A presentation on

CONSTURCTION EQUIPMENT

BY B.MAHESHBABU

CONTENTS :-

CONSTURCTION EQUIPMENT

ECONOMICAL CONSIDERATIONS

EARTHWORK EQUIPMENT

HANDLING EQUIPMENT

COMPACTION EQUIPMENT - TYPES OF COMPACTION ROLLERS

MACHINES MAKE IT POSSIBLE In the case of huge construction projects

to speed of the construction Proper use of the appropriate equipemnt

contributes to the economy ,quality,speed and timely completion of the project

Equipments used in civil engineering branches like ,highway,irrigation,structural etc..

15-30% of total cost has been accounted for the machinery

CLASSIFICATION OF CONSTRUCTION EQUIPMENT Earth moving equipment Hauling equipment Hoisting equipment Conveying equipment Aggregate and concrete production

equipment Pile driving equipment Rock drilling equipment Dewatering equipment

EARTH MOVING EQUIPMENTS :- POWER SHOVEL, BACK HOE, DOZER,SCRAPERS ,GRADRES

HAULING EQUIPMENT : TRUCKS,SEMI TRALIES

HOISTING EQUIPMENT : MOBILE CRANES,JACKS,TOWER CRANES,WHRILER CRANES,DERRICK CRANES

AGGREGATE AND CONCRETING EQUIPMENT : CRUSHERS, GYRATORY CRUSHERS,IMPACT CRUSHERS, MIXERS AND BATCHING EQUIPMENT Etc..

PILE DRIVING : PILE EXCAVTORS ,PILE DRIVERS

ROCK DRILLING : DRILLERS With different

capacities

DEWATERING : VACCUM FILTERS,SLUDGE LAGGONS ,DRYING BEDS ,FILTERS PRESSES

OPERATIONS INVOLVED IN CONSTRUCTION Excavation Digging of large quantities of earth work Hauling Placement Compaction Dozing Grading Placing of concrte

EARTHWORK EQUIPMENT POWER SHOVEL BACKHOE BULL DOZERS ROLLERS DUMP TRCUKS

POWER SHOVEL

POWER SHOVEL To excavate the earth and to load the

trucks Capable of excavating all types of earth

work except hard rock Size varies from 0.375 cu.m to 5 cu.m Basic parts of the shovel are track

system,cabin,cables ,rack, boom, boom point sheaves .

For excavating blasted rocks, large size dipper will easily handle bigger sizes.

Capable of digging very hard materials Can remove big sized boulders It is used in various jobs such as digging in

gravel banks, clay pits ,digging cuts,road side berms

FACTORS AFFECTING THE OUTPUT OF SHOVEL Class of material Depth of cutting Angle of swing Job condition Management condition Size of hauling equipment Skill of the operator Physical condition of the shovel

BACK HOE(LOADER)

BACK HOE Also known as back shovel and pull

shovel It is used to excavate below the natural

surface on which it rests Generally used to excavate

trenches ,pits for basements and also grading ,precise control of depths

The basic parts are boom, stick, bucket and bucket drum, cabin etc..

Backhoe loaders are very common and can be used for a wide variety of tasks :

construction, small demolitions, light transportation of Building materials , powering building equipment, digging holes, landscaping, breaking asphalt, and paving roads. Often, the backhoe bucket can also be replaced with powered attachments such as a breaker, grapple, auger

It is most suitable for trenches ,footings and basements,etc..

It can be efficiently trim the surface avoiding the use of manual effort for dressing the excavated surfaces

BULL DOZER

The heavy blade attached to tractor pushes the material from one place to another place

The tractor can be wheeled type or crawler type

For spreading the earth fill For opening the pilot roads thorough

mountainous and rocky terrains

Mainting and removing dirt and dust on highway roads

Clearing land from the trees and stumps Back filling trenches at sites dragging the

earth from one place to another Clearing construction sites

COMPACTION EQUIPMENT

is the process in which a stress applied to a soil causes densification as air is displaced from the pores between the soil grains. 

EQUIPMENT Smooth wheel rollers Sheep-foot rollers Pneumatic type rollers

SMOOTH WHEEL ROLLER

It also known plain roller Weighing from 5 to 15 tones Used for ordinary rolling work where

deep compaction is not required These rollers may have one front and

two rear wheels The rear wheels being usually larger in

diameter

SHEEP FOOT ROLLERS

For compacting earth work in embankments and canals where deep compaction into the layer of the earth is required

These gives the best results in compaction The sheep-foot rollers weigh more than 15

tones Travel at a speed of 25kmph Kneading action compacts bottom to top layer These rollers are effective in compacting

granular soils such as sand ,gravel and gravel stones

Self propelled type

PNEUMATIC TYRED ROLLERS

It consists of base or platform mounted between the two axles

The rear of which has one more wheel than the front

Most suitable for fine grained soils and well graded sands

Majorly used in asphalt roads

HAULING EQUPIMENT The equipment used for the

transportation of materials are known as hauling equipment

Haulers may operate on roadways or railways

It involve : Transportation of building materials

B)carriage and disposal of earthwork C) haulage of heavy equipment

CLASSIFICATION

They are classified on the basis of method of dumping the load

a) dump trucks i) side trucks ii)bottom dump trucks B) Dumpers

DUMP TRUCKS These are used for the earth moving purpose The selection of the type of dump trucks for

a specific job depend on the job condition Side trucks : these are heavy duty trucks

with strongly built body which is hinged on the truck chassis at the rear end and one side respectively, and can be fitted to the rear in the case of rear dump and to the hinged side in case of the side dump, through the action of hydraulic jacks

These trucks are suitable for use in hauling wet clay, sand, gravel, quarry rocks

BOTTOM DUMP TRUCKSThese are similar to semi-trailers in which their front

is supported on the rear of the hauling tractor and their rear is resting on their own wheels.

• The body of the truck remains in the same position and the discharge of the material takes place through its bottom after opening of two longitudinal gates.

• The gates are hinged to the side of the body.

• These trucks are suitable for use in hauling free flowing material, such as, sand, gravel, dry earth, hard clay etc.

DUMPERS Dumpers : High speed pneumatic wheeled trucks Short chassis Strong bodies Loading, hauling and dumping is done

very fast as compared to other equipment

Suitable for short hauls on rough roads Specially where a shuttle movement is

required

THANK YOU