RISK ASSESSMENT

Date Severity (S) Frequency (F)

Company Classification Event Classification Event

Minor 1 Slight injury or health effects Very unlikely 1 Event will seldom occur
Task Description SHEET PILLING SHORING
Moderate 2 Minor Injury or health effects Unlikely 2 Will occur occasionally
WORKS
Significant 3 Major injury or health effects Possible 3 Will occur infrequently
Serious 4 Fatal accident or total permanent disability Likely 4 Will occur frequently
Specific Work Location
Catastrophic 5 Multiple fatalities-from an accident or occupational Frequent 5 Event is almost certain to occur
Work Responsible Supervisor illness
Residual Risk Value
Job Present Risk Value (after additional
Sub-task Description Hazard Present Control Measure Additional Control Measure control)
Step No
S F R S L R
1 Apply for Permit To Work Non-conformance Secure necessary permit.  Review and check the
Permit Receiver shall be available throughout the permit attachment all the
duration of the activity. 2 1 2 time 1 1 1
Work Permit shall be displayed on work site.

2 Pre-task briefing Lack of knowledge/ understanding TSTI /TBT (specific to the activity and Job Safety  Supervisor shall discuss
Analysis). clearly to all his crew the
3 1 3 possible hazard that will be 1 1 1
encounter during this
activity
3 Crane set up Improper Set-up of crane / Crane operator should conduct a pre-lift check  Supervisor in-charge shall
Obstruction on crane around the crane. inspect the soil stability
Crane shall be leveled in accordance with
manufacturer’s specification and shall be located
on a properly compacted foundation/ground prior
to performing any lift.
Crane Operator shall ensure crane outriggers are
fully extended and level the crane and it shall rise
completely off the ground. 3 2 6 2 1 2
Crane Operator shall ensure the safe distance of
crane to any structure, and have a minimum tail
swing clearance of 0.6 m (2ft.) in the structure.
Mats shall not be permanently secured to the
outrigger pads.
Outrigger mats shall be used under the crane
outrigger float pads during crane lifts.
Ensure no materials obstruction around the crane.
 Crane operator should conduct a daily inspection
and check around the crane 360°.
Rigger supervisor and crane operator shall ensure
the ground are firm, sound and compacted prior to
set-up the crane.
Unauthorized / Untrained Person Only authorized personnel can enter the  Supervisor in-charge shall
barricaded area. provide necessary
All rigging crew involved in the activities shall be requirements to control
qualified, Competent or have experienced to do unauthorized
the activities.
All Riggers shall be certified by Saudi Aramco and
I.D should always available at site.
Crane lift areas shall be barricaded and secured.
3 3 9 2 2 4
Crane operator shall be properly licensed and
certified by Saudi Aramco and Indicated in the I.D
the crane type / model with man basket
authorization for lift.
Warning sign shall be placed LIFTING
ACTIVITIES IN PROGRESS KEEP AWAY at
barricaded perimeters warning site personnel of
the hazard of overhead lifting activities.
Ensure to check the ground stability it should be firm  Supervisor in-charge shall
Overturning due to unstable ground and compacted. inspect the soil stability
condition Outriggers shall be extended accordingly either full
or partial prior to operate. The crane wheels shall be
raised completely off the ground.
Outriggers shall be positioned on a flat surface,
using timbers or suitable material for pads to
evenly distribute the load to the ground.
Crane to be located within the radius for the loads
being lifted.
Outriggers shall always be extended to
manufacturer’s procedures and specifications,
including the requirement to fit manual pins.
Where space is limited, crane should be
configured to maximum capacity – this may 3 3 9 2 2 4
require the use of reduced outriggers or on
rubber; when permitted by the manufacturer.
Outriggers should only be extended on the side
where the operator is positioned or with a suitable
spotter. Where space permits, outriggers shall
always be fully extended.
Outriggers shall always be extended to
manufacturer’s procedures and specifications,
including the requirement to fit manual pins.
All outriggers-jacks should be utilized at all time
(i.e. Front jack)
Generally Standard Safe Working Load capacity
charts are based on all outriggers fully extended
and set with wheels clear of ground.
 Personnel being crushed by Ensure to barricade and clear the permitted space  Supervisor in-charge shall
outriggers from bystanders prior to set up the outriggers. provide necessary
Outriggers should only be extended on the side requirements to control
where the operator is positioned or with a suitable unauthorized
spotter.
Hard barricade shall be installed around the swing 4 4 16 2 2 4
radius of the crane.
Warning signage’s shall be installed around the
working area.
Riggers shall ensure that swing radius of the
crane is free from equipments and personnel.
Overhead/Underground utilities Overhead and underground utilities shall be  Rigger/Flagman and
damage properly located and marked prior to start of work. Supervisor in-charge shall
