Pipeline Construction In Pursuit Of The Zero Accident Project

Pipeline Construction
In pursuit of the “zero accident”
projectproject
Mainline pipeline construction is an industry that requires
specialized solutions to the effective implementation of a
Health and Safety Management System. If a Risky g y
Management Plan is to be effective, it is essential that it be
simple, streamlined, and reinforced with pipeline & right of
way specific solutions that incorporate historic lessonsway-specific solutions that incorporate historic lessons
learned and address the unique nature of the workforce
and the fast paced work methodology.
http://www.pipe-line-safety.com

Rearranging tons of earth; securing working equipment
while performing heavy lifts on extreme slopes; moving
and working heavy equipment on unstable ground;
blasting ROW and then rock ditch; diverting rivers; lifting
and moving tons of materiel over every type of terraina d o g to s o ate e o e e e y type o te a
imaginable, are daunting tasks.
Pulling it off without accidents and losses is aPulling it off without accidents and losses is a
formidable challenge

Much of the equipment used on a pipeline ROW during
mainline construction is unique to the Pipeline industryq p y

Each piece of equipment has it’s own
characteristics, history of accidents and inherent
hazards

Pipeliners are faced with extreme slopes and rugged
terrain

Imagine arriving on the ROW for the first time, amid the fast
paced and seemingly chaotic activity, of equipment and
people afoot, all in constant motion.people afoot, all in constant motion.
How do you identify an unsafe act, practice or condition, if
you are unfamiliar with the equipment, it’s limitations and
the work methodology?t e o et odo ogy
Where will the Caught Between, Struck by, Struck Against…injuries occur next?
It can be a little overwhelming. Your first concern will probably be locating a
safe place from which to observe the action and where you won’t be in the way.
Ind str specific ha ard recognition training is essentialIndustry specific hazard recognition training is essential.

The degree of success or failure of your HSSEThe degree of success or failure of your HSSE
Management System (MS) is measured by the number
of incidents and accidents occurring on your project.

The work is
hazardous strenuoushazardous, strenuous,
and very fast-paced. It
is undertaken at
remote worksites, withremote worksites, with
limited access making
it difficult to monitor to
control

All pipeline projects attract a percentage of itinerant
professionals who are accustomed to being well paid forp g p
their knowledge and skills…

…who have their own culture, are uniquely independent,
and fiercely reluctant to changing long established worky g g g
habits

The workforce and supervisors may speak different
languages and be from different ethnic and religiouslanguages and be from different ethnic and religious
backgrounds, intelligent, but largely uneducated, often
illiterate and intimidated by paper work.
http://www pipe-line-safety comhttp://www.pipe line safety.com

Many of the workers are new to and unfamiliar with the
equipment and work processes and require
ongoing specialized training. As the ROW enters new
areas under changing labor organization or political
influence, the previously trained and nowinfluence, the previously trained and now
competent workforce, will have to be let go and a new
group will replace them, requiring repeated re-training

• Working very long hours, seven days a week,
frequently well into the hours of darkness is afrequently well into the hours of darkness is a
universal practice within the industry. The risks
from all these hazards are compounded, as time
progresses, by an increasing fatigue factor.
• Each morning and often several times a day,
renewed risk assessments must be made. This
requires experienced and competent
supervisorssupervisors.

Inexperienced workers are exposed to a constantly
changing menu of life threatening hazards as thechanging menu of life threatening hazards as the
work progresses along the pipeline corridor and the
worksite ground conditions underfoot continuously
change…

… bedrock, shot rock, boulders, sand, swamp, permafrost,
extreme slopes side-slopeextreme slopes, side slope…
…all present differing and unique hazards during the
operation of heavy equipment, the use of side booms and
cranes for lifting operations and the handling of materielcranes for lifting operations, and the handling of materiel

…and what about the complexity of managing a fleet of
vehicles logging approximately 800,000 miles a month ingg g pp y ,
arguably the most rugged, extreme off-road and
hazardous conditions on this planet, where, at the
wheel drivers are assigned whose driving experience iswheel, drivers are assigned whose driving experience is
limited to driving on horizontal asphalt in an urban
environment

Despite all these seemingly insurmountable
hurdles, an accident free project is achievable. It
h b d b fhas been done before.
There are specific and systemic controls that have
been implemented on previous pipelinebeen implemented on previous pipeline
construction projects that have proven
significantly effective at reducing losses, injuries
and accidentsand accidents
The following slides outline a few suggestionsThe following slides outline a few suggestions
based on those past and proven solutions.

If "Safety First" is your motto, then molding attitudes and
setting an example are your priorities. The first and most
important step which cannot be over-emphasized is to
t bli h li f i ti b t thestablish open lines of communication between the
workers and management, to encourage the worker's
suggestions, and demonstrate that you are receptive to,
and show respect for their suggestions To achieve thisand show respect for their suggestions. To achieve this
you have to gain the worker's respect and trust.
Considering the often large cultural gap separating the rank
and file worker with the manager, this is a complex andg , p
delicate task and probably the single most important
aspect of your HSSE Management System.
Once your workers start talking to you, you are on your way
t d ti d ti i th b f id t dto a dramatic reduction in the numbers of accidents and
incidents. Molding the attitudes of an entire workforce is
achievable. Your yard-stick for measuring success is
how frequently your workers willingly and on their ownhow frequently your workers willingly and on their own
initiative speak out, without fear of reprisal, about
hazards they have identified. As you start to get
feedback from the seeds you planted, it can be excitingy p , g
and very rewarding.

Establishing open lines of communication
between the workers and management will
reduce lossesreduce losses
Empowering the workers to speak out and take action when they see
something that might cause an accident requires:g g q
1. A Client delivered, specialized HSSE behavioral training workshop for
Client inspection staff and incoming Contractor upper management and
site supervisors. Management participation is critical.
2 A high profile project system of rewards aimed at the individual worker2. A high profile project system of rewards, aimed at the individual worker
and contractor supervisors based on the identification of specific and
overlooked hazards, which if not identified could have caused an accident.
It should include a) daily spot awards: caps, t-shirts, coffee cups etc. b)
weekly meetings where certificates and more significant gifts areweekly meetings where certificates and more significant gifts are
awarded, and c) monthly award ceremonies where special recognition of
a worker’s participation is recognized by prizes of significant monetary
value.
3 U il l f f l3. Unilateral enforcement of zero tolerance.
Only with the worker’s cooperation, participation and constant vigilance on the
ROW can a zero accident project be a realityROW can a zero accident project be a reality.

Empowering Workers
Participation by Contractor foremen/site supervisors is
essential
Th k ill f d id if h d if h f i l f h iThe workers will not step forward to identify hazards, if they fear reprisals from their
foreman.
If the Contractor Project upper management buys in, the foremen will too. Financial
i ti k ll t ti t th C t tincentives work well to motivate the Contractor.
Rewards aimed at an individual’s participation can be very effective. Awarding hats and
mementos to the individual works better than recognizing a group and giving out TVs &
VCR M t lk Si ifi t fi i l d f id tif i l k d d iVCRs. Money talks. Significant financial awards for identifying overlooked and serious
hazards send a clear message to the worker of management’s commitment to Safety.

Money, careers and employment are frequently on the line
during the course pipeline projects.
The first time you as a manager allow HSSE to take
second place to schedule, the news will spread through
the workforce like a wild fire Everyone is watching andthe workforce like a wild fire. Everyone is watching and
talking.
This is how the momentum of a carefully implemented
HSSE MS can become undermined. Disillusioned
workers don’t participate. Safety really is an attitude.p p y y
On most projects this is a common failure

Money Talksy
Contractors actions are based on self interest – profiting
financially from compliance with HSSE requirements is
a strong and effective motivational force.a strong and effective motivational force.
– Baseline mandatory HSSE requirements must be
incorporated into the contract.
Withh ldi t f h f– Withholding a percentage of cash from progress
payments, based on results of periodic HSSE
Evaluations and a Performance Monitoring System
– Penalties for non completion of contract on time only
increases the schedule driven nature of a project and
increases the likelihood of accidents when nearing
completion.

Identifying and prohibiting poor practices establishing clearIdentifying and prohibiting poor practices, establishing clear
standards & expectations with the Contractor will reduce
losses
Pipe line construction, as an industry, goes back sixty
years or more. The equipment and the methodology
have not changed significantlyhave not changed significantly.
The same accidents reoccur on one pipeline project after
another The root causes of those accidents are knownanother. The root causes of those accidents are known.
Focusing on the root causes of past loss-events at the start
of a project and establishing standards to eliminate thoseof a project and establishing standards to eliminate those
causes will prevent re-occurrences of those loss events

Lack of supervision is often the root cause of accidents
Due to the multitude of isolated worksites along the hundreds of
miles of right of way corridor, supervision is frequently only
intermittent at many locations.
Buried
gas
pipeline
A clean-up dozer is unsupervised for 45 minutes at the start of a shift. TheA clean up dozer is unsupervised for 45 minutes at the start of a shift. The
project has no clear procedure for dealing with buried utilities crossing the
ROW and enforcement of standards is slack.
The blade snags a gas
pipeline which leads to
this ►

Standards for controlling power line hazards
If the hazards of power lines are not strongly emphasizedIf the hazards of power lines are not strongly emphasized,
procedures established and strictly enforced, accidents will occur.
A supervisor was not informed about a low power line crossing
the ROW up ahead. The power line project procedure lacksthe ROW up ahead. The power line project procedure lacks
adequate controls and is loosely enforced. It does not require a
pre-job survey of access roads to identify power line hazards,
nor other controls which are necessary to manage this extremenor other controls which are necessary to manage this extreme
hazard. The supervisor sends an excavator out to the shoofly
for loading out…

The operator had not been trained what to do to
t li f ll i t t ith li Hstay alive following contact with a power line. He
attempted to get off his tractor and was
subsequently electrocutedsubsequently electrocuted

SIDE BOOMS
O t d Sid bOperator and Side boom
mechanic competency Assurance
Why is it necessary?

Establishing clear controls and standards with the
Contractor at the start of a project will prevent re-
occurrences of these accidents.
These two accidents were completely avoidable If the Client hadThese two accidents were completely avoidable. If the Client had
established standards and enforced them, these accidents would not
have occurred.
It is very surprising how quickly a side boom can lose stabilityIt is very surprising how quickly a side boom can lose stability

On constantly changing worksite ground conditions:
bedrock, shot rock, boulders, sand, extreme slopes, side-, , , , p ,
slope… side booms perform 95% of all critical lifts on a
pipeline construction project. The safe operation of a side
boom in these conditions requires skilled and specializedboom in these conditions requires skilled and specialized
tradesmen: Operators and mechanics, who possess a set
of skills and experience very different from a crane operator
d d b kh h iand dozer or backhoe mechanics.
Moving heavy suspended loads, and working on unstableg y p g
ground, exposes the operator and his ground support crew
to a constantly changing menu of life threatening hazards.
Exposure to the changing weather and long shifts sevenExposure to the changing weather, and long shifts, seven
days a week, often well into the hours of darkness, further
compounds these hazards by the addition of fatigue and
di ll h i d ditiradically changing ground conditions

Poor Practice
Crowning booms at Tie-in
Impossible for operator to gauge strain on load line. Load line failure
is sudden an lethal

Is this unsafe?
Poor preparation of ROW
Didn’t prepare ROW to get boomsDidn t prepare ROW to get booms
close enough for the lift – relying on
excavator buckets to restrain
counterweights to increase lifting
No Construction Road, no swamp
mats
power beyond Caterpillar
specifications

Good Practice
U f tUse of swamp mats
Note: poor practices
are not identified in
this slide

Poor Practice
Excavator buckets are used to increase the side boom’s lifting power beyond
Caterpillar specifications Often the reason is that the Contractor has notCaterpillar specifications. Often the reason is that the Contractor has not
mobilized enough side booms to perform the work safely, or the foreman is
inexperienced. It is a bad habit and dangerous practice that is very common
and almost universally accepted in the industryand almost universally accepted in the industry.

Restraining counterweights subjects a lifting operation to the
potential of sudden and catastrophic failure

Poor Practice
Load line
two
blockedblocked
Boom lineBoom line
tight
This operator was carrying his load high and close to
the Boom

Poor craft training
Lack of operator knowledge of Cross Steering,
a light rain shower and a clay ROW
How can a side boom flip upside down, crush and kill
the operator when descending such a slight grade ?

Poor Practice – Boom line under
load should never touch the bull horns
Boom Line
Breaks on
contact with bullload should never touch the bull horns contact with bull
horns
Sudden failure of boom.
Boom drops onto workers at
tie in.

Get to know the Side Boom Tractor
95% of all lifts are performed with the side boom
A very high percentage of ROW hazards are
associated with it use.
Newer Hydraulic “High
Track” Side Boom Tractor
Older conventional 500
series Side BoomTrack Side Boom Tractor series Side Boom
Tractor

The older conventional series side boom tractors
are recognized by their rear drive sprocket andg y p
“oval track” profile
Loss of Engine on a steep
slope = Loss of Control
These tractors are equipped with a manually applied, mechanical
Oval
track
profile
y
braking system supplemented by a hydraulic booster.
It is common practice in the pipeline industry for side booms
operators to have their brake bands backed-off, beyond Caterpillar
specifications.
On a steep slope, in the event of an engine failure, if the operator
does not apply the brake before the engine stops or immediately
afterwards, before the tractor gains momentum, the tractor’s manual
brakes will not stop the tractor from taking off uncontrolled down the
slope It will not stop until it comes to level ground or hits otherslope. It will not stop until it comes to level ground or hits other
equipment or vehicles in it’s path.

Hydraulic Series side boom tractors are
recognized by their rear drive sprocket andecog ed by t e ea d e sp oc et a d
“high track” profile
Th lifti f th t
Loss of engine on a steep
The lifting power of the more recent
high track hydraulic side booms, is
transferred from the engine to the cable
drum by way of a hydraulic pump,
slope = breaks engage in
“fail safe” manner
y y y p p,
hydraulic motor and a couple of valves.
The newer high track hydraulic group
are reliable though not as
maneuverable as the first and do notmaneuverable as the first and do not
require the same level of skill to
operate.
Advantages
High
•Require less operator training.
•Almost eliminates the possibility of
draw works failure (catastrophic
dropping of load)High
Track
dropping of load)
•Track brakes lock on engine failure

Boom line
brake
Steering
Clutches

Standard
“Double Dogging” Side Boom TractorsDouble Dogging Side Boom Tractors
parked with booms up should be “double
dogged” which ensures that the boom or
load will not fall unintentionallyload will not fall unintentionally

Standard
On steep slopes ensure operators stay onp p p y
their tractors
If the operator bumps the levers, getting out of his seat, the load will release
unless the levers are set in the locked out position. In winter, bulky clothing can
catch the controls on the operator’s left side and put the tractor in gear. The
operator then inadvertently steps onto the moving track The track catches andoperator then inadvertently steps onto the moving track. The track catches and
sweeps his foot sideways, he stumbles and his body is either sucked under the
cross bar (gear in forward) or (gear in reverse) he falls to the rear, and his tractor
runs over him - this usually ends in a fatality.

Standard: Equipment maintenance
Preferred Practice
Cross spooling damages
wire rope & invites
i t f ilequipment failure
Poor practice

Standard: Equipment maintenance
If you see a boom laid down for maintenance
There are two wedge socket terminals on the
If you see a boom laid down for maintenance
check the wedge sockets
There are two wedge socket terminals on the
side boom’s lifting rigging. Check the wedges
in both the boom and load line wedge sockets
The boom line raises and
lowers the boom. A point of
Side boom load line blocks with
similar wedge socket terminal end
failure can be at the wedge
socket terminal on the top
boom block
similar wedge socket terminal end

Maintenance Standards should never be taken for granted.
Contractor management competence & integrity should
not be assumed It should be verified
The cable that failed was steel
cored & ¾ inch. Two months
ft i t ll ti it d
not be assumed. It should be verified.
V-shape
ddl f after installation it passed an
inspection. Four months after
that it failed. The cable parted
just inside the terminal wedge
saddle of
home made
wedge
caused
failure here
just inside the terminal wedge
socket. Only extraordinary luck
prevented a fatality in this
incidentincident
Wedge sockets and wedges
on Caterpillar side boom
tractors are machined parts
and critical in the lifting
rigging.

Contractor maintenance assurance and assurance of
competency of mechanical staff is a very important.
Auditing Contractor equipment before mobilization in countryAuditing Contractor equipment before mobilization in-country
will reduce accidents and incidents on your project.
Caterpillar
Home made
wedge
identified in
wedge side boom
load line
wedge socket
Short cuts in Contractor maintenance should be anticipated. Side booms
should be closely looked at prior to and after mobilizationshould be closely looked at prior to and after mobilization.

Standards on Steep Slopes
Secure equipment on Side booms should use
hard bar harnesses noslopes with proper
harnesses
hard bar harnesses, no
attachment to belly
hooks

Standard - Equipment Mobilization
Mobilization of equipment for operation on steep slopes with “StreetMobilization of equipment for operation on steep slopes with Street
Pads” designed for operation on horizontal asphalt should be prohibited
“Street Pads” –
three grouser
bars

Standard for equipment tracks
Three Grouser “street
pads” full of mud
Single grouser pads
i t fpads – full of mud appropriate for
boulder-strewn steep
slopes

Standard - Pipe Support
Serious debilitating injuries and fatalities from poorly
supported pipe joints & sections are common.
This type of pipe support is unacceptable
It is necessary to establish and strictly enforce a uniform
standard in building skid cradles, crotches and slides

The skids must be a hard wood of minimumThe skids must be a hard wood of minimum
specific dimensions

Poor Practice
Avoid this type of
construction construction 
This… …becomes this

The pipe sections expand/lengthen in the sun during the
day and contract/shrink in the cool of the night, causing
significant longitudinal movement on their skid supportssignificant longitudinal movement on their skid supports.
Skid supports have to be built and spaced correctly to
accommodate that movement.
Improved but
not optimum
Practice Skid
Good Practice:
Skid Crib. Sand
bags are not the
best choice of
Crotch best choice of
chock

Good Practice
coaching may be necessaryg y y
Note that the
weight of the
pipe section onpipe section on
the top skid in
the “V”…
…locks the
dl t thcradle together
minimizing
casual theft of
wood by localsy

Mainline sections should be crotched every 4 – 6 joints and
more frequently at loose ends. Serious debilitating
accidents on pipe gang caused by pipe movement due toaccidents on pipe gang caused by pipe movement due to
collapsing skid supports, coming off the lose end of a
section are not uncommon
Note: A disgruntled local with a pocket knife can in a few
minutes undermine the stability of this pipe section causing
a serious hazarda serious hazard

Careful planning of the length of sections and incorporation
of loose ends is also important…p
There are the consequences for poor practices

Standards at Crossings
Procedures and controls are necessary at Road
d R il C i id id dand Railway Crossings to avoid accidents and
protect the asphalt road surface

Standards at CrossingsStandards at Crossings
Lack of Adequate Controls at Railroad Crossing
can Damage Rails which will Derail a Traing

Rails must be protected. Specific
t d d t t t il t bstandards to protect rails must be
established

Standards at Crossings
Excavating (daylighting) pressurized pipelines
Strict adherence to aStrict adherence to a
detailed procedure is
required for excavating
f i tiliti iforeign utilities crossing
our ROW.

Standards for Excavations
Preparation of excavations for worker entry arePreparation of excavations for worker entry are
critical

Standard for fencing off open excavationsStandard for fencing off open excavations

Bell Hole Standard
E th t th ld h t i t dit h idEnsure that the welders have an escape area cut into ditch side
wall and floor of trench, in the event of lateral or vertical pipe
movement.

Bell Hole StandardBell Hole Standard
Good side wall
cut back however
slope isp
inadequate for
safe worker entry

If the pipe moves laterally,
suddenly and violently two
Mainline ditch wall cut back for
safety of workers
workers will be crushed

Good side
wall cutwall cut
back but
ditch slope
iis
inadequate

Hoisting Standards
Poor Practice
This poor practice is very difficult to monitor and control along a pipeline
corridor It results in many accidents Lifting with excavator buckets iscorridor. It results in many accidents. Lifting with excavator buckets is
acceptable using buckets with certified and approved factory eyes and
hooks. Control can be achieved by requiring the Contractor to identify each
bucket with clear markings - weld on identification tags or numbers andbucket with clear markings weld on identification tags or numbers, and
carry on each machine the bucket’s certification. The contractor site
supervisor must ensure this documentation, including the lifting chart for
excavator is in the cab of each excavator, for cross reference/verification by, y
Client inspection staff.

Good Practice
Factory and weld-on eyes and hooksy y

Poor Practice
Potential Crush Injury – Front end set in tractorPotential Crush Injury Front end set in tractor
Hooking up a Choker Belt requires positioning of
workers on both sides of a pipe joint, and one worker in
the Danger Zone between two joints.

Workers must at all times avoid placing themselves
between two joints.
Crush injuries of workers between two joints are not uncommon in this
industry. Potential Causes & what to look out for:
Earl morning frost and the operator does not arm his break bands to• Early morning frost and the operator does not warm his break bands to
remove frost/ice. The boom falls outward
• If the operator doesn't latch his boom, as he picks up the load line the
boom comes out. If the operator reacts to seeing his boom swing out,
by latching the boom brake, the load line will jerk the closest pipe joint
toward the adjacent joint crushing any worker in between.
• Poor boom maintenance has already been identified with respect to this
set in tractor
• Operator accustomed to live draw works is put on a 583 R with• Operator accustomed to live draw works is put on a 583 R with
hydraulic draw works (which has no manual brake). If he has not set
the safety latches and he bumps the free-fall lever, a suspended sag will
drop and flop over against the adjacent pipe jointdrop and flop over against the adjacent pipe joint.
• Failure of boom line - loss of boom head pin, home made wedges etc.

Poor PracticePoor Practice
Why should workers not ride on skid sloops?
Note side slope on ROW
y p

What is wrong with this picture?at s o g t t s p ctu e

What is wrong with these pictures?What is wrong with these pictures?

What are these men anticipating? What is
the poor practice that created this hazard?

When lowering-in a pipe string under a utility crossing or
flume pipe, in a deep & unsafe excavation, how do youflume pipe, in a deep & unsafe excavation, how do you
attach a sling to the leading side boom’s load line hook,
without having to sending a worker into the unsafe ditch?

Poor Practice
Avoiding this situation requires changing habits, planning and
incorporating an alternate strategy in the method statement
for creek crossings.Hazard:
The solution to poor
planning invariably
is to take a chance
and put a worker atand put a worker at
risk. Sometimes you
get away with it and
sometimes you don’t Workers in
unsafe
A worker just
climbed
under the
unsafe
sloughing
excavation
Placing workers in unsafe, sloughing ditch must be avoided. No workers should
be allowed to cross the ditch on the elevated flume pipe, nor climb under the
fl i t f d th h th lli i h li Th th d t t t h ld
under the
pipe here
flume pipe to feed through the pulling winch line. The method statement should
include mitigation measures to avoid such hazardous practices

Common accident on the bending crew. On each
ll f th b di hipull of the bending machine
Safety
steel toe
saves
foot
Worker
inadvertently
places toes
under tongueunder tongue

You see an operator checking his fuel tank
I thi f ?Is this safe?
Common hip crush injury. Operator’s hip touches
counterweight lever Counterweights creep up increasingcounterweight lever. Counterweights creep up increasing
pressure on the lever which speeds up the counterweight
withdrawal. Operator is crushed between the tank or ROPS
d t i htand counterweight.

You are a lower-in inspector observing the
Contractor lower in a section over the crestContractor lower in a section over the crest
of and down a steep slope
A very serious accident is about to happen. Can
you see what is wrong?y g

What Went Wrong?

Lack of operator skill, poor engineering and
gaps in the steep slope method statement
caused this accident

It takes only a moment of inattention to roll a side
boom. Side boom operator competencyboo S de boo ope ato co pete cy
assurance is important on every project

What Went Wrong?What Went Wrong?

With schedule driven pressures of a lump sum contract, it is easy to
lose control and get squeezed into a corner where the cost of
backing up and starting again is perceived as too expensive and/orbacking up and starting again is perceived as too expensive and/or
hazardous, and where taking a shortcut is too tempting for both
Contractor and Client construction delivery managers
Hazards: The solution
1. Placing workers
under and on the
ditch side of
Hazards:
to poor
planning
invariably is
to take asuspended
sections
2. Using excavator
to take a
chance and
put a worker
at risk.
buckets on
counterweights to
increase load
capability of side
Sometimes
you get
away with it
andcapability of side
boom
The method statement should include
and
sometimes
you don’t
Worker cleaning
mud off pipe and
fixing holidays
in coatingThe method statement should include
mitigation measures to prohibit and avoid
such hazardous practices
in coating

Potential Accident
Avoiding a crush injury against the headache rack is about sequence of
h k l t l i f th lki d k i ti ti i f lifthook placement, clearing of the walking deck, communication, timing of lift
and coordinated movement of tractor and truck. If side boom lifts the pipe
joint prematurely, it can rock forward into the headache rack, crushing
anyone in it's path.y p

After Equipment has been mobilized and is
in-country it may be too late and tooy y
expensive to make changes
Fleet of personnel carriers has
been mobilized
Hazard Identified : Personnel
i hi h t d d
This accident was
identified and anticipated.
There was not a long wait
to see the resultingcarriers high centered, and
unsuitable for steep slopes
and unstable in rough terrain
to see the resulting
accident

Poor practices and substandard Contractor
equipment maintenance lead to seriousequipment maintenance lead to serious
accidents

Equipment Standards
Full height headache racks are recommendedFull height headache racks are recommended
on stringing trucks to protect the driver from
sudden deceleration

Equipment Standards
Hoe Rock Hammers require heavy wire mesh screensHoe Rock Hammers require heavy wire mesh screens
fitted, facing forward and outside of the operator’s glass
window. This screen is essential to protect the operator
f i b k j tilfrom airborne rock projectiles.
Operators struck and injured by rock projectiles is not uncommonOperators struck and injured by rock projectiles is not uncommon

Good PracticeGood Practice

Equipment Standards
Test heads should have a pre-fabricated grating/platformp g g p
incorporated into their construction for workers to stand on
when performing their work: hammering wrenches on flange
bolts rigging squeeze iron and compressor hoses and duringbolts, rigging squeeze iron and compressor hoses, and during
blow downs. In winter, de-watering intensifies the hazards with
ice build up and slippery conditions.
T t H d ith f b i t d f i h tl fTest Heads with pre-fabricated frames are inherently safer.

Pipe Storage Standard
Pipe joints stockpiled in parallel configuration onPipe joints stockpiled in parallel configuration on
side hills , creates a potential mid-section crush
injury hazard to any workers caught between
th j i tthese joints
At every start
joint, roadROW side hill slope
section setup
and temporary
pipe stockpile
even a slight
needs to be
corrected during
Grading Operations
even a slight
side hill creates
a serious risk…http://www.pipe-line-safety.com

Power line support structure Protection
Steel footings of towers supporting high voltage powerSteel footings of towers supporting high voltage power
lines immediately adjacent to traveled routes of project
vehicles should be protected with berms or concrete
b ibarriers.

Power line hazard management
Guard Posts and rope/buntingp g

End Prep Shavings
Shavings are often left overnight orShavings are often left overnight or
longer, on the ground or in sacks
along the ROW. Often the bigger
h i d d th
Poor
Practice
shavings are recovered and the
smaller pieces left on the ground
and blown by the wind intoy
adjacent property. This presents a
hazard to workers, the public and
livestock Cuts from metallivestock. Cuts from metal
shavings are frequently debilitating
injuries.
Use of a drop cloth and immediate
removal from the ROW is
recommendedrecommended
Improved Practice http://www.pipe-line-safety.com

Management of Induced Voltage
Pipe joints and pipe sections which run parallel to, crossp j p p p
under or lie with 500 meters of an electric power
transmission line are subject to an electrostatic and
electromagnetic field Alternating current is induced intoelectromagnetic field. Alternating current is induced into
strung pipe and welded pipe sections, which may result in a
potentially lethal hazardous condition.
Procedures and specialized, trained and qualified labor are required to
mitigate this hazard

Good PracticeGood Practice
Good ditch slope, ladder, mats to supportp pp
booms, compressed gas bottles lifted in cage,
laborer unhooking factory swaged wire rope
sling to lift concreted section for tie insling to lift concreted section for tie in.

Good Practice
On Stringing the use of the Vaculift mitigatesOn Stringing, the use of the Vaculift mitigates
many of the risks associated with the use of
slings. All workers standing clear of dangerg g g
zones.
Regular Scheduled maintenance is required and critical to the safe use of this
equipment. There is a maximum altitude at which this equipment can safely be
dused.

Good Practice – Hazard Warning SignsGood Practice Hazard Warning Signs

It can be done safely.It can be done safely.

Pipeline Construction In Pursuit Of The Zero Accident Project

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Andere mochten auch

Andere mochten auch (8)

Ähnlich wie Pipeline Construction In Pursuit Of The Zero Accident Project

Ähnlich wie Pipeline Construction In Pursuit Of The Zero Accident Project (20)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)

Pipeline Construction In Pursuit Of The Zero Accident Project