Topsoil stripping is easy to complete in Kubla Cubed using the strip element. Different strip elements can be used to define areas with different strip depths. Usually the side batter is kept at a very steep angle or turned off when defining strip areas.
The most important thing to remember is to always have the stripping calculation completed in its own phase, and to have the bulk earthworks elevations defined in a subsequent phase. The reason for this is because on a proposed phase there is only one ground surface and one proposed surface. A comparison between the two provides the cut & fill results. With a topsoil strip we actually need three surfaces: existing ground, stripped levels and subgrade\formation levels. For this reason, we need to utilise the construction phase capabilities of Kubla Cubed to complete the multiple steps of the calculation. A new construction phase takes the proposed levels of the previous phase as the ground so in this case a new phase will calculate from the stripped levels rather than the ground levels which is exactly what we want. The same is true for backfilling or any project that requires comparison between multiple surfaces.
Notes on Intersecting Strips : Strip elements whose boundaries intersect are additive. This means that if a 1m strip intersected with a 2m strip the area of intersection would result in a 1m strip. It is recommended that point snapping is used at the same time as turning side batter off to design adjacent strip areas.
|
Topsoil Stripping looks at using the strip element to complete topsoil stripping operations and explains the importance of always having the strip depths defined on a different phase to subsequent earthwork elevations. |