AutoCAD Civil 3D General Discussion

AutoCAD Civil 3D General Discussion

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Active Contributor
eyescast
Posts: 37
Registered: ‎07-09-2011
Message 1 of 5 (442 Views)

Grading filling in embankment

442 Views, 4 Replies
12-20-2012 04:28 PM

Hi
1do I create feature lines at toe , then vertical between the toe and the cliff , then use the grading & elev.editor
2 Once I obtain the infill surface l, how rotate or orient the model w/ rocks so this photo 3
is draped over it.?.
TY

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Joe-Bouza
Posts: 4,884
Registered: ‎12-15-2008
Message 2 of 5 (428 Views)

Re: Grading filling in embankment

12-20-2012 05:04 PM in reply to: eyescast

eyescast wrote:

Hi
1do I create feature lines at toe , then vertical between the toe and the cliff , then use the grading & elev.editor
2 Once I obtain the infill surface l, how rotate or orient the model w/ rocks so this photo 3
is draped over it.?.
TY


Not too sure I understand your prose are you asking how to grade or how to get an image ine you drawing?

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
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Active Contributor
eyescast
Posts: 37
Registered: ‎07-09-2011
Message 3 of 5 (371 Views)

Re: Grading filling in embankment

01-15-2013 06:07 PM in reply to: eyescast
Hi again, The forum give me an error message of limiting it 80 characters......sorry about that. 1. Is the best way to create the design surface is by creating a feature lines and then creating grading objects? Is this is the only way? If that is so, how do i create a FILL grading group for an eroded embankment of a reservoir. The examples on a typical book eg."master civil 3d 2012" shows a pond design. I started a polyline boundary area just a bit smaller than cogo points consists of - surveypoints shot on the edge on the cliff, shot midway to wall of the cliff and shots taken to where the toe of rip rap fill-boundary should be. After that , i added points with elevations which represent whats on the site. (See image) . is this correct? on the base feature boundary, do i just tell what lenght of the boundary line it must be graded from the top of the cliff, 1:2 slope ? And when I get to the portion of the base feature bounary line at the toe , I just tell what lenght of the boundary line it must be with a slope of 1:1.5 2. This I'm about to try to model the the design surface a different way. (from the cliff 1:2, it goes this way for 5 ft, changes to 1:1.5) do I create feature lines at toe , then vertical feature line between the toe and the cliff , then use the grading editor or elevation editor 3. Once I obtain the infill surface of the fill, how rotate or orient the model , ( rock material - rendered) so this photo 2 is draped over it.? Thanks again. Sincerely, Joseph R Cruz Water Resources Engineer SOUTHERN FIELD DIVISION State of California Department of Water Resources Southern Field Division 34534 116th Street East P.O. Box 1187 Pearblossom, CA 903553 661.944.8567 Off. 661.805.0210 Cell 661.944.8576 Fax jcruz@water.ca.gov [cid:image003.png@01CBD335.00047290]
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sboon
Posts: 2,109
Registered: ‎11-08-2005
Message 4 of 5 (358 Views)

Re: Grading filling in embankment

01-15-2013 09:26 PM in reply to: eyescast

I'm having difficulty reading through your post and isolating all of the separate questions that you're asking.  Let's see if I can clear up one or two of them at least.

Is the best way to create the design surface is by creating a feature lines and then creating grading objects? Is this is the only way? If that is so, how do i create a FILL grading group for an eroded embankment of a reservoir.

For this situation it sounds like a grading object would be appropriate at least to start from.  The problem you may run into is that a grading always projects perpendicular to its baseline.  If you're starting from the top of the collapsed bank then it looks like you don't have a straight line to work from.  If you have a slope break in the middle of the design then you may be able to project in both directions from there.

Once I obtain the infill surface of the fill, how rotate or orient the model , ( rock material - rendered) so this photo 2 is draped over it.?

Insert your photo into the drawing.  Move and scale it so that it covers the extents of your surface.  Use the Drape Image tool to render the image onto the surface.  You'll have to use a surface style that displays triangles and switch the visual style to Realistic to see the photo.

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autoMick
Posts: 248
Registered: ‎07-19-2012
Message 5 of 5 (333 Views)

Re: Grading filling in embankment

01-16-2013 03:08 AM in reply to: eyescast

Maybe you could create your design surface just by a series of feature lines representing your grade break points. Add these feature lines to a surface (as contours or breaklines I think will work). Are you trying to determine the volume of fill required, or just simply draw the design surface? will you be modify the existing terrain or just filling the gaps?

A sketch of a cross section would help.

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