Technical & Safety Guides for Survey Work at Fabrication & Construction Site

GENERATIVE HSSE CULTURE Technical & Safety Guides for Survey
Work at Fabrication & Construction Site

HSSE Awareness

Mohd Nazri B Masrom (Geomatics, PCSB)
Mohd Syahrulsyahrin B Hamdan (Surveyor, MMHE)

June 2021

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TABLE OF CONTENTS

1 Dimensional Control (DC)
2 Know Who is Survey Team
3 The Life of a DC Surveyor
4 Surveying Instruments & Their Uses
6 Observe Your Surrounding & Work Environment
7 Survey Safety Tips
8 Survey Control Points
9 Maintain Good Body Posture
10 Back Injury Prevention and Proper Lifting Techniques
11 Be Mindful When Working at Height
12 Stay Safe & Follow S.O.P
13 Pre-Survey Safety Planning
14 Hazard Identification and Risk Control
15 Survey as safety tools during critical operations

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[Objectives]

This eBook is intended to provide information on surveying work,
safety best practices and key information needed to mitigate and
reduce risk when performing field surveying work.

GENERATIVE HSSE CULTURE is doing the right thing right
all the time, even when no one is watching

This is to be used to create and increase awareness among workers and
site team on surveyor’s roles, surveying instruments used and safety
precaution pertaining to survey activities at fabrication and construction
site.

Want this eBook on your phone or laptop?

Scan with your smartphone to read this eBook

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Specialist survey technique Dimensional
based around the
application of traditional Control (DC)
survey principles and
equipment, but applied to SurveyThe aim is to accurately
industrial fittings such as measure the structure/items
pipes, vessels, new to ensure that everything fits
platform, rigs, and giant first time without any
pre-assembled modules. unnecessary rework, and to
reduce the need for hot work
(welding).

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Know Who is Lead DC Surveyor

Survey Team • Oversee overall dimensional
survey activities at site.
DC Surveyor
• Manage inspection and test
• Perform site measurement and data plan to monitor the
processing. construction of all steel
structures elements on
• Prepare DC survey drawing and substructure and topside
report. erection.

• Analyze survey data, result, and sign • Analyze survey result, review,
DC survey report. and sign DC survey report.

QA/QC Surveyor

• To QC/cross check and ensure all dimensional control
surveys scopes of work are performed
in accordance with code, standards,
and approved procedure.

• Monitor, intervene and report quality
issue associated to non-conformance
and quality alert.

Survey Assistant

• Assist and support surveyors
in field surveys

• Assist surveyor in preparing survey
drawings and notes.

• Maintain reports and records in relevant
filing and database

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THE LIFE OF A DC
SURVEYOR

1 Use mathematics and engineering

to calculate and determine
dimension and angle

2 Use highly technical electronic

equipment and computation
software

3 Provide solution and appropriate

corrective action to engineering
and site team

4 Prepare sketches, drawing and

notes, and perform electronic data
collection

5 Ensure compliant with standards

and fabrication tolerances

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Total Station

Electronic/Optical instrument used

for surveying work

Be Careful

Tripod Don’t disturb or hit this total station

Portable three-legged stand to This is the price
support Total Station that you need to pay if broken

Surveying Survey Prism
Instruments Used to reflect the Electronic Distance
Measurement (EDM) laser beam from a
& total station
Their Uses

Class 3R lasers are considered safe when handled carefully
Do not deliberately look or stare into the laser beam
A Class 3R laser is not a skin or materials burn hazard.

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Surveying Instruments

& Their Uses

Level Instrument
Optical instrument used to measure
height and determine height differences
between two points

Digital Level Levelling Staff
Used with a levelling instrument
Auto Level to determine the difference in height
between points. It cannot be used
without a levelling instrument

Be careful
Don’t disturb or hit this equipment

This is the price that you need to pay if broken

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Observe Your
Surrounding
& Work
Environment

How Are You Doing Your Part?

• Do not steps on the piping, mechanical or electrical instrument during survey
operations.

• Barricade the survey total station area to avoid interruption from other
personnel working on the same location.

• Switch off the red laser beam pointer of the total station when not in used to
avoid unnecessary contact with other workers working on the same area.

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Survey Safety Tips

1 Always use latest drawing revision to avoid dispute and

wrong information.

Control station shall be clearly numbered to avoid possible

2 confusion during computations, or during subsequent surveys

by other surveyors.

Care should be taken to ensure the total station is footed

3 correctly and unable to move or slip. Neoprene or magnet can be

used to minimize slip and vibration effect.

Avoid unstable or loose structure contact when selecting

4 location for control station spread.

The condition of the structure needs to be assessed for corrosion

5 or oil / water coated as these can have a detrimental effect on

the survey results especially when using reflectorless
measurement.

6 Avoid survey station setup under suspended load or crane

moving path.

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Control points are used to establish durable,
sustainable reference points to be used as the basis for
and throughout a project duration

Once the control points have been established, all
subsequent survey work adhering to the control survey
will be uniformed and seamless

Survey
Control
Points

Please do not remove, spray, or relocate when
you see sticker or marker like this at site

Each point has x, y, z coordinate Discuss with surveyor if relocation of
control point is really required due to
site critical activity

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Maintain Good
Body Posture

Good posture during survey works helps in the following ways:

• Keeps bones and joints in the correct position (alignment)
so that muscles are being used properly.

