Earthworks Volume Computations
|Earthworks volume computations between
digital terrain model (DTM) surfaces,
generate surface intersections, common boundaries and create height difference
| How Much Material is Left?
The answer is easy with the LISCAD Volumes module.
a volume to a base plane
by selecting a digital terrain model (DTM) and a nominated datum elevation. Alternatively, calculate the volume between multiple progressive base planes
which is useful for dam capacities and progressive payments.
Using two digital terrain model surfaces, calculate
the volume of cut and fill, create a new height difference model,
cut" / "no fill" breaklines as well as common boundary lines.
New points and lines defining the "no cut" / "no fill"
areas can be added to
a user specified group/layer for subsequent output to
field surveying devices or software systems such as
AutoCAD (DWG), MicroStation (DGN) and LandXML.
height differences are required for reporting or
stakeout on civil engineering design projects, the LISCAD
Volumes module can automatically create a new project
which contains all lines of intersection and boundary
overlap, plus breakline and DTM
The elevations generated in this new data set are the
actual differences in height between the two selected
digital terrain models.
A DTM can be created from this new
project, providing height difference contours which can
be colour coded to readily illustrate areas above and
below the design surface.
Likewise any of the new points can be uploaded to total
station, data logger and GPS land surveying devices and
used in the field to control earthworks.