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CONSTRUCTION SAFETY PPT – VI
By AVINASH KUMAR GUPTA
VEHICLES
•reversing blind (don’t depend upon warning hooter)
•work near overhead power lines
•carrying unauthorized passengers
•poor maintenance
•overloading
•site congestion
•poor traffic layout
•uneven ground/ debris
CONSTRUCTION SAFETY PPT - VI
PRECAUTIONS
– all drivers to have proper National License
– training
– go up & down the slop, rather than across it where ever practicable
– avoid overhead power lines & steep slopes while selecting routes
– speed limits clearly displayed
– speed limits to be reduced for adverse site condition/ work in
progress
– unattended vehicle should have engine switched off
– tipping bodies should be lowered
– safety boots during loading/ unloading
Goalposts to compel drivers to lower crane and excavator jibs, and
avoid contact with overhead power lines
INSPECTION OF VEHICLES
• Daily – water, oil, fuel, lights,
inflation of tyre and breaks
• (WOFLIB)
• Week - Check by fitter
• periodic - service centre of
manufacturer
OVERTURNING
• use barriers, fixed stops
• construction vehicles are unstable & liable
to overturn
• not to turn at excessive speed
• protection from falling objects
• if vehicle begins to topple over remain in
the seat and do not try to jump clear
LOADING
• loads should be evenly distributed, properly
secured and should not project
• projections to be shown by attachment of
flays
• uneven load restrict in loss of control
• body of tipper lorry always be lowered
REMEMBER
• If your vehicle begins to topple over, remain in
the seat and do not try to jump clear
• Keep your vehicle tidy and the cab free from
tools and material which might obstruct the
controls.
• Keep to speed limits.
• Do not carry unauthorized passengers.
• Do not drive across a slope.
Movement of Materials
• Cranes
(a)weight, size & type of load
(b)Maximum road or reduces requirement
(c)Restriction - overhead powerline, state of
the site, type of ground
(d)Need of trained operators/ --------
• Erections
-skilled workers
–follow manufactures instruction
SIGNALING
• must be > 18 years
• trained & experienced
• signaling system (use telephone)
• hand signed should be clear &
distinct
Hand signals to crane drivers should be
clear and distinct, and should follow a
recognized code or system
OVERLOADING
• mark with safe working load
• operator to estimate the load correctly
• safe working load with every radius in
derricking job
– not allow the load to swing
– don’t overlok the indicator
SAFE LOAD INDICATOR
• job cranes should have automatic safe
load indicator
• warn by hooter
• take into account the effect of wind/ soft
ground conditions
• raise the load and stop – guess the load
than continue
• Don’t overlook the indicator
Maintenance
– wire ropes
– brakes
– safety devices
Mobile cranes
• liable to overturn or soft, wet ground,
during vainer
• Adequate clearance for crane’s jib/ boom
• 4m from overhead power lines
• sufficient counter weight
• no drain pipes beneath the outrigger pads
Tower Cranes
• prevent overturning
• anchored to the ground, security
counterweighted
• load to be lifted vertically
• avoid large area loads during winds
• specify maximum wind
• free to rotate @ 3600
Mobile cranes should operate with
outriggers extended to prevent
overturning
Cranes: The need for a safety hook fitted with a latch to prevent
displacement of loads is explained to workers
Good Hoists
Erection
• erection, extension, dismantling by a
specialist/ competent supervisor
• tower/ mast to be securely filled to building/
scaffold & maintained vertical
• Maximum height of 18m or as specified by
manufacturer
GOOD HOISTS
ENCLOSURE
• at the ground level of ht of lm
• suitable gates
• remainder to be enclosed with wire mesh
• gates should be filled at every platform level
• use safely devices in the in the event of failure of
hoist rope or driving gear
GOOD HOISTS
• Loads
– safe carrying load to be marked
– not to be overloaded
– loose bricks not be carried in open hoist
platform
– no one to be allowed to ride on the platform
– carriage of persons through lifts
GOOD HOISTS
Testing & examination
• tested & examined after installation
• weekly checks to be recorded
REMEMBER
• If you cannot see the load all the time, you
need a signaller.
• Beware of exceeding the safe working load
when trying to free a stuck load.
• Never climb up the tower or get onto the
boom while the crane is in use.
