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Calculation of Volumes enclosed between more than two surfaces

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Message 1 of 6
venkatsurati
779 Views, 5 Replies

Calculation of Volumes enclosed between more than two surfaces

I want to calculate volumes enclosed between more than two surfaces ( i.e datum surface is composed by single Surface and bottom or EGL is composed of more than one surface layer).

Same thing is described in following attachment with Schematic diagram.

Please suggest us how to calcualte volume using AutoCAD Civil 3D Platform.

Regards,

VENKAT.S
5 REPLIES 5
Message 2 of 6
Anonymous
in reply to: venkatsurati

Hi venkatsurati,


Civil 3D does volume between surface computations between two surfaces
(and only two surfaces in each one) by creating a volume surface.

Draw your self a sketch of how you multiple surfaces interact and create
multiple volume surfaces, then hand compute the result you need by
adding and subtracting the volumes reported by Civil 3D.

Regards,


Laurie Comerford


venkatsuratiwrote:
> I want to calculate volumes enclosed between more than two surfaces (
> i.e datum surface is composed by single Surface and bottom or EGL is
> composed of more than one surface layer). Same thing is described in
> following attachment with Schematic diagram. Please suggest us how to
> calcualte volume using AutoCAD Civil 3D Platform. Regards, VENKAT.S
Message 3 of 6
morganproven8200
in reply to: Anonymous

This is the exact same problem I've having right now, but if the answer provided is a solution, I don't understand it.
Does anyone have any thoughts?

I've attached a diagram of what I'm trying to compute.  I have 3 surfaces.  The green one is an existing dike, the red is the proposed dike, and the brown is a layer of stone armouring.  I'm trying to calculate the volume between all 3... the area with orange hatching.

Message 4 of 6
mathewkol
in reply to: venkatsurati

These volumes can be calculated using an alignment complete with sample lines. It's a little tricky as you will have to specify "Bleow" this surface and "Above" the other 2 or 3 surfaces. It's not too tough.
Matt Kolberg
SolidCAD Professional Services
http://www.solidcad.ca /
Message 5 of 6

  • Create a new surface
  • Paste the GREEN surface into it
  • Paste the RED surface into it
  • Create a volume surface
  • use the RED/GREEN surface as the base surface and the BROWN surface as the comparison surface.

Voila!

Brian J. Hailey, P.E.



GEI Consultants
My Civil 3D Blog

Message 6 of 6

The above worked perfectly.  Thank you!!

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