow around edges, had to remove some lidar data)

- Created a surface in TBC comprised of points, breaklines, and filtered/reduced point cloud data

• Ran a stockpile/depression earthwork report for the entire stockpile with no boundaries - say it was 4000 m3
• Ran a stockpile/depression earthwork report on the same stockpile using boundary 1 - say it was 170 m3
• Ran a stockpile/depression earthwork report on the same stockpile using boundary 2 - say it was 2800 m3
•  Missing 1030 m3 of material

- Created a second surface with the only the toe of the stockpile

• Ran a surface to surface earthwork report using the "Toe" surface and the "Stockpile" surface with no boundaries - say it was 4000 m3 which is great
• Ran it again using Boundary 1 - say it was 455 m3
• Ran it again using Boundary 2 - say it was 3545 m3
• No missing material

Is it just me, or should the stockpile/depression report run the surface in it's entirety and cut it off straight down at the surface boundary like how it does during a surface to surface comparison? That's the point of making one stockpile surface with the toe as a base versus two stockpile surfaces that has a toe that follows the boundary.

I think this is a real oversight in the program, unless there is something bigger picture here that I'm missing. It's a whole extra step to get a result that you intuitively think you're getting in the first place.