• Make sure the load you are lifting is properly
secured
Construction safety VI

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Construction safety VI

  • 1. CONSTRUCTION SAFETY PPT – VI By AVINASH KUMAR GUPTA VEHICLES •reversing blind (don’t depend upon warning hooter) •work near overhead power lines •carrying unauthorized passengers •poor maintenance •overloading •site congestion •poor traffic layout •uneven ground/ debris
  • 2. CONSTRUCTION SAFETY PPT - VI PRECAUTIONS – all drivers to have proper National License – training – go up & down the slop, rather than across it where ever practicable – avoid overhead power lines & steep slopes while selecting routes – speed limits clearly displayed – speed limits to be reduced for adverse site condition/ work in progress – unattended vehicle should have engine switched off – tipping bodies should be lowered – safety boots during loading/ unloading
  • 3. Goalposts to compel drivers to lower crane and excavator jibs, and avoid contact with overhead power lines
  • 4. INSPECTION OF VEHICLES • Daily – water, oil, fuel, lights, inflation of tyre and breaks • (WOFLIB) • Week - Check by fitter • periodic - service centre of manufacturer
  • 5. OVERTURNING • use barriers, fixed stops • construction vehicles are unstable & liable to overturn • not to turn at excessive speed • protection from falling objects • if vehicle begins to topple over remain in the seat and do not try to jump clear
  • 6. LOADING • loads should be evenly distributed, properly secured and should not project • projections to be shown by attachment of flays • uneven load restrict in loss of control • body of tipper lorry always be lowered
  • 7. REMEMBER • If your vehicle begins to topple over, remain in the seat and do not try to jump clear • Keep your vehicle tidy and the cab free from tools and material which might obstruct the controls. • Keep to speed limits. • Do not carry unauthorized passengers. • Do not drive across a slope.
  • 8. Movement of Materials • Cranes (a)weight, size & type of load (b)Maximum road or reduces requirement (c)Restriction - overhead powerline, state of the site, type of ground (d)Need of trained operators/ -------- • Erections -skilled workers –follow manufactures instruction
  • 9. SIGNALING • must be > 18 years • trained & experienced • signaling system (use telephone) • hand signed should be clear & distinct
  • 10. Hand signals to crane drivers should be clear and distinct, and should follow a recognized code or system
  • 11. OVERLOADING • mark with safe working load • operator to estimate the load correctly • safe working load with every radius in derricking job – not allow the load to swing – don’t overlok the indicator
  • 12. SAFE LOAD INDICATOR • job cranes should have automatic safe load indicator • warn by hooter • take into account the effect of wind/ soft ground conditions • raise the load and stop – guess the load than continue • Don’t overlook the indicator
  • 13. Maintenance – wire ropes – brakes – safety devices
  • 14. Mobile cranes • liable to overturn or soft, wet ground, during vainer • Adequate clearance for crane’s jib/ boom • 4m from overhead power lines • sufficient counter weight • no drain pipes beneath the outrigger pads
  • 15. Tower Cranes • prevent overturning • anchored to the ground, security counterweighted • load to be lifted vertically • avoid large area loads during winds • specify maximum wind • free to rotate @ 3600
  • 16. Mobile cranes should operate with outriggers extended to prevent overturning
  • 17. Cranes: The need for a safety hook fitted with a latch to prevent displacement of loads is explained to workers
  • 18. Good Hoists Erection • erection, extension, dismantling by a specialist/ competent supervisor • tower/ mast to be securely filled to building/ scaffold & maintained vertical • Maximum height of 18m or as specified by manufacturer
  • 19. GOOD HOISTS ENCLOSURE • at the ground level of ht of lm • suitable gates • remainder to be enclosed with wire mesh • gates should be filled at every platform level • use safely devices in the in the event of failure of hoist rope or driving gear
  • 20. GOOD HOISTS • Loads – safe carrying load to be marked – not to be overloaded – loose bricks not be carried in open hoist platform – no one to be allowed to ride on the platform – carriage of persons through lifts
  • 21. GOOD HOISTS Testing & examination • tested & examined after installation • weekly checks to be recorded
  • 22. REMEMBER • If you cannot see the load all the time, you need a signaller. • Beware of exceeding the safe working load when trying to free a stuck load. • Never climb up the tower or get onto the boom while the crane is in use. • Make sure the load you are lifting is properly secured