Agriculture Reference
In-Depth Information
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Showing
Fi
Cut
Uphi
Figure 15.2-a
Contours 101 through 107 have been repo-
sitioned uphill, thereby creating a cut slope
Figure 15.2-B
Contours 101 through 107 have been repo-
sitioned downhill, thereby creating a fill slope
introduction to eStimatinG
earth-movinG quantitieS
The work done by a contractor for site grading—referred to as earth-
work in technical specifications and contract documents—can repre-
sent a substantial proportion of a construction budget. For example,
earthwork would represent the major expense of a construction budget
for constructing a set of soccer fields or other sport facilities, including
a golf course. In order to estimate the cost for earthwork, several cal-
culations are required to determine the amount of cut and fill required
to implement the grading plan. There are several commonly used
methods for calculating the volume of cut and fill, representing varying
degrees of accuracy and amounts of time required to make the calcula-
tions. Many offices use AutoCAD, Land CAD, and other computer soft-
ware to prepare their grading plans. Most software applications have
an earthwork calculation function that makes determining the amount
of earthwork fairly easy as one becomes proficient with the software.
In this chapter we will consider a graphic means for estimating cut
and fill. With practice accuracy will increase, as will speed.
