View
794
Download
0
Category
Preview:
DESCRIPTION
하절기 건설현장 안전보건 가이드(영문)
Citation preview
Safety measures by danger factor in summer
What are the dangers that can be found in the construction site?
Contents
Analysis of the current status of accidents in construction sites
Analysis of Accidents in Construction Sites
Analysis of accidents for the past 2 years
Types of accidents in 2006
Fatal accidents and accidents between June and August
Category Accident Victims No. of Deaths
2006 17,956 632
2005 15,918 609
Increase·Decrease 2,038 23
12.8% increase in the number of accident victims (2,038 persons)
12.8% increase in the number of accident victims (2,038 persons)
3.8% increase in the number of deaths (23 persons)
3.8% increase in the number of deaths (23 persons)
Analysis of accidents for the past 2 years
Analysis of Accidents in Construction Sites
Fall5,873
persons
Fall5,873
persons
Falling to the same level2,855
persons
Falling to the same level2,855
persons
Collision2,275
persons
Collision2,275
persons
Struck by falling object
2,108 persons
Struck by falling object
2,108 persons
account for 73% of the total account for 73% of the total no. of accidents.no. of accidents.
account for 73% of the total account for 73% of the total no. of accidents.no. of accidents.
32.7%
15.9%
12.7%
11.7%
Among the 17,956 victims17,956 victims in in 2006,2006,
Among the 17,956 victims17,956 victims in in 2006,2006,
Analysis of Accidents in Construction Sites
1,709
1,376 1,4371,452
1,652
1,455
-
500
1,000
1,500
2,000
June July August
20062005
The no. of accidents occurring in summer (June~August) accounts for more than 26% of the total no. of accidents.
Victims
Accidents between June and August
Analysis of Accidents in Construction Sites
Deaths
46
5459
33
6466
-
20
40
60
80
June July August
20062005
Fatal accidents between June and August
The no. of accidents occurring in summer (June~August) accounts for more than 25% of the total no. of accidents.
Analysis of Accidents in Construction Sites
Safety Measures by Danger Factor in Summer
Downpour
Landslide
Collapse of form shore
Electric shock
Struck by falling object
Suffocation
Health problems in summer
Safety checklist
DangerfactorsDangerfactors
Landslide caused by downpourLandslide caused by downpour
Damage to buildings/facilities due to the weakening of land or damage to underground utility works
Damage to buildings/facilities due to the weakening of land or damage to underground utility works
Suspension of construction and physical loss due to flooding
Suspension of construction and physical loss due to flooding
Safety measures for downpourSafety measures for downpour
Safety Measures by Danger Factor in Summer
Safety m
easures
Safety m
easures
Stock up on emergency flood prevention materials and equipment.
Organize and manage an emergency team.
Check the current underground utility works and maintain a mutual assistance system with related organizations.
Inspect the facilities around the site to prevent loods.
Perform safety inspection and take action in advance against facilities that are vulnerable to rain.
Safety Measures by Danger Factor in Summer
Case of Accident and Actions
Case of Accident and Actions
Death during landslide caused by downpour
Install slope protection. Install hill top channel and raceway. Install a drainage system.
Safety Measures by Danger Factor in Summer
Danger factorsDanger factors
The rainwater percolates in the slope and loosens the soil. This causes landslide.
The rainwater percolates in the slope and loosens the soil. This causes landslide.
Danger of retaining wall collapsing - Loose soil caused by rainwater - Earth pressure increase due to increase in rainwater
Danger of retaining wall collapsing - Loose soil caused by rainwater - Earth pressure increase due to increase in rainwater
Collapse of retaining wall and stonework due to damaged drainage systemCollapse of retaining wall and stonework due to damaged drainage system
Safety measures for preventing landslideSafety measures for preventing landslide
Safety Measures by Danger Factor in Summer
Safety m
easures
Safety m
easures
Conduct safety inspection and take action in advance to prevent tunnel cave-in.
Prohibit the passing of cars or placing of materials to avoid increasing the load above the tunnel.
If the tunnel is in danger of caving in, or if there is danger of soil/rock falling, install a retaining wall or prohibit the entry of workers to the site.
Check the state of retaining wall and take safety actions if necessary.
Safety Measures by Danger Factor in Summer
1 person was crushed to death when the land above the dug tunnel caved in.
Observe the ground digging surface gradient. If impossible, install a retaining wall.
Case of Accident and Actions
Case of Accident and Actions
Safety Measures by Danger Factor in Summer
Danger factorsDanger factors
Form shore collapses during the casting of concrete.
