Scribd
Upload
30 views9 pages

WW

The document discusses earthworks, which involve moving and processing large quantities of soil or rock to reconfigure site topography for various engineering projects such as roads, railways, and irrigation systems. It explains the processes of cutting and filling to achieve desired topography and introduces the prismoidal formula for estimating the volume of irregular shapes. An example is provided to illustrate the application of the prismoidal formula in calculating the volume of earth removed from a construction site.

Uploaded by

yuki
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
30 views9 pages

WW

The document discusses earthworks, which involve moving and processing large quantities of soil or rock to reconfigure site topography for various engineering projects such as roads, railways, and irrigation systems. It explains the processes of cutting and filling to achieve desired topography and introduces the prismoidal formula for estimating the volume of irregular shapes. An example is provided to illustrate the application of the prismoidal formula in calculating the volume of earth removed from a construction site.

Uploaded by

yuki
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 9

25/11/2019

1
25/11/2019

2
25/11/2019

3
25/11/2019

4
25/11/2019

Unsymmetrical Parabolic Curves

5
25/11/2019

6
25/11/2019

7
25/11/2019

Earthworks are engineering works created through the Applications of Earthwork


moving and/or processing of massive quantities of soil or
Typically, earthwork is done in the following projects:
unformed rock. Road works
Railways
Earthwork is done to reconfigure the topography of a site to Irrigation project such as canals and dams
achieve the design levels. Other common earthwork applications are land grading to reconfigure
the topography of a site, or to stabilize slopes
Earthwork involves cutting and filling to achieve the required
topography.

Cutting
Cutting is the process of excavating earth material from a work
location to achieve the desired topography.
Filling
Filling is the process of moving the excavated material or additional
earth material to a work location to achieve the desired topography.

Prismoidal formula is accurate in finding the volume of


prisms, pyramids, wedges, and prismoids having irregular
end sections. The estimation of earthwork gives nearly an
accurate volume.

8
25/11/2019

In a certain building operation,


it was necessary to remove a
portion of a hill which was
approximately in the shape
shown in the sketch. Lower
base is a rectangle; upper base
is a right triangle. AB is parallel
to DE; and AC is parallel to
DG. All face angles at A and at
D are right angles. Altitude of
solid is AD=240 ft.; other
dimensions are shown in the
sketch. Find the amount of
earth removed using prismoidal
formula.

You might also like