• Decreases the strain on the ligaments in the spine.
• Fewer headaches
• Increased energy levels
• Less tension on shoulders and neck
• Increased lung capacity
• Improved circulation and digestion

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Back Injury Prevention and
Proper Lifting Techniques

Back injuries can have serious, long-lasting effects on your health and ability to work.

Use Correct Lifting Techniques

1. Individual Lift
• Use your legs to lift, keep your back straight and keep the object

close to your body.

2. Team Lift
• When lifting objects heavier, ask for assistance and use a team lift

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Potential Fall Distance Diagram Be Mindful

Open When Working

at Height

Fall Hazards

The following are examples of fall hazards.

Take appropriate precautions and follow
site-specific safety requirements.

• Unprotected sides or edges of a
walking or working surface.

• Scaffold/working platform that do
not have the strength and structural
integrity to support or yet to be
inspected.

• Falls from elevation to lower levels.
• Falls through floor openings.
• Falls through the floor or surface

(floor/surface collapses).

Fall Protection

• Fall protection is required when
working at heights of 2 meter or
higher.

• Guardrails, safety nets, and
personal fall arrest systems must
be inspected prior to each use.

• Use double lanyard safety body
harness

• Assess or calculate potential fall
distances as part of job pre-
planning.

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Stay Safe &
Follow S.O.P

1. Use walkie talkie as communication device at
site or limit close contact with others by
maintaining a safe distance of at least 1 meter.

2. Wearing mask over nose and mouth to prevent
spreading the virus.

3. Keep in-person meetings (including toolbox talks
and safety meetings) as short as possible, limit
the number of workers in attendance, and use
social distancing practices.

4. Appropriate cleaning practices i.e. washing hand
frequently with soap and water, using alcohol-
based hand sanitizer, sanitizing survey
equipment and workstation frequently.

5. Whenever possible avoid face to face meeting
and use virtual platform for any work-related
discussion.

6. Limit casual (social) conversations that normally
occur at work.

7. Notify your team leader and stay at home if you
have symptoms.

8. Limit equipment or tool sharing if possible.

Play your part.
Stop the spread

of Covid-19.

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Pre-Survey Safety Planning

You should know the location or focal person in-charge of the following:

First aid kit
Emergency action plan

Safety officer focal
Communication Plan

Mustering station

Supervisor in-charge of the area

What Should You Do?

• If you are not feeling well and have any personal health condition that could
result in an emergency, notify your team leader.

• Inform your team leader or co-worker about your survey location and
duration.

• Observe and determine if there are other site work activities that could
endanger your survey work.

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Hazard Identification and Risk Control

No. Activities/Hazard Consequences Risk Control
1 Driving/Riding to the work site Car/Motorcycle accident
• Pre-departure check carried out on vehicle
2 Walking, surveying, and recce at site Twisting ankles and knees, • Comply with all state and site road laws
(Slips, trips and falls) impact injuries • Use familiar routes

3 Working in hot weather condition Dehydration, heat • Avoid obvious hazards such slippery surface,
exhaustion, sunburn loose structure, and uneven ground

4 Surveying and data record Risk of getting data lost • Remove hazards when possible
• Carry equipment in backpack to free hands
5 Manual handling of survey instrument Drop and asset damage
• Maintain hydration by ensuring adequate
6 Working near main pathway or Exhaust dust causing eye and drinking fluids and breaks
roadside respiratory irritation,
collision, and impact injuries. • Clothing – proper PPE and face/neck cover
Equipment damage • Encourage regular use of a sunscreen on any

7 Working near wharf, on the barge and Man overboard, equipment exposed skin
quayside area damage • Use communications devices i.e. walkie talkie,

8 Working at height Falls, impact injuries and handphone to ease communication and
equipment damage reduce survey time at open location

• Check and ensure initial setup, file name and
data record are correct

• Immediately download the data using pend
rive after complete survey task

• Use field sheet or drawing to record critical
information

• Assistant requested when required
• Rotation and breaks for repetitive work
• Use correct manual handling techniques

• Eliminate or minimize the need to work near
main pathway or roadside

• Use mask, safety glass and face cover
• Barricade survey equipment perimeter or use

survey assistant as watcher

• Know the boundary of survey area and always
remain within them

• Check weather forecast especially during
strong wind and monsoon season

• Buddy system (work in pairs)
• Wearing work vest

• Avoid working at height where it’s reasonably
practicable to do so

• Use safety body harness (double lanyard)
when working higher than 2 meters.

• Use non-contact/reflector-less survey function
at out of reach location

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1. Heavy Lifting & Erection

• Verify all critical lifting points
position and orientation i.e. pad
eye, trunnion, and support for safe
lifting operation.

• Perform clash check to ensure no
hard clashing with existing
structure or pre-installed
components.

2. Weighing

• Monitor topside levelness during
weighing to establish good
horizontal center of gravity (COG)
before load cells reading from the
weighing controller can be
recorded.

• Correct COG determination from
weighing is crucial as data will be
used to finalize lifting configuration
for offshore installation.

3. Load Out & Cross Over

• Monitor skid beam, transporter, and barge
levelness during load out and cross over.

• Monitor structure alignment during
skidding operation.

• Determine and verify accurate grillage and
stopper position for safe and smooth load
out.

• Tidal monitoring for safe clearance and
ballasting operation.

Survey as safety tools

during critical

operations

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If you have any queries, opinion, or suggestion, please contact us at:
Email: [email protected]
Phone: 013-608 7500
Email: [email protected]
Phone: 017-799 5935

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