shovel excavator
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SHOVEL
EXCAVATOR1
Submitted by:
Athulya.c.s
Roll No:14,
S7 , Civil
SHOVEL EXCAVATOR
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Track system
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•POWER SHOVEL EXCAVATORS
•BACK HOE SHOVEL EXCAVATOR
•FRONT SHOVEL EXCAVATOR
THREE TYPES...
POWER SHOVEL EXCAVATOR
Long-lasting and useful class of earth moving equipment
Capable of excavating all types of earth except hard rock
Size of power shovel varies from 0.375-1.05m3
It may be crawler mounted or wheel mounted shovels
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Crawler mounted shovel:
Low speed
Effective in unstable soil
Wheel mounted shovel:
Higher speed
Effective only in firm ground
Power shovel deponds on:
Class of material
Depth of cutting
Angle of swing
Job conditions
Management conditions
Size of hauling units
Skill of the operator
Physical condition of the shovel 7
Applications:
Suitable for close range work
Capable of digging very hard materials & remove big boulders
Used in digging in gravel banks , clay pits , digging cuts in road
works , road-side berms etc.
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BACK HOE SHOVEL EXCAVATOR
Also known as hoe , back shovel & pull shovel
Used to excavate below the natural surface on which it rests
Hoes used to excavate trenches , pits for basemants & grading works
Used to establish natural slopes
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In strom drain and utility work the hoe can perform the
trench excavation and can handle the pipe by eliminating
a second machine
There are special buckets for everything from light sand
to hard rock digging
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Parts of a back hoe excavator
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Applications:
Suitable for digging below the machine level
Effectively used to dress or trim the surface avoiding the use of
manual effort for dressing the excavated surface
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FRONT EXCAVATOR
Used predominately for hard digging above track level
and loading haul units
Loading of shot rock will be a typical application
Shovel is capable of developing a high break out force
The material being excavated should be such that it will
stand with a fairly vertical face
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FRONT SHOVEL EXCAVATOR
High excavation rate due to unique front shovel and side
tip operation
Prolec laser system enables excavation to a more
accurate level – resulting in quicker excavation rates
while reducing the chance of over-digging
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Improved track quality due to the excavation action
(pushing into spoil rather than pulling it back)
Fewer machine controllers on site meaning less risk and
safer operations
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Factors afecting shovel excavators are:
Class of material
Height of cut
Angle of swing
Size of houling units
Operator skill
Physical conditions of the shovel
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