BIỆN PHÁP LẮP ĐẶT THÁP GIẢI NHIỆT
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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METHOD STATEMENT
FOR COOLING TOWER ASSEMBLY AND
INSTALLATION
Prepare by :
SUB CONTRACTOR
NAME: Hong Soon Min
DATE : 23-April-2015
Checked by :
POSCO
NAME:
DATE :
POSCO
NAME:
DATE :
Date: 23-April-15
Revision: Rev-00
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Submission Ref. :PSC-HK-MS-M-0010
Approved by :
Consulted by:
Page 1
NAME:
DATE :
HKL
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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Table of Contents
1.
INTRODUCTION
1.1
1.2
1.3
2.
.............................................................................................................................................3
Purpose ...................................................................................................................................................3
Scope ......................................................................................................................................................3
Exclusions ...............................................................................................................................................3
GENERAL
.................................................................................................................................................3
2.1
Program....................................................................................................................................................3
2.2 Location Address..................................................................................................................................3
2.3
Approvals................................................................................................................................................3
2.4 Labor resources......................................................................................................................................4
2.5 Communications ...................................................................................................................................4
2.6 Site Resources Required........................................................................................................................4
2.7 Temporary material.................................................................................................................................4
2.8
Protection................................................................................................................................................4
2.9
Equipment/Tools....................................................................................................................................5
2.10 Hot works.............................................................................................................................................6
2.11 Confined space works.........................................................................................................................6
2.12 Emergency & Safety Equipment.........................................................................................................6
2.13 Materials required for installation..........................................................................................................8
2.14 Schedule of drawings..........................................................................................................................8
2.15 Schedule of inspection........................................................................................................................8
2.16
Attendees............................................................................................................................................8
2.17 Safety Briefing.....................................................................................................................................8
2.18 Mitigation of Risk.................................................................................................................................9
3.
Actual
Works
Method
Statement.............................................................................................................9
3.1 Delivery and Store.................................................................................................................................9
3.2 Cooling tower assembly & installation methodology............................................................................................................................. 10
3.3 Setting to work.......................................................................................................................................22
3.4 Testing..................................................................................................................................................22
3.5 T&C Register........................................................................................................................................23
3.6 Reports................................................................................................................................................23
4.
Appendix..................................................................................................................................................24
4.1 Certificate of calibration ........................................................................................................................24
4.2 Instrument catalogue and manual book.................................................................................................25
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------1. INTRODUCTION
1.1 Purpose
The purpose of this Method statement is to bring the requirements from the technical specifications, drawings
together in one convenient document for reference by the drafters, factory, site installers, QA/QC and all parties who
are concerned with the project. And this methodology to be followed for the assembly and installation of Cooling
tower.
1.2 Scope
This is applicable to the assembly and installation of Cooling tower as set out in the project technical brief and the
approved drawing.
1.3 Exclusions
Not application.
2. GENERAL
2.1 Program
2.1.1 Ensure that the shop drawing used for the references at site is approved for construction.
2.1.2 Ensure that designated manpower to conduct works at site must be properly trained and well oriented by the
safety engineer.
2.1.3 All equipments, tools and mobile scaffolding to be used must be inspected and approved by authorized safety
engineer at site.
2.1.4 All staffs associated with the works shall be sufficiently experienced.
2.1.5 When the workers climb up the working platform, ladder, his hands must be free.
2.1.6 All materials to be used at site must be properly secured and clean.
2.1.7 Working period to base on civil work and Cooling tower installation schedule which will be attached after
getting approval (Waiting for approval).
2.2 LOCATION – ADDRESS
Application for 21st floor.
2.3 APPROVALS
Materials of submission (Waiting for submission & approval).
Shop drawing (Waiting for submission & approval).
2.4 LABOUR RESOURCES
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------The Cooling tower team will coordinate and carry out as below organization chart
2.5 Communications
Office mobile phone or walkie-talkie will be used during working time.
2.6 SITE RESOURCES REQUIRED
Temporary fire protection equipment.
Site electric panel should be needed as site condition.
2.7 TEMPORARY MATERIALS
Materials cover needs to be prepared on the floor and cover Cooling tower when needed.
2.8 PROTECTION
Materials cover needs to be prepared on the floor and cover Cooling tower when needed.
2.9 EQUIPMENT/TOOLS
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------Ensure the availability of equipment and tools provision for Cooling tower assembly and installation works as
follows:
1. Tape measure
or folding rule
2. Cavas sheet
3. Silver ink marker pen
4. Level measure
5. Measure
6. Laser machine
7. Lighting
8. Hand lighting
9. Two-way radios
10. Hand lift
11. Hydraulic toe jack
12. Caution Tape
13. Pipe tube
14. Space roller (Double
type)
15. Ropes
16. Traffice control
cones
2.10 HOT WORKS
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------Not application.
