I am trying to create in my sub assembly a daylight with a variable slope to a graded ditch then it backslopes to natural ground. (image attached). How can I do this in Civil 3d 2012?
Thanks a merry Christmas to all 🙂
Wylde
yeah, that's where the problem is, I have no clue how. Very new at Civil 3d
@WyldeParnelle wrote:yeah, that's where the problem is, I have no clue how. Very new at Civil 3d
There are lots of tutorials on using SAC that will teach the hows. But the one part that I had to pretty much figure out on my own was how to correlate all the codes to the CODESET within the corridor definition.
Take a look at this thread -- hopefully it'll help you with that part. My boss asked me to write something up and I posted part of it here wanting to have it reviewed for accuracy.
Don Ireland
Engineering Design Technician
You don't need to use SAC if you don't want to on this problem.
You can do this with the stock Conditional subassemblies. Since you're new I would suggest studying up on their functionality.
Fred is correct, the Conditional CutFill subassembly can be used, but he did not mention how one might do it. The Conditional CutFill uses a target surface, so it can't be used with your ground surface since your foreslope criteria is based on ditch depth below the attachment point. It's a little tricky, at least the way I have come up with.
You need a surface which represents the elevation of your ditch bottom and this surface is flat from left to right when viewed in a corridor section (see the lower red line in the image below). The foreslope conditinoals use this as a target. The backslope conditionals use the ground surface as a target.
Since you have 6 if/then statements, you need 6 conditionals; 3 for the foreslope and 3 for the backslope.
I have attached a drawing that does what I think you need.
can hardly wait to get to the office Monday to try these out, thanks guys. I wish I had Civil 3d at home, I have a subscription for Inventor Suite Premium (because that's my experience for many years) Civil is new to me. I understand the logic but getting there is a challenge. I never back down from a challenge :).
This Assembly that is offered will not work for the ditch backfill condition. Ditch depth is to be measured as the vertical differential from Daylight catch point to ditch invert.
This will be a good exercise for you to work with, and now you have start.
It will only be accurate if EG is dead flat.
Obviously.
I suggest to the young OP to search for posts from Steve Boon, David Zavislan and Peter Funk, demonstrating the concept of using Generic links for testing conditions and Omitting links, combined with the innate ability of Assemblies to remember the relative translation movements instilled by the designer of the Assembly's various subassemblies during Assembly creation.