construction safety in heavy euipments

8/11/2019 Construction Safety in Heavy Euipments

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By:

S B PRAKASH SADANALA

M.Tech Construction Engineering Management

MIT - MANIPAL


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Not inspecting, operating, and maintaining machineryaccording to the manufacturer

Operating defective machinery

Not reading and following all warning labels

Untrained or unauthorized operation

Potential outcomes

Crushed or struck-by machinery Struck-by flying debris or striking the public with flying debris.

Struck-by motor vehicles during loading, unloading activities.

Fires, explosions, and electrocution


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There are thousands of machine-related injuries each year.

Proper training can prevent these injuries.

Workers should know how to operate a piece of machinery and inspect

for problem areas before turning on the power.

Have you reviewed the owner's manual?

Are the Warning decals in place?

Are the machine guards properly placed and in good condition?

Are air and hydraulic lines in good condition and not leaking?

Is the setup a proper setup?

Is the work zone free from hazards?


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Keep machines repaired,

lubricated, and adjusted.

Clearly mark control switchesand valves that control

machines.

Check machines foremergency stop switches


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Stay away from moving parts.

Turn power off and remove key before working around

or performing maintenance on the machine.

Use appropriate lockout and tag out procedures to

prevent equipment from being re-energized while work

is being performed on or around it.


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Position the chipper or shredder so that workers do not have

to stand on slopes when feeding material into the machine.

Keep the area around the chipper or shredder free oftripping hazards.

Put up warning signs to keep the public a safe distance from

work area.

Ensure the dislodging chute is positioned to prevent chips

from being blown in any direction.


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Workers feeding materials into self-feeding chippers orshredders can get caught in chipper knives.

A workers limb can be shredded.

An unlatched, improperly secured, or damaged hoodcan be thrown from the chipper or shredder.

Fixtures can easily be thrown if they come into contactwith the rotating knives.


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Wear a hard hat, sturdy slip-resistant footwear, eyeprotection, hearing protection, gloves without cuffs, andpants without cuffs.

Read the operators manual and complete training onproper use and safety precautions before using it.

Test all safety and emergency shut-off devices before

operating the chipper or shredder.

Make sure the material to be chipped is free from

stones, metal, and other foreign objects.

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Sturdy shoes are a must; steel-toed work boots areadvised.

Long pants and long sleeve shirts protect fromflying debris, grass clippings, and sun.

Safety glasses or goggles, especially when

mowing near solid objects like gravel driveways.

Hearing protection may be necessary.


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A poor choice of footwear.

Steel toed boots with

lugged soles should beworn.

The steel toe will help

protect your feet.

The lugged soles will

help prevent slipping.


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Run-over or struck-by equipment

Caught between solid objects and moving equipment

Caught between moving parts or elevated components and

the ground Falling from machines or overturning equipment

Contacting overhead or underground utilities

Amputation due to cutting action

Entanglement in moving parts Struck-by flying debris and rocks

Leading to injury or death


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Improper set-up and/or use of equipment

Not following manufacturers instructions and warning labels

Defective equipment

Unsafe work practices

Driver freeing stuck cable without strong

positive means of dump body support.

Cable is freed

Dump body drops

Driver is crushed

This driver died !


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Each year as many as 400 workers die and another 4000are injured from cave-ins.

Most deaths are in trenches 5-14 ft deep.

Cave-ins cause deaths by; Suffocation, Crushing, Loss ofCirculation and Falling Objects.

One cubic foot of soil can weigh up to 140lbs

One cubic yard can weigh 3000 lbs.


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Cave-ins (the greatest hazard)

Fires, Explosions, Electrocutions andEngulfment due to utility hits

Struck by falling objects

Falls into excavation

Equipment rollovers

Hazardous atmospheres


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Practice defensive operation at all times.

The machines capacity and stability limitations

Operating techniques and procedures The task at hand

That using good judgment and professional skill isalways needed

The manufacturers recommended operator safetyinstructions and warning labels!


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Excavating is one of themost hazardousconstruction operations

Most accidents occur intrenches 5-15 feet deep

There is usually no

warning before a cave-in


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Never enter a vertical sided trench unless it is less then 5 feet deep and

determined to be safe.

Never enter a trench deeper then 5 feet unless a protective system is

used.

Sloping, shoring, and shielding are examples of protective systems.

Sloping may be the easiest for landscapers.

Make sure a ladder is within 25 feet of your work zone when deeper then

4 feet.

Make sure excavated dirt and rocks are kept back at least 2 feet from the

edge.

Take precautions to ensure tools, materials, and equipment wont roll or

fall in


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This is the acceptable slope for any kind of soil.

Excavations should be sloped as close aspossible to this configuration.


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Never place yourself in the direct path of moving equipment or

equipment that may move unintentionally.

Realize that equipment has blind spots.

Work defensively around equipment.

Approach equipment only after making eye contact and signaling the

operator, wait for their approval.

Never place yourself within the swing radius or path of moving

components.

Never stand directly between wheels or on tracks when talking to the

operator.


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Each piece of equipment

must have its own

extinguisher.

Each extinguisher must

be fully charged.

Extinguishers should beinspected at the

beginning of each shift.


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construction safety in heavy euipments

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