Join Josh Modglin for an in-depth discussion in this video Volume surfaces, part of AutoCAD Civil 3D Essential Training.
- [Instructor] If you have two or more surfaces in a drawing, you can create a volume surface. A volume surface is able to gather information and analyze the volume between one base surface and another comparison surface. Let's go ahead and create a volume surface. Open up the drawing VolumeSurface. And the drawing looks blank, but if we go to our Prospector in Surfaces we see there's actually two surfaces in the drawing.
So although the surfaces aren't being displayed, their information is there. We're going to go to our home ribbon under Create Ground Data, and we're going to go ahead and create a surface. Now we've always immediately gone to name the surface, but in this case, we're going to choose the type of surface we're going to create. And we're going to create a 10 volume surface. A 10 volume surface is created by creating those triangles, getting the points.
The points are wherever the two triangles of the two surfaces cross. So you have triangles for the base surface, triangles for the comparison surface. Wherever they cross, there is a point. The Z elevation for that point is simply the difference between the two surfaces. We're going to name, of course, this surface volume, and in this case, the style is not the style we want. So we're going to change from the default style, and we're going to set it to the Elevation Banding style.
I click okay. The base surface usually is going to be the existing grade, and compare one proposed surface versus another. We can compare sub-base versus a finish grade. A lot of different ways we can approach it. Our comparison surface is going to be our pond or our finished grade. We can even control the cut and fill factors. Think shrinkage and swelling of our soils. We can enter those factors here as well. We click okay.
And there we have the end result is a new surface, and because we used the elevation banding, it's providing colorations showing the different elevations of our volume, but if we right click on our Volume Surface in Prospector, you see the different icon for it, choose Surface Properties under Statistics, you have the volume and it provides the information whether we entered a shrinkage and swell factor, it would provide the adjusted values, total net, and then the unadjusted as well.
And so it looks like there's a little bit too much cut for this surface. Very easy to quickly check then, and this is dynamically connected to the two surfaces provided for our volume surface. So if existing grade surface changed, our comparison grade surface changed, this surface would automatically rebuild if it was set to do so, and we'd automatically get new adjusted volumes. Very powerful way to analyze our volume or earthwork.
This course gets you up and running with AutoCAD Civil 3D. First, instructor Josh Modglin shows how to model a surface, lay out parcels, and design geometry, including the making of horizontal alignments and vertical profiles. Next, Josh demonstrates how to create corridors, cross sections, pipe networks, and pressure networks. Then, he covers working with feature lines and grading objects, and how to share your data. He wraps up by providing an overview of plan production tools.
- Navigating the Civil 3D interface
- Using point groups and description keys
- Importing survey data
- Managing figures
- Creating and analyzing surfaces
- Creating parcels
- Working with alignments
- Working with profiles and profile views
- Working with assemblies and subassemblies
- Creating Basic and Advanced Corridors
- Using an Intersection Object
- Making sample lines, cross sections, and section views
- Creating a pipe network
- Understanding pressure parts
- Creating and editing feature lines
- Creating and editing grading objects
- Sharing and referencing data
Skill Level Beginner
Some of the exercise files do not properly function.
This course was built to work with the latest release of AutoCAD Civil 3D. If you are not running AutoCAD Civil 3D 2018 there are some exercise files that will not work for you.
AutoCAD Civil 3D: Designing Residential Projectswith Eric Chappell3h 11m Intermediate
AutoCAD Civil 3D: Designing Gravity Pipe Systemswith Eric Chappell3h 33m Intermediate
1. What Is Civil 3D?
What is Civil 3D?4m 43s
2. Civil 3D Interface
3. Establishing Existing Conditions
4. Modeling a Surface
5. Layout of Parcels
6. Design Horizontal Geometry: Alignments
7. Designing Vertical Geometry: Profiles
8. Civil 3D Corridors
10. Gravity Pipe Networks
11. Pressure Part Networks
12. Feature Lines
13. Grading Objects
14. Share Your Data
15. Plan Production Tools
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.