Cut & Fill Calculations - Expansion Ratio

[Poot]

Hi everyone,

I am wondering if there is a feature to add the expansion ratio into cut/fill calculations, for areas where the 'cuts' are blasted out from solid rock, and thus have an expansion ratio greater than 1:1 .  In this case, blasting 1m³ of solid granite does not produce 1m³ of blasted rock, but more since that has now been blown to pieces with lots of gaps between them.  

 

Civil 3D has this function, but I was hoping there is also some similar feature in vectorworks?

 

Thanks for any tips.

[Tamsin Slatter]

I would recommend that you do this in a worksheet - report on the cut and fill, and then use a formula to increase the bulking ratio as appropriate to the site.