AutoCAD Civil 3D General Discussion

AutoCAD Civil 3D General Discussion

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Happyunited123
Posts: 147
Registered: ‎03-12-2011
Message 1 of 5 (1,162 Views)
Accepted Solution

Embankment/Daylight Query

1162 Views, 4 Replies
10-01-2013 01:44 AM

Hi,

 

I'm building up my assembly and I want to add a daylight sub-assembly in order to grade my proposed surface to the existing surface. Typically I would have a 1:3 slope up or down. I have choosen the DaylightGeneral for this and although there is quite a few parameters to play with, I'm only interested in the up/down slope but when I put anything sleeper than 1:4 it doesnt work, I get this red line and circle. Can anyone tell me why?

 

Thanks in advance.

 

1in3.JPG1in6.JPG

Daylight general has 3 cut situations and 3 fill situations. the flat fill slope can't be steeper than the steep fill slope. If you do this i think it will give you the situation your talking about. so if you want 1:4 steep slope put in 1:5 med slope and 1:6 flat slope.
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dgordon
Posts: 1,474
Registered: ‎12-14-2006
Message 2 of 5 (1,151 Views)

Re: Embankment/Daylight Query

10-01-2013 04:23 AM in reply to: Happyunited123
Daylight general has 3 cut situations and 3 fill situations. the flat fill slope can't be steeper than the steep fill slope. If you do this i think it will give you the situation your talking about. so if you want 1:4 steep slope put in 1:5 med slope and 1:6 flat slope.
Dan

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sboon
Posts: 2,225
Registered: ‎11-08-2005
Message 3 of 5 (1,130 Views)

Re: Embankment/Daylight Query

10-01-2013 08:57 AM in reply to: dgordon

Dan has it right.  DaylightGeneral also has height limits for the test of flat slopes vs. medium or steep slopes.  You need to make sure that the flat limit < medium limit < the steep limits.

 

Steve
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david.zavislan
Posts: 281
Registered: ‎10-31-2006
Message 4 of 5 (1,103 Views)

Re: Embankment/Daylight Query

10-02-2013 08:45 AM in reply to: Happyunited123

I find that the DaylightGeneral subassembly is not very general.  For simple models, with single cut and fill slopes, I use the DaylightMaxWidth.  It has fewer properties, which makes it easier to use.  Just make sure to specify a maximum width value that will not constrain the slope.

David Zavislan, P.E. | Wood Rodgers, Inc.
Distinguished Contributor
Happyunited123
Posts: 147
Registered: ‎03-12-2011
Message 5 of 5 (1,066 Views)

Re: Embankment/Daylight Query

10-08-2013 07:33 AM in reply to: david.zavislan

Thank you all for the answer, worked a treat.

 

I do however agree that the daylightgeneral is a bit complicated for something 'general'.

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