Support of Excavation (SOE) is a provisional earth retaining system planned
to control the ground for enabling a safe and effective space for the
construction. In certain cases, the SOE System can act as permanent structural
support. Now, let’s take a look at the Excavation Checklist that supports
obtaining SOE Permit.
To
get your SOE
permit approval,
you must pay heed to the excavation checklist that includes General Jobsite
Inspection, Utilities, Access & Egress, Wet Conditions, Hazardous Atmosphere,
and Support System.
General Jobsite Inspection
for SOE Permit Approval:
·
Excavations,
adjacent areas, & protective systems inspected by a capable person every
day before the onset of work
·
A
competent person who can decide to remove employees from excavation instantly
·
Removal/Support
of Surface Impediments
·
Employees
threatened from loose rock or soil, posing a menace by falling or rolling into
the excavation
·
Hard
hats are worn by employees
·
Materials
& equipment set back within 2 feet from the verge of the excavation
·
Obstacles
provided at remotely located excavations, wells, shafts & pits
·
Walkways
& bridges over excavations, which are 4 feet or more in-depth are fortified
with typical guardrails & toe boards
·
Warning
vests or highly visible clothing provided & worn by employees exposed to
public vehicular traffic
·
Employees
need to maintain distance from vehicles being loaded or unloaded
·
Warning
system established & utilized while mobile equipment is functioning close to
the verge of the excavation
·
Employees
proscribed from going under suspended loads & prohibited from working on
the facets of inclined or benched excavations above other employees
Utilities for SOE Permit:
·
Utility
companies communicated and the location of utilities
·
The
specific location of the marked utilities
·
Underground
installations that are protected, supported, or removed while excavation is
open
Access & Egress:
·
Lateral
travel to means of egress not more than 25 feet in excavations & 4 feet in
depth
·
Structural
ramps used by employees designed by a competent person
·
Structural
ramps used for equipment designed by a registered professional engineer
·
Employees
shied from collapses while entering or departing the excavation
Site Location:
·
Date,
Time & the Persons Managing the Site
·
Soil
Classification with the Depth & Width of Excavation
·
Kind
of Protective System Used
Wet Conditions:
·
Precautions
for protecting employees from water accumulation
·
Water
removal equipment monitored by a competent person
·
Surface
water/runoff diverted or controlled to prevent accumulation in the excavation
·
Inspections
made after every rainstorm or other hazard increasing occurrence
Checking the Hazardous
Atmosphere for SOE Permit:
·
Testing
the Atmosphere within the excavation where there is a probability of an oxygen shortage,
inflammable or other detrimental contaminant revealing employees to a hazard
·
Adequate
precautions for protecting employees from exposure to an atmosphere encompassing
less than 19.5% oxygen and to other hazardous atmospheres
·
Providing
ventilation to prevent employees’ exposure to an atmosphere containing flammable
gas over 10% of the lower explosive limit of the gas
·
Testing
conducted to ensure the safety of the atmosphere
·
Emergency
equipment, like breathing apparatus, safety harness & lifeline, and basket
stretcher where hazardous atmospheres exist
·
Training
employees to use personal protective & other rescue equipment
·
Using
safety harness & lifeline while entering deep confined excavations
Support Systems for Acquiring
SOE Permit
·
Materials
& equipment for support systems based on soil analysis, trench depth &
expected loads
·
Inspecting
materials & equipment used for protective systems to see whether they are
in good condition
·
Removing
materials & equipment if they are not in good conditions
·
Damaged
materials & equipment used for protective systems to be inspected by a
registered professional engineer after repairs & before placing back into
service
·
Installation
of protective systems without uncovering staffs to the dangers of collapses, or
risk of getting obstructed by materials/equipment
·
Members
of support system securely attached to prevent failure
·
Ensure
that the support systems provide stability to the nearby structures, road,
& walls
·
Checking
the backfilling progress with removal of the support system
·
Material
excavation to a level not more than 2 feet beneath the bottom of the support
system and only if the system is intended to support the loads calculated for
the full depth
·
Placing
the shield system to prevent lateral movement
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