TOPIC:- EXCAVATING EQUIPMENT'S

SUBJECT:- ACE (2160602)

PREPARED BY SUJITH VELLOOR S

LECTURER

CIVIL ENGG DEPT (ECT)

Gujarat Technological University

POWER SHOVEL

Power Shovel are used

primarily to excavate

earth and load into

tractor or truck

Size of shovel is

indicated by size of

dipper expressed in

cubic meters(0.5 to 5

cubic meters).

BASICS PARTS AND OPERATION

TYPES OF POWER SHOVEL

•1. Crawler mounted:- It is mounted on crawler and

it posses low travel speed. It can be operated on

soft ground

•2. Wheel mounted:- It may be self-propelled or

truck mounted. It posses high speed and it is

suitable for hard surface

OUTPUT OF POWER SHOVEL

•1.Class of material

•2.Height of cut

•3.Angle of swing

•4.Operating Skill

•5.Management Condition

6. Job Condition

7. Size of hauling unit

8. Physical Condition

9. Haul Exchange

10. Clean up of loading area

DRAGLINEThe dragline is operation

of dragging the bucket

against the material to be

dug.

A dragline can dig and

dump over larger distance

than shovel can do.

Its Capacity of is in cubic

meters.

OPERATIONS OF DRAGLINE

FACTORS AFFECTING OUTPUT OF DRAGLINE

• Size and type of buckets. (Light bucket, Medium bucket & Heavy bucket)

• Length of boom ( 50ft, 60ft & 70ft)

• Type of material (Loose, dry & soft materials)

• Angle of swing (Horizontal angle measured in degree) (90degree)

• Depth of cut (0.29m3 to 3.1m3)

•Working Condition (large open space)

• Size of Hauling ( trucks desired size to avoid delay)

• Skilled operator (experienced person)

TYPES OF DRAGLINE

•Crawler mounted:- low speed

Soft ground

•Wheel mounted:- High speed

Paved ground

•Truck mounted:- High speed

Paved ground

BACK HOES

Excavating machine

of power shovel

group

It is termed as hoe,

back hoe & pull

shovel.

BASIC PARTS

• Boom

• Jack boom

• Boom foot drum

• Bucket and bucket sheave.

FACTORS AFFECTING HOES

• The output is about same as that of power shovel of same size and

digging in same class material

• Depth is increased output of hoe will decrease

•Greater output is obtained when digging is done near the machine

• Depth of cut is depends on type of materials, size and type of

bucket

SELECTION OF HOES

•Maximum excavation depth required

•Maximum working radius required for digging and dumping

•Maximum dumping height required

• Hoisting capability required

CLAM SHELLS

• The name of machine

is derived from shape

of its bucket that of

shell fish with hinged

double shell, which

can be opened into

two parts.

BUCKET

• Selection of bucket depends on

requirements of job.

• It consists of two shells or halves which

are hinged at top and provided with

sharp edge at lower end.

• Types:- Light bucket, medium bucket &

heavy bucket.

• Bucket capacity is 0.38m3 to 3.06m3

EFFECTIVE USE OF CLAM SHELL

• Unit should be placed on level ground

• Bucket teeth should be sharp

• Distance of unit from digging and dumping place should be equal

•Working in soft material teeth of backet should be removed

TRENCHING MACHINES

• Trenching machines can excavate in all type of soil except rocks

APPLICATIONS

• Water, oil & gas pipe lines

• Sewers, where job condition are suitable for them

• Drainage ditches

• Telephone cables

TYPES1. WHEEL TYPE TRENCHING MACHINES

WHEEL TYPE TRENCHING MACHINES

• Excavating part of machine consists of power driven wheel, on

which are mounted a no of removable buckets

• Buckets are available in various size

• They can cut trench width of 30 to 150cm

•Maximum cutting depth is 2.5 to 3m

• They have digging speed 30m or more in any job

2. LADDER TYPE TRENCHING MACHINES

LADDER TYPE TRENCHING MACHINES

• Excavating parts of ladder type machine consists of two endless

chain which travel along the boom to which are attached cutter

buckets equipped with teeth

• It can cut maximum trench width up to 360cm

•Maximum cutting depth is 9 to 10m

• Digging speed is 30m or more for various job

3. VERTICAL BOOM TYPE TRENCHING MACHINES

VERTICAL BOOM TYPE TRENCHING MACHINES

• This machine is modification of ladder type machine

• It is available in 7 different boom size which allow trench width

from 40 to 70cm

Thank you

Best Wishes