Form shore collapses during the casting of concrete.
Safety measures for collapsing form shoreSafety measures for collapsing form shore
Safety Measures by Danger Factor in Summer
Safety m
easures
Safety m
easures
Investigate the form shore structure and observe the assembly instruction.
• The performance of shore must be verified.• For those with height of more than 3.5m, a horizontal
connector must be installed every 2m.• For the slope timbering, a wedge must be installed to
distribute the weight on the post veneer.• In case of high floor or thick slave, the system shore
must be used.• More than 2 steel pipe supports cannot be used.
Safety Measures by Danger Factor in Summer
Case of Accident and Actions
Case of Accident and Actions Death caused by
constriction by concrete when form shore collapsed
during the casting of concrete
Inspect the form shore structure and construct based on the assembly instruction.
Install horizontal connectors.
Observe the casting time and order.
Safety Measures by Danger Factor in Summer
Danger factorsDanger factors
Electric shock while handling electrical machineries and tools during the rainy season
Electric shock caused by flooding in electrical facilities
Electric shock caused by contact with electric chargers
Safety measures for preventing electric shockSafety measures for preventing electric shock
Safety Measures by Danger Factor in Summer
Safety m
easures
Safety m
easures
• A temporary power receiving unit must be installed in a safe place with no possibility of flood.
• Electrical machineries and tools must not be handled with wet hands.
• Portable electrical machineries and tools must be unplugged before use.
• Conduct safety inspection on wiring and temporary wiring for portable wiring.
• Do not touch processing wires; install an insulation protection unit near the worker.
Safety Measures by Danger Factor in Summer
Case of Accident and Actions
Case of Accident and Actions
While installing a dust net from the external double scaffold, the worker got electrocuted.
Avoid electric wires or install insulation when working near electric wires.
Install an insulation protection unit on the charging wire.
Safety Measures by Danger Factor in Summer
Danger factorsDanger factors
Danger of getting struck by falling objects from high places due to wind
Danger of getting struck by falling objects from high places due to wind
Safety measures for preventing impact due to falling objectsSafety measures for preventing impact due to falling objects
Safety Measures by Danger Factor in Summer
Safety m
easures
Safety m
easures
• Various installations, safety notice boards, and load must be installed firmly and reinforced to resist strong wind.
• Do not work during heavy downpour or strong wind. Take shelter until the weather improves.
• Inspect the state of the net for blocking falling objects.
Safety Measures by Danger Factor in Summer
Case of Accident and Actions
Case of Accident and Actions
Collapse of scaffolding due to strong wind
Reinforce the connection of scaffolding to the wall.
If dust net or curtain net is installed on the scaffolding, make sure it is not affected by strong wind by installing a ventilation opening.
Safety Measures by Danger Factor in Summer
Danger factorsDanger factors
Suffocation caused by the lack of oxygen due to the decomposition of organic matter of growing microorganisms that live in tanks, manholes, and pits during summer
Suffocation caused by the lack of oxygen due to the decomposition of organic matter of growing microorganisms that live in tanks, manholes, and pits during summer
Suffocation caused by breathing in organic vapor when working with waterproof solution and paint containing organic solvent in a closed area
Suffocation caused by breathing in organic vapor when working with waterproof solution and paint containing organic solvent in a closed area
Safety measures for preventing suffocationSafety measures for preventing suffocation
Safety Measures by Danger Factor in Summer
Safety m
easures
Safety m
easures
When working in closed tanks, manholes, sewage, or pits for a long time, make sure the oxygen content is above 18%.
Install a ventilation unit when working with organic solvent in a closed space.
Secure the pathway and conduct safety training for workers to enable prompt escape in case of emergency.
Safety Measures by Danger Factor in Summer
Case of Accident and Actions
Case of Accident and Actions
Breathing in organic vapor while working with waterproof solution and paint with organic solvent in a closed space
Install a ventilation fan and make sure the oxygen content is above 18%.
Measure the oxygen content before and during work.
Install an escape path that can be used for workers’ escape in case of emergencies.
Safety Measures by Danger Factor in Summer
Install and manage a resting lounge where workers can rest from the heat while working in the construction site in summer.
Try not to work outside from 1pm to 3pm, the hottest times in summer.
Drink a glass of cold water every 15~20 minutes while working.
Measures for preventing health problems in summerMeasures for preventing health problems in summer
Safety Measures by Danger Factor in Summer
Case of Accident and Actions
Case of Accident and Actions
Health problem due to overworking in hot summer
Avoid working outdoors for too long in summer.
