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jon_b
Posts: 27
Registered: ‎02-04-2013
Message 1 of 7 (7,310 Views)
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Subassemblies at different slopes targeting each other

7310 Views, 6 Replies
11-15-2013 04:14 PM

I have a ditch and a road that need to follow separate profiles but be integrated with each other as a single corridor and the ditch's 3:1 slope needs to meet up with the road's 2% slope.  Is it possible to have the two subassembiles target each other without having to create a dummy surface or a feature line for targeting to?  Attached is a snapshot of the road and ditch configuration.

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Jay_B
Posts: 2,146
Registered: ‎09-15-2010
Message 2 of 7 (7,299 Views)

Re: Subassemblies at different slopes targeting each other

11-15-2013 04:43 PM in reply to: jon_b
Daylight Basin and Daylight Basin2 support profile or feature line targets and could be attached to to the edge of road / shoulder.
Then the extra Assembly marker wouldn't be needed as it would all be tied together in one single corridor. Look at the help for these 2 subassemblies.
Jay

C3D 2014 SP2
Win 7 Professional 64 Bit
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jon_b
Posts: 27
Registered: ‎02-04-2013
Message 3 of 7 (7,284 Views)

Re: Subassemblies at different slopes targeting each other

11-15-2013 05:27 PM in reply to: Jay_B

My ditch will be at a grade of ~0.15% with periodic drop structures at 10% to correct for changes in elevation, while the road is to be a minimum of ~1.2m above original ground, wouldn't the DaylightBasin subassembly adjust its horizontal location to meet the elevation target and introduce jogs?

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Jay_B
Posts: 2,146
Registered: ‎09-15-2010
Message 4 of 7 (7,270 Views)

Re: Subassemblies at different slopes targeting each other

11-15-2013 05:59 PM in reply to: jon_b
If I'm understanding, yes the toe of the ditch would move in and out from the edge of road due to the variation in ditch grade but I thought you were asking for a 3:1 slope, not a variable one. If you do use the DaylightBasin, it helps to specify a very small number for the depth when controlling ditch depth with a target. Otherwise some portions of sub won't tie etc. depending on the terrain.
Jay

C3D 2014 SP2
Win 7 Professional 64 Bit
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sboon
Posts: 2,075
Registered: ‎11-08-2005
Message 5 of 7 (7,221 Views)

Re: Subassemblies at different slopes targeting each other

11-15-2013 09:00 PM in reply to: jon_b

If you wanted to maintain the 3/1 ditch foreslope and the 2% shoulder slope, and allow the intersection point to move as the ditch profile changes then LinkSlopesBetweenPoints may be appropriate.  In this case the ditch width parameter would be zero.  Set a marked point at the edge of the lane then attach the sub to the inside edge of your ditch.

 

Steve
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jon_b
Posts: 27
Registered: ‎02-04-2013
Message 6 of 7 (7,156 Views)

Re: Subassemblies at different slopes targeting each other

11-18-2013 09:10 AM in reply to: sboon

Jay, I need to maintain the 3:1 slope for the ditch and 2% for the road.

 

Steve, that sounds like what I'm looking for. Will try it out this afternoon.

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jon_b
Posts: 27
Registered: ‎02-04-2013
Message 7 of 7 (7,139 Views)

Re: Subassemblies at different slopes targeting each other

11-18-2013 03:47 PM in reply to: jon_b

LinkSlopesBetweenPoints solved my problem, and a bit of searching led to a descriptive post and sample drawing on AUGI's forum.

 

http://forums.augi.com/showthread.php?131725-Help-with-assembly-problem

 

Thanks Steve, much appreciated!

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