The precise location and nature of any overhead ensure to check the location
3 2 6 2 1 2
for any overhead utilities
and underground utilities or other obstructions in
prior to set up the crane
the area.
Installation of power pack Pile driving and associated equipment used on-  Supervisor in-charge shall
Equipment failure
site shall be inspected before work starts each complete the necessary
day and per GI 7.030. inspection to ensure that the
Third party certificate and TR inspection sticker machine is ready to utilized
shall be secured prior to utilize the equipment.
Hammers and extractors shall be inspected (e.g
for loose bolts) at the beginning of each lift.
Equipment inspection records shall be maintained.
Pile driving equipment shall be verified to be of
adequate capacity to perform the operation. 3 2 6 2 2 4
If the head of a pile becomes distorted through
driving, no attempt shall be made to clear it from
the leaders by lifting or booming up. The pile head
shall be cut off and the debris from the leaders.
The ram shall be blocked, residual air or steam
pressure relieved and lines disconnected before
maintenance.
Hammers shall not be touched until valves are
closed and the system shall be depressurized.
An inspection shall be performed and repairs  Only competent and trained
Accidental dislodge of hydraulic hose
made as necessary before pile driving equipment operatives shall allow to
is used. install all necessary
Hydraulic /air hoses leading to the vibro hammer attachments in the machine
or jet pipe shall be securely attached to the
hammer with a 6mm (1/4 inch) chain or cable to
prevent whipping in the event a joint at the
3 2 6 2 1 2
hammer breaks.
Hydraulic and air hoses shall be inspected to
ensure they are properly fitted with regulator
valves and quick acting shut-off valves for
emergencies.
Only competent and trained operatives shall allow
changing attachments.
Hydraulic hoses installation Ensure that the hoses connected to power pack  Only competent and trained
Poor connection and vibro-hammer is secured. operatives shall allow to
Connection of hoses shall contained whip lash install all necessary
arrestor. attachments in the machine
Only competent and trained operatives shall allow
changing attachments.
Ensure that workers can change attachments in
the correct manner and reduces the risk of poor
fitting of connections.
3 2 6 2 1 2
Hydraulic /air hoses leading to the vibro-hammer
or jet pipe shall be securely attached to the
hammer with a 6mm (1/4 inch) chain or cable to
prevent whipping in the event a joint at the
hammer breaks.
A properly rated safety chain/cable or equipment
means shall be provided for other hose
connections to prevent whipping in case the
coupling becomes disconnected.
Use of correct PPE’s when changing attachments i.e.  Necessary PPE are required
Cuts and abrasions impervious gloves, eye protection, coveralls. during the installation
Utilize tools for their intended purposes.
Use leather or cut-resistant (Kevlar) work gloves 2 1 2 1 1 1
when manipulating hand tools, handling sharp-
edged material, or when hands are exposed to
potential pinch point, cuts and abrasions.
Wear chemical-resistant gloves, apron, boots,  Provide necessary PPE as
Skin contact with hydraulic oil
coveralls, eyewear, and/or other clothing as per MSDS requirements
recommended in the MSDS when handling any
chemicals.
Handle and dispose of hydraulic wastes safely.
Spill kits shall be available on site.
Obtain, read, and understand the Material Safety
Data Sheet (MSDS) and be aware of the hazards 3 2 6 2 1 2
listed.
Follow the work practices and specific training on
how to work safely with these materials at your
worksite.
Know measures to take to clean up spills, and
steps to take in an emergency; maintain spill
control equipment at the work site.
Utilized Crane main hook and Only main hook shall lift or hold the vibro-hammer.  Supervisor in-charge shall
Dropping of load due to faulty lifting Auxiliary hook is intended only for setting of sheet
auxiliary hook complete the necessary
gear or faulty attachment points pile materials. inspection to ensure that the
All lifting accessories shall be certified by third all lifting gears are ready
party. use
Lifting gear/equipment inspected and tagged with
4 4 16 2 2 4
appropriate monthly colour tag.
Utilized tag lines which long enough to keep away
the worker under the suspended load or in the line
of fire.
Use softener (protection pad) to protect the sling
to damage from sharp edge materials.
 Use slings and shackles of the correct SWL for
unloading.
Lifting gear to have the current quarterly color
code displayed.
Pilling operations shall be supervised at all times.
The crew shall be properly trained in pilling
operations.
Make certain personnel are sufficiently trained
with appropriate certificates/ licenses.
When cranes are to be use for driving piles with a
drop hammer or driving piles below the level of the
crane using extended leaders, the distance of the
hammer from the center point of the crane shall
be determined and the distance use to calculate
the crane’s safe working load.
Pile driving methods and safety precautions to be
used.
Stop blocks shall be provided for the leads to
prevent the hammer from being raised against the
