PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
METHOD STATEMENT
FOR
PETRONAS GAS BERHAD LINE CROSSING
ENGINEERING, PROCUREMENT, CONSTRUCTION AND
COMMISSIONING OF PROJECT NUTMEG FOR PT2SB AT
PENGERANG, JOHOR DARUL TA’ZIM
PACKAGE :
TANK FOUNDATION, BUNDWALL, PIPE SLEEPER & PIPE SUPPORT
FOUNDATIONS, LOADING PUMP STATION (LPS), ROAD & DRAINAGE AND
OTHER MISCELLANEOUS CIVIL WORKS
YOUR REF. :P
- DC2202/80.40K/NSS/LOA
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
CONTENTS
1.0
INTRODUCTION
2.0
MATERIAL
3.0
EQUIPMENT & MACHINERY
4.0
PROCEDURE
4.1
PREPARATION WORK BY REMOVING EXISTING FENCE PGB AND
TRIM OFF GRAVEL UP TO LEVEL
4.2
REINFORCED CONCRETE WORK FOR SPREADER FOOTING, CROSS
OVER CONCRETE BASE, RAMP AND HEAVY DUTY SLAB COVER
4.3
RE-ATTACH EXISTING FENCE AND MAKE GOOD OF SURFACE
5.0
SAFETY ASPECT
6.0
HAZARD ANALYSIS
7.0
APPENDIX
7.1
APPENDIX A – LAYOUT FOR PGB LINE CROSSING
7.2
APPENDIX B – SECTION DETAIL FOR PGB LINE CROSSING
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
1.0
INTRODUCTION
1.1 This method statement describes the method and procedures for doing roadwork for
PGB Line Crossing at Nutmeg PT2SB.
1.2 This method statement should make reference to –
a) Related Code of Practice
b) Dialog’s project specification
c) Site clearance drawing
d) Other related documents
2.0
MATERIAL
a)
b)
c)
d)
e)
3.0
Sand from Dialog stockpile
Crusher run
Concrete G35N
Reinforcement Bar
BRC A10
MACHINERY & EQUIPMENT
a)
b)
c)
d)
e)
f)
g)
h)
i)
4.0
Backhoe
Paver machine
Dump truck
Roller compactor
Tandem roller
Plate compactor
Poker vibrator
Water pump
Survey equipment
PROCEDURE
4.1
Preparation work by removing existing fence PGB and trim off gravel up to
level
4.1.1 Apply permit to work.
4.1.2 Manually trim and cut existing fence according to width of new road.
4.1.3 Roll chain-link to side of fence post. Remove fence post and store at temporary
storage.
4.1.4 Doing trial pit to identify level of existing gas pipeline by manual digging.
4.1.5 Then, marking spreader footing location and excavate by using
backhoe/manually up to level.
4.1.6 Trim off excess gravel up to level of cross over concrete base.
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
4.2
Reinforced concrete work for spreader footing, cross over concrete base,
ramp and heavy duty slab cover
4.2.1 Base preparation
1) The sub base material shall be hard, durable and clean. It shall be granular
material and shall be free from organic material, clay balls, and any other
deleterious substances.
2) The materials will be delivered to the site by tipper lorries and spread and
leveled by means of a back pusher for the full width of the road. The material
shall be filled and compacted to the required thickness as specified in the
drawing.
3) Compaction of the sub base layer shall be carried out by using vibrating roller
compactor to achieve relative dry density as per specification.
4.2.2 Formwork
1) Plywood & plastic formwork is using for all structure. All the formworks shall
comply with approved construction drawing and the given specification.
2) The formwork is to be constructed in such a manner that it must be able to
support the weight of the fresh concrete. Deformation must be within permitted
tolerance.
3) Tolerance limits for formwork:

Variation from the plumb in 2.50m is +/- 5mm.

Variation in the thickness of slabs and walls is +/- 6mm.
4) Design and erection of formwork shall take into consideration of impact loads
apart from horizontal and vertical pressure during placing of concrete.
5) For cleaning purpose to leave temporary cleaning opening.
6) The forms shall be sufficiently tight to prevent leakage.
7) The forms shall be cleaned and applied with approved release agent (form oil)
4.2.3 Reinforcement Bar
1) Reinforcement can be fabricated into a variety of shapes that can be used to
construct member of any configurations.
2) Reinforcement should comply with BS4449. Different type of reinforcement
may be used in the same structural member. Generally, minimum yield point of
bars shall be as follow:
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM

R = Mild round bar, fy = 250N/mm2

T = High yield type 2, deformed bar, fy =460N/mm2
3) Reinforcement bars shall be locally bent to avoid interference with other bars.
4) The reinforcement must be at all-time free from mud, oil or other non-metallic
coating that adversely affect the bonding capacity.
5) The placement of reinforcement shall be strictly based on the approved
construction drawings and shall be secured against displacement and
deformation with tie wires.
6) Where parallel reinforcement is placed in two or more layers, the bars in the
upper layers shall be placed directly above those in bottom layer.
7) All laps length shall be 40 x Diameter. Laps shall be provided at the locations
shown on the drawings.
4.2.4 Concreting work
1) There will be 2 times concreting works. First concreting for base of drain.
Second concreting for drain wall. If the drain wall height is more than 2m, there
will be 2 times cast.
2) Concrete shall not be placed until mix designs are submitted to and approved
by the engineer, concrete grade to be followed as specified in the drawing.
3) Slump shall be 75mm ± 25mm for normal mix. Slump test shall be made in
accordance with BS 1881.
4) No concreting shall be placed until the steel reinforcement and formwork has
been checked and approved by the Engineer and QC (IPT).
5) To avoid of cold joint concrete shall be continuously pouring until completion.
6) If cold joint begin, bonding agent (Estobond P) shall be used for concrete repair
system. All repair areas should be defined by a 10mm saw cut to avoid “feather
edging” of the repair mortars. Pre-soak the repair zone with copious amounts of
clean water preferably for a minimum of 1 hour prior to application of the
Estobond P. Remove excess surface water with a stiff brush.
7) The compressive strength of concrete is determined by crushed cube test. Cube
test shall be carried out at 7 and 28 days after casting or as requested by
engineer.
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
8) The level will be control by putting the leveling peg and finishing by skill
levelling workers.
9) To avoid excessive segregation of the fresh concrete, special precaution should
be taken. e.g. extending the hopper by means of a pipe or sock; and the
concrete should not be allowed to fall freely for more than about 1.00 meter.
10) Extreme care must be taken as not to alter the location of starter bars which
must be properly secured during casting.
11) All concreting shall be thoroughly consolidated during placement and shall be
thoroughly worked around the reinforcement fixtures by using a sufficient
number of vibrators/ pokers.
4.3
Re-attach existing fence and make good of surface
4.3.1 Mark and manually dig to lay fence post.
4.3.2 Roll back chain-link to middle of fence post. Tie-up and strengthen the chainlink.
4.3.3 Trim and make good of surface gavel surrounding existing fence.
5.0
SAFETY ASPECT
5.1
Safety
5.1.1 Safety induction to be conducted to all new workers that involved to this
activity and safety toll box meeting shall be conducted every day to remind the
workers about concerning the safety.
5.1.2 All workers shall be provided with PPE (Personal Protective Equipment) and
shall be worn at all time on site. Safety Manager / Safety Supervisor shall
ensure all the workers wear all the safety equipment’s provided.
5.1.3 All workers shall be advised to report any accident or injury to supervisor.
5.1.4 Proper and adequate provision of temporary signage’s and barricades at
diversions and temporary haul road as necessary (if applicable).
5.2
Environment
5.2.1
All workers shall educate on good environmental management practices and
well-disciplined to environment.
5.2.2 The garbage bin shall be provided at the working area and Supervisor shall
ensure its must be collected regularly and disposed off at the approved
dumpsite.
5.2.3 All workers shall ensure that all tools and equipment machinery are in good
condition to avoid any oil leakage that could harm to environment.
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
5.2.4 To provide portable toilet for worker
6.0
HAZARD ANALYSIS
6.1
Recording the assessment
6.1.1
6.2
Identifying the Hazard
6.2.1
6.3
Significant finding of the risk assessment must be recorded. All hazards in
a workplace need to be identified and necessary precautions taken in order
to completely remove or minimize it to an acceptable level.
The first step of risk analysis is to identify the particular hazard or group of
hazards that require assessment. It should also be decided who the exposed
group may be (who might be affected and how). The hazard may have
been pointed out someone, it may have been highlighted as a result of a
safety audit or observation, and it may be obvious or may apply to a
particular activity or aspect. When considering the exposed group,
consideration shall be given to others who are not there at the time of
assessment.
Potential Hazard
Event
Excavation
(Using backhoe
&excavator)
Transferring
wasted material
out using tipper
truck
Potential Hazard
- Vehicle collision due to speeding or
lose control
Prevention
- Worker getting hit by machinery
- Underground service damaged due to
excavation
- Assign competent driver with valid
driving license.
- Banksman to made available
-To carry out underground scanning to
determine the location of underground
services.
-For identified gas pipe and cable area,
manual excavation shall be carried out
to pre-determined depth.
- Vehicle collision due to speeding or
lose control
- Assign competent driver with valid
driving license.
- Banksman/signalman
Backfilling
Using
backpusher/
bulldozer
- Vehicle collision due to speeding or
lose control
- Worker getting hit by machinery
- Assign competent driver with valid
driving license.
- Banksman/signalman
Compacting
using roller
compactor
-Vehicle collide and out of control
-Worker getting hit by machinery
- Machinery to be inspected and assign
with competent driver
-Banksman/signalman to be made
available
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
Night work
- Long working hours without rest may
cause the workers to be tired and
loose concentration.
- Lighting - lack of lighting at site may
cause accidents.
- Adequate rest must be given to the
workers by having two or more shift
to the work.
- Proper and adequate lighting must
provided.
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
7.0 APPENDIX
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
7.1 APPENDIX A
Layout for PGB Line Crossing
PROJECT TITLE : PROECT NUTMEG FOR PT2SB AT
PENGERANG,JOHOR DARUL TA’ZIM
7.2 APPENDIX B
Section Detail for PGB Line Crossing