- Divide the working time and resting time reasonably.
Take in sufficient amount of water and salt.
Safety Measures by Danger Factor in Summer
02
▶ It is easy for workers who wear helmet and safety boots while working in construction sites to get athlete’s foot.
Avoid getting
athlete’s foot in
summer.
- Put on safety boots alternatively.
- Maintain cleanliness by cleaning the feet regularly.
- Consult a doctor and get treatment immediately once you develop athlete’s foot.
Health Management Tip
Health Management Tip
Safety Measures by Danger Factor in Summer
03
▶ Workers working outdoors must maintain their health during summer.
Drink cool
water often.
- Protect the skin and eyes from damage due to UV rays.
- Do not work topless or expose too much skin under the sun.
- Ensure sufficient intake of water and salt when working next to a road with poor radiant heat.
- Avoid working between 1pm and 3pm, the hottest times during summer.
Avoid working
between 1 pm and 3
pm.
Safety Measures by Danger Factor in Summer
Emergency action
Move to a cool place with shade
and take off or loosen the
victim’s clothes.
Give 1 liter of water and
bring the victim to a hospital
if he/she loses consciousness
or the temperature of his/her
body rises.
Safety Measures by Danger Factor in Summer
Flood prevention plan
Safety checklist for the construction site in summerSafety checklist for the construction site in summer
Item Inspection Result
Prearranged plan
○ Measure the forecasted amount of rainfall and draft drainage plan.
○ Check the flood control materials. - Water pump (including a substitute in case one breaks down),
sandbag, straw bag, spade, wheel cart, rain gear, and rain boots
○ Check the emergency contacts.○ Check the organization and management of the
emergency team.○ Check the measures to be taken during emergencies.
- Materials and equipment sheltering plan during downpour
Safety Measures by Danger Factor in Summer
Inspection of facilities around the site
Item InspectionResul
t
Facilities around the site
○ Maintenance state of drainage facilities - Check the drainage way.- Install catchment well and grit chamber.- Connection state with nearby drainage system- Check the repair and maintenance state of the drainage way th
at is vulnerable during the rainy season.○ Check the operation state of the water pump.
- Check whether the water pump works. - Check whether the water pump that works on gas in case of po
wer failure is available.○ Safety state of temporary road for construction
- Safety of road and state of soil- Check whether left-right drainage is installed.
○ Check for cracks on the road.
Safety Measures by Danger Factor in Summer
Prevention of collapse
Item InspectionResul
t
Dug slop
e
○ Check for any problem in slope state as well as whether the grade standard has been observed.- Joint and crack
○ Check the drainage way and maintenance.- Hill top channel, raceway, drainage way
○ Check whether slope protection measures have been taken.- Vinyl tent, sandbag, and straw bag
○ Check whether entry to the dug slope is prohibited.
Retaining wall
○ Check the removal of earth and sand and falling rocks.○ Check the entire drainage and cleaning.○ Check for cracks on the wall or change in shape.
Safety Measures by Danger Factor in Summer
Item Inspection Result
Retaining wall
○ Check the assembly instruction as well as whether the order has been followed.
○ Research and inspection- Check the intersection area as well as for any damage, change in shape,
or fall-off.- Check for any damage in the joining state in the supporting point.- Check for any crack in braced wall.
○ Check out the measure for the prevention of the horizontal support bucking.- The connection part must be installed on the supporting point of middle
pile.- The machine or material to be supported must not be stacked.- Check the jack intersection of the horizontal support and the stiffener
used.○ Check the prevention of earth and sand outflow.○ Check the measurement management.○ Check the following when installing braced wall:
- Air space at the back of braced wall- Reinforcement of area that will get wet in braced wall due to irrigation
channel- Any use of prohibited braced wall connection- Installation simultaneous to digging
Safety Measures by Danger Factor in Summer
Electric shock prevention
Item Inspection Result
Electric
shock
prevention
○ Safety state of temporary wiring - Safety during flooding - Height of gate and grounding - Danger sign prohibiting entrance
○ Safety state of temporary cabinet panel - Outer grounding - Installation and lock state of cabinet panel locking device - Internal circuit marking for cabinet panel - Short circuit breaker on cabinet panel circuit - Protective cover in internal charger - Use of power outlet
○ Other machines and small electrical tools - Outer grounding - Use of electrical drill, light projector
Safety Measures by Danger Factor in Summer
Item Inspection Result
Electric
shock
preventio
n
○ Installation state of wiring and portable wiring - Exposure to road and pathway- Existence of metal (make sure no metal is used)- Use of waterproof outlet and plug when used outdoors- Damage to insulation clothing
○ State of exchange arch welder- Make sure only an automatic electric shock blocker that passed the
performance test is used.- Outdoor grounding- Check the use of wiring and holder standardized item as well as for
any damage to insulation clothing.- Insulation of the terminal connection area
○ Groundwater pump- Short circuit breaker- Outdoor grounding- Insulation of the terminal connection area- Appropriateness of the water pump-raising rope (use manila rope)
Safety Measures by Danger Factor in Summer
Suffocation prevention
Item Inspection Result
Suffocatio
n preventio
n
○ Installation and operation of the ventilation unit when painting in closed space, e.g., tank and water tank- Avoid using excessive material when painting.
