How to calculate AREA of cut and fill between alignment and surface profile

[s3369821]

Hi all,

I was wondering if anyone knows how to calculate the AREA of cut and fill analogous to the volume of cut and fill between surfaces, but instead only between the alignment and the road profile in the prolfile view. From what I've read of similar posts a few people have had the same question but have been instructed how to do it with volumes as opposed to area. Also how to insert a table of cut and fill area analogous to the one you can inset from the volumes dashboard.

Cheers

[s3369821]

I am aware how to do the hatching for cut and fill and have tried to find the areas by exploding the road profile and surface profile objects and using hatching and then areas to find it like that, but it's quite cumbersome, and would like one that perhaps updates as the alighment changes.

[neilyj666]

I'm curious as to what this would be useful for?

[sboon]

I've done this occasionally to get the face area of a retaining wall, but I can't see how it would be useful for earthworks unless the cross section was relatively uniform along the length of the profile.

Steve
Please use the Accept as Solution or Kudo buttons when appropriate

[cbaildon001]

It is useful for working out the average river bed level from profiles of surveyed river cross-sections and change in average bed level between subsequent surveys (Area ÷ length). Average bed level is important in determining flood levels.

A function to give areas and average levels between specified chainages would be useful.

[s3369821]

I'm trying it as opposed to the rigmarole of setting up a surface and sample lines etc for the profile as unit width and finding the volume/area that way. It's only for preliminary design quantities for 3 or 4 alternatives where I'm trying to minimise/balance cut and fill, so section/surface uniformity isn't important. In any case surface levels aren't that accurate normally anyway due to the nature of contours.

I see it as a useful way to estimate these quantities in only 4 or 5 steps as opposed to dozens more that tend to be a bit touchy to set up. That and the surfaces rebuild takes a bit of computing power and hangs my pc when I edit the profile or alignment.