Technical information

80 | Chapter 4 Working with Surfaces
To calculate volumes
Steps
Use to locate
1 Define at least two surfaces, such as existing ground and
proposed ground.
Building a Surface
2 From the Terrain menu, choose Select Current Stratum to
create a stratum that defines the two surfaces that you
compare.
Defining a Stratum
3 From the Terrain menu choose Site Definition
➤ Define
Site to define the site area.
A site is essentially a rectangular area in which all volume
calculations are performed. It also defines the grid size
that is used when creating a grid surface.
Defining a Site for Volume
Calculations
4 To calculate volumes using the section method, select
Terrain
➤ Section Volumes ➤ Sample Sections to generate
the cross section data.
Sampling Section Data for
Volume Calculations
5 Calculate cut/fill volumes for the site. Volumes are
calculated based on the method that you choose.
■ To use the grid method, select Terrain ➤ Grid
Volumes
➤ Calculate Total Site Volume.
■ To use the composite method, select
Terrain
➤ Composite Volumes ➤ Calculate Total
Site Volume.
■ To use the section method, select Terrain ➤ Section
Volumes
➤ Calculate Volume Total.
Calculating Total Site
Volumes Using the Grid
Method
Calculating Total Site
Volumes Using the
Composite Method
Calculating Total Site
Volumes Using the Section
Method