Hazard And Hazard Management Construction Essay

Hazard And Hazard Management Construction Essay

The construction industry is characterized by a relatively high injury and illness rate compared to other industries In the past two decades more than 26000 US construction workers have died at work That equates to approximately five construction worker deaths every working day Safe practices can help eliminate the hazards present in the construction industry and reduce the number of onthejob injuries and deaths The techniques in the construction industry have been improved due to the rapid development of science and technology However the constructional hazards are not decreased as expected To reduce or prevent occupational hazards in the construction industry some methods were proposed to provide a prevention and improvement technique against occupational hazards A method was developed to identify important hazard types and hazard causes Additionally especial analyses were performed to assess the risk value of the hazard

2 Hazard and Hazard Management

Hazards identification is the act of identifying the failure conditions or threats which could lead to undesirable events It may be outlined as a condition object activity or event with the potential of inflicting injuries or sick health to personnel injury to property loss of fabric or reduction of the ability to perform a prescribed operate or combination of those DOSH 2006 Paul Everitt and Anthony Price 2004 define hazard as any source or situation with the potential to cause harm to the safety and health of people or damage the environment or to plant equipment Because the existence of a hazard is not always obvious and increases with human interaction a structured and systematic approach is essential in compiling a comprehensive list of hazards

The hazard management means the method of implementing counter measures to decrease the chance of hazard

3 The project features and their relation to the construction hazard

To determine that how the project features contribute to construction hazard it needs to categorize the project to the specific project features and breaking that down into a sequence of stages and then identifying all possible lossofcontrol incident that may occur during the construction work

31 The project features and the sequence of stages

Foundations

Excavation

Pilling

Structural activities

Concrete Slabs

Castinplace concrete columns and walls

Erecting precast slabs

Erecting precast walls

Forming walls with stone cladding

Finishing activities

Brick masonry

Stone cladding

Exterior plastering

Gypsum boards

Floor tiling

Roof insulation

Roof sealing

Glazing

Other activities

Electrical installation

Plumbing

HVAC installation

32 Some subactivities of the above stages are

According to the above category there are some subactivities that would be hazardous in construction sites such as

Activity

Subactivity

Hazard

Event

Foundation

Excavation

Cave in

Collapse the excavation wall

Piling

Sequencing of piling work

Conflict with other parts of the project construction creating unsafe working conditions

Piles located in positions in restricted working space

Personal injury from falling debris crushing Unsafe removal of guards or auger cleaners Risk to third parties

Piling near to the top of slopes

Slope failure rig overturning

Working in excavations

Access ramps and wall props can hold up working space

Structural activities

Concrete Slabs

Slips trips

Fall

Castinplace concrete walls with stone cladding

Pouring concrete using a crane bucket

Filling bucket

Concrete spatter

Exterior working

Preparing the wall area

Filling holes

Dropping an object

Casting lightweight concrete for drainage

Casting concrete

Pouring the concrete

Dropping an object

Concrete columns and walls

Fix steel rebar cage

Final ties

Collision with steel bars

Drywall construction

Erecting the framing

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