○ When spray painting, always use a mask.○ When working at night, secure sufficient lighting.○ Check the oxygen content before working inside manholes, pits,
or tanks.- Make sure the oxygen content is above 18% before and during work
by using a ventilation fan.
○ Check the use of equipment with internal combustion engine inside the manhole or tunnel where ventilation is insufficient.- Install a ventilation unit to maintain air quality when using a machine
with internal combustion engine.
Safety Measures by Danger Factor in Summer
Item InspectionResu
lt
Suffocatio
n preventio
n
○ Check the oxygen content before working in a tank that had or currently contains inert gas such as argon gas.- When oxygen content is below 18%, install a ventilation fan to
maintain oxygen at above 18%.○ When using adhesive such as super glue (organic solvent) in
closed space, install a ventilation fan.○ Check the oxygen content when installing a retaining wall in
closed space in underground water purifier tank and water tank and dismantling the wall after curing or casting the concrete.
○ Wear air-supplied respirator when working in a place with oxygen deficiency.
○ Make sure there is a ladder or a fiber rope that can be used for workers’ escape and rescue during emergencies or accidents.
○ Assign a person in charge of safety when working with organic solvent and conduct special safety training.
Safety Measures by Danger Factor in Summer
Prevention of impact due to falling objects
Item Inspection Result
Prevention of impa
ct due to
falling
objects
○ Appropriateness of installation of temporary materials or signboards- Check whether the scaffolding meets the installation standard.- Check the installation of ventilation hole to prevent the scaffolding
installed outdoors from moving in case of strong wind.- Check whether the platform is fixed.- Check for any loose materials or parts on the roof.
○ Checking the installation of net for blocking falling objects and its appropriateness- Net installation and between scaffoldings, net between scaffolding
and building- Appropriateness of net angle and horizontal projecting part state
(angle: 20~30°; projecting part length: more than 2m)○ Neatness of various materials○ Rotation limiting switch based on the tower crane’s mutual
interference○ Stop working in case of strong wind and take emergency
actions.
Safety Measures by Danger Factor in Summer
What are the Dangers That Can be Found in the Construction Site?
Fall
Struck by falling objects
• Collision
• Electric shock
The scaffold must be fixed in a workplace that is more than 2m
high. A safety guardrail must also be installed.
Working scaffold
Fall
What are the Dangers That Can be Found in the Construction Site?
- Do not use a wooden
ladder built on-site.- Prevent the ladder
from falling.- Do not use a ladder for
working.
Ladder
What are the Dangers That Can be Found in the Construction Site?
Fix the opening cover or install a safety guardrail.
Opening
What are the Dangers That Can be Found in the Construction Site?
Work after fixing the platform, safety guardrail, and elevating unit safely.
Portable scaffolding
What are the Dangers That Can be Found in the Construction Site?
When a safety guardrail or
a cover cannot be installed,
install a fall prevention net
instead.
Fall prevention net
What are the Dangers That Can be Found in the Construction Site?
Install a net for blocking falling
objects or a protective shelf outside
the building and entrance/exit for use by the
workers.
Net for blocking falling objects
Struck by falling objects
What are the Dangers That Can be Found in the Construction Site?
Control the entry of workers to a working area
with danger of objects falling from above.
Controlling entry
What are the Dangers That Can be Found in the Construction Site?
When using construction machineries,
assign a signaler to prevent people
from coming near the machines.
Construction machineries
Collision
What are the Dangers That Can be Found in the Construction Site?
Use short circuit breaker
for electromotion machineries or
tools.
Short circuit breaker
Electric shock
What are the Dangers That Can be Found in the Construction Site?
Ground the outer metal cover
for electromotion machineries
and tools.
Grounding
What are the Dangers That Can be Found in the Construction Site?
Thank you.
Recommended