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1912929
Excavation
Descripción
Element 1 Page 6
Sin etiquetas
ngc2
Mapa Mental por
Yasir Kayani
, actualizado hace más de 1 año
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Creado por
Yasir Kayani
hace casi 10 años
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Resumen del Recurso
Excavation
hazards
materials falling onto people working in the excavation
people being struck by plant
people & vehicles falling into excavation
undermining nearby structures
contact with underground services - gas/electricity
ingress of water
fumes from vehicles/plant (co2)
methane/other gases
contaminated land
lack of oxygen
biological hazards e.g. leptospirosis, drains/sewers, rubbish and waste
control measures
supported exceptions with timber
trench boxes
services supported
tied ladders for access
batter or bench sides of excavation
spoil stored away from sides of excavation
signs and barriers/edge protection
PPE e.g. hard hats/high vis clothing
keep vehicles away/use stop blocks
trained and competent plant operators
temporary support for nearby structures if needed
backfill or cover excavation when not being worked on
undergorund services
look around for obvious signs of underground services e.g. drains, patching of surface etc.
use cable locators to trace any services. mark the ground accordingly
use services plans provided by utility company - these are only a guide
get cables isolated and made dead before work begins if possible
dig trial holes by hand - use shovels and spades, not fork and picks
hand dig if in doubt (particularly for plastic cables which cannot be detected)
have emergency procedures/contact in place
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