We have a good size channel and the section for the channel varies quite a bit. We want to find the volume excavated in the channel between 2 elevations (it is the area of sand per the goetech report), see attached. Is there an easy way to do this? A template was not used to create the channel surface, breaklines and gradings were used.
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neilyj (No connection with Autodesk other than using the products in the real world)
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neilyj (No connection with Autodesk other than using the products in the real world)
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Use a Corridor.
300 = Datum surface, 310 = FG surface and compute volumes. Use flat daylight slopes or extract the 300 and 310 contours to be used as outer Targets.
Create plane surfaces that extend beyound your channel at elevation 310 and 300.
Paste FG surface to 310 surface (FG/310 compiled)
Create TIN volume surface with the FG/310 compiled as the base surface and the 300 plane as the comparison surface
Voila.
EDIT: ALL WRONG. SEE NEXT POST
Sorry Martin. I messed that up.
Try this.
Create plane surfaces as previously suggested.
Create TIN volume surface "1" from FG and 310
Create TIN volume surface "2" from FG and 300
Volume of sand = Volume from "1" - Volume from "2"
Mark Green
Working on Civil 3D in Canada
Typically on longitudinal projects like channels and roads, the team wants to see volume info per station. Like this: