How do I slope multiple flat platforms

How do I slope multiple flat platforms

Ntuthuko.
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How do I slope multiple flat platforms

Ntuthuko.
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After a long while of figuring things out, I have successfully created four cut-to-fill platforms as shown in the attached picture (I used 'Grade to Surface' for the outer boundary and 'Grade to Elevation' when grading from one platform to another). Now I want the platforms to have a slope of 1% for drainage purposes. How do I achieve this? For the banks between platforms the grading criteria 'Grade to Elevation' will no longer work since the target platform will no longer have a fixed elevation.

 

Please assist me with this. I have spent a large amount of time just getting this far and I can't seem to figure out how to proceed.

 

All assistance is highly appreciated.

 

Ntuthuko

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Message 2 of 4

wfberry
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Please note that this is not an answer and I cannot tell from your picture just how you arrived at it.

 

I can tell you that you should have started with the top "Rims" set for your 1% slope, then apply your grading.

 

Bill

 

Message 3 of 4

cwr-pae
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Accepted solution

Like Bill Berry I can't tell much from the image but;

 

Create a separate surface for each platform and grade to surface from upper plate forms to lower. Then paste the surfaces in to single finished surface. Note that the surfaces pasted latest override all surfaces pasted before. It is also possible to use the same feature lines in multiple surfaces.

 

You could also use the grade to elevation as long as it extends below the lower platform's top and control the termination by pasting order.

 

For the 1% cross slope,secondary feature lines in the same site can be used to connect 2 points on the perimeter feature line and a slope set to control the elevations.

Message 4 of 4

Ntuthuko.
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Thank you Bill and CWR, your responses helped me greatly.

CWR, I redid my earthworks following the steps you provided and I succeeded in a fraction of the time I had spent on this previously. You have been very helpful. Thanks a great deal!
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