topic Re: Comparison of Corridor top surfarce | Datum Surface | Existing Ground in Civil 3D Forum

Comparison of Corridor top surfarce | Datum Surface | Existing Ground

kuguzevu — Thu, 12 Aug 2021 02:24:00 GMT

Hi Guys,

Please, which comparison is best for presentation for the client (s)?

Is it the comparison between the existing ground surface and Corridor top surface, which gives the cut and fill required to shape the terrain?

Or, is it the comparison between the existing ground and corridor datum surface, which gives you the box cut earth worth |volume statistics for cut and fill?

Re: Comparison of Corridor top surfarce | Datum Surface | Existing Ground

fcernst — Thu, 12 Aug 2021 02:32:22 GMT

Earthwork is defined as a comparison between the Corridor Datum surface and the Stripped EG surface.

Re: Comparison of Corridor top surfarce | Datum Surface | Existing Ground

kuguzevu — Thu, 12 Aug 2021 02:45:07 GMT

Thanks for the response.

I am basically referring to road design, so the stripped EG surface means the existing EG surface.

Re: Comparison of Corridor top surfarce | Datum Surface | Existing Ground

Jeew-m — Thu, 12 Aug 2021 08:32:02 GMT

Always cut and fill volumes will be calculated with comparing datum surface and EG. Instead of EG you may use stripped EG as well.

Re: Comparison of Corridor top surfarce | Datum Surface | Existing Ground

kuguzevu — Thu, 12 Aug 2021 12:17:56 GMT

Thanks

Re: Comparison of Corridor top surfarce | Datum Surface | Existing Ground

fcernst — Thu, 12 Aug 2021 14:25:04 GMT

..will be calculated with comparing datum surface and EG... Instead of EG you may use stripped EG as well..

The statement is not accurate.

"EG" alone by itself, delivered by survey, typically consists of a layer of topsoil which is not to be included in Earthwork calculations.