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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