head block.
Guards shall be provided across the top of the
head block to prevent the cable from coming out
of the sheaves.
Saudi Aramco Certified and approved Crane  Only competent and trained
Uncontrolled swing of load operators and Riggers with complete prescribed operatives shall allow to
PPEs only allowed to perform the activity performed the activity
Operator sound horn while swinging. 4 4 16 2 2 4
Taglines shall be used to control the single sheet
pile while lifting.
Barricades to be provided in the crane swing area.
Barricades to be provided in the crane swing area.  Supervisor in-charge shall
Under suspended load Ensure no personnel to work underneath the provide necessary
suspended load. requirements to control
Interfacing of work shall be coordinated with the 4 4 16 unauthorized 2 2 4
constructions in-charge and contractor’s issuer.
Banks man shall help to control any unauthorized
entry.
Hard barricade shall be installed around the swing 
Unguarded swing radius radius of the crane.
Warning signage’s shall be installed around the
working area.
4 4 16 2 2 4
Riggers shall ensure that swing radius of the
crane is free from equipments and personnel.
Provide more banks man to control any unauthorized
entry.
 For blind lifts, when using a hand signal all  Constant and proper
Miscommunication between rigger
signalmen shall be clearly visible to a final communication shall be
and operator
signalman, who in turn shall be visible the crane maintained
operator.
All signalmen and crane operator shall be familiar
with and use an established set of universal hand 3 2 6 2 1 2
signal.
Crane operator shall not leave the controls or
crane cabin at any time while the load is attached.
Crane cabs shall be providing maximum
visibility (curtains/clipboards shall not obstruct
the operators view during operation.
Don’t release slings until the load is properly  Only competent and trained
Caught in-between seated. operatives shall allow to
Proper communication between workers to be performed the activity
3 2 6 2 1 2
maintained.
Proper supervision to be provided for the
activity.
Riggers shall ensure web sling shall not touch or  Necessary PPE shall be
Sharp edges bump on the structure to avoid cut of web sling. utilized for the activity
Use softener when lifting the steel structure, 2 1 2 1 1 1
portable cabin or any load that have sharp
edges that can damage the sling belt
Keep away/ distance all bystander and crew of the  Hearing protection shall be
Noise above 85 dB. Generated by activity while the operation of machine is ongoing. provided
equipment Provide earplug and rotation of workers for those
2 1 2 1 1 1
workers engage nearer to the activity that will
directly affect the high noise produce by the
equipment.
Tag lines Avoid holding against wind forces trying to push it  Only competent and trained
Uncontrolled swing of load
out of the line. operatives shall allow to
Provide more banks man to control any unauthorized performed the activity
entry.
Hard barricade shall be installed around the swing 3 2 6
radius of the crane.
Warning signage’s shall be installed around the
working area.
Riggers shall ensure that swing radius of the
crane is free from equipments and personnel.
 After securing load with taglines, stay clear of the  Supervisor in-charge shall
Under suspended load load and well forward of the load. provide necessary
Utilized tag line that is appropriate in length. requirements to control
If it’s necessary to guide the load, stay well unauthorized
away from the wheels or tracks of the crane.
Remain clearly visible to the crane operator
when guiding the load.
Do not walk between the suspended load and
the crane,
4 4 16 2 2 4
Ensure that the lifting area is barricaded off and
appropriate warning signage’s area installed to
inform other worker of the activity.
Interfacing of work shall be coordinated with the
constructions in-charge and contractor’s issuer.
Banks man shall help to control any unauthorized
entry.
Ensure no personnel to work underneath the
suspended load.
Do not wrap the tagline around the hand/ wrist.  Only competent and trained
Caught in-between Wear hand gloves, safety boots and other PPEs, operatives shall allow to
Brief the risk during TBT. 3 2 6 performed the activity 2 1 2
Do not tie knots in the tagline.
Grip the tagline properly to avoid slippage.

Frequency (F) Low Any task that has this risk ranking is generally
acceptable. The work environment and methodology
present minimal risks to personnel
Very Unlikely Possible Likely Very Medium Any task that has this ranking is only acceptable if
Unlikely Likely the risk is as Low As Reasonably Practicable
(ALARP). ALARP assessments should be completed
Risk Matrix by qualified and experience person. Personnel
completing tasks which are in this rank should be
fully aware of the risks which exist and this control
measures put in place to minimize them.
High Any task that has this risk ranking must not be
1 2 3 4 5 completed instead it should be refined or further
control measures put in place to reduce risk.
Negligible 1 1 2 3 4 5
Severity (S)

Minor 2 2 4 6 8 10

Significant 3 3 6 9 12 15

Severe 4 4 8 12 16 20

Catastrophic 5 5 10 15 20 25