2.11 CONFINED SPACE WORKS
Not application.
2.12 EMERGENCY & SAFETY EQUIPMENT
1) Safety helmet
2) Safety shoes
3) Safety uniform
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------4) Hand gloves
2.13 MATERIALS REQUIRED FOR INSTALLATION
1. Cooling tower
2. Spring isolator
3. Anchor bolt
4. Frame for Cooling
tower
5. Wood
6. Steel plate sheet
8. Shackles
7. Chain block
9. Electric forklift
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10. Steel ropes
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------2.14 SCHEDULE OF DRAWINGS
Refer to shop drawing layout of floors as below
CLMK_MECH_PC_2101
2.15 SCHEDULE OF INSPECTION/T&C FORM
Refer to ITP form as the attached file in below.
2.16 ATTENDEES
2.16.1 Sub-contractor manager.
2.16.2 Sub-contractor site manager.
2.16.3 Main contractor MEP coordinator.
2.16.4 Main contractor mechanical engineer.
2.16.5 HKL M&E manager.
2.17 SAFETY BRIEFING
2.17.1 Safety shall be in first priority during construction, safety staff shall be present on site all the time to
supervise and to remind workers to observe safety requirement. Stop work order shall enforce once its dose not meet
the safety requirements.
2.17.2 Safety shall conform strictly observed. All workers and staff on site shall be oriented of safety requirements.
All safety equipment such as cloths , shoes, helmet , gloves , safety belt should provide and regularly checked during
construction.
2.17.3 The engineer shall inspect all subcontractor tools prior to be used on site.
2.17.4 Safety Supervisor shall be present for all the safety site inspection.
2.17.5 For the safety of worker, grounding wire for the electric ARC process must be provided and wet cloths,
protective glasses, long sleeve cloth must be imposed to worker.
2.17.6 Fire extinguisher shall be provided at welding area and safety provision must done to ensure usage
workability.
2.17.7 Safety working with Scaffolding.
2.17.7-1 All scaffolds must be erected under the supervision of a competent and experienced person- usually the
construction superintendent. This includes moving scaffolds from one position to another. Each leg of a scaffold
must be supported by and adequate footing. Loose bards, bricks and other material do not provide a safe, adequate
base.
2.17.7-2 Where the working platform in more than 10 feet off the ground, the scaffold shall have guardrails
installed.
2.17.7-3 If people are working under the scaffold, toe boards must be used to prevent tools and materials from
falling on them.
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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2.17.7-4 Workers are not to climb the metal tubular frame of the scaffold to get the working platform. Other, safer
means of access must be used – a ladder or access from the building.
2.17.8 Safety working with Mobile Scaffold.
2.17.9 Mobile scaffolds have restricted reach unless a guy wire secures them. They are more susceptible to
overturning and require a smooth, level working surface. A complete guardrail system must be used at elevations
above 10 feet and shall be used at all working levels. Scaffold should be moved when unoccupied and only by
pushing from the base. Wheel brakes must be set when scaffold is in use.
2.18 MITIGATION OF RISK
Impact damage during pouring of concrete installation to be monitored constancy white concrete is poured. Correct
connections or materials, ensure the final installation and connections are inspected and signed off with
photographic records by MEP coordinator on site M&E staff from contractor, architect and client.
3. ACTUAL WORKS METHOD STATEMENT
3.1 Delivery and store
Materials arrived to site shall be inspected and stored according to manufacturer recommendations. Materials shall
be stored in the covered and dry space. During the receiving materials of Cooling tower, manpower shall be used to
make Cooling tower. The Cooling tower and accessories shall be protected and covered with polythene sheets before
installing. Materials of Cooling tower is as below.
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2 COOLING TOWER ASSEMBLY AND INSTALLATION METHODOLOGY
a)
Safety officers and traffic control officers to station around the cordoned off areas until the crane and
transporters for Cooling towers arrive.
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------b) The Hoisting Manager must be on hand to supervise the positioning of the traffic control and safety
officers, and to ensure that adequate numbers of 2-way radios are distributed for communications.
c)
When the transporters are carrying the Cooling towers arrive, direct the transporter to the location reserved.
d) All personnel must remain in position from this time until the lifting is declared over by the Hoisting
Manager.
e)
Inspect Cooling towers. Photograph and record any signs of external damages.
f)
Site logistic plan is shown as below
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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g) Rigging team secures rope to the lifting lugs of the Cooling tower modules to the manufacturer’s
recommendations. Tie a guy rope to each end of the Cooling tower module. Lift up the Cooling tower
module by 30 cm.
h) When the Cooling tower module is fully lowered onto the 21 st floor – Plant room, remove the hoisting
ropes and push Cooling tower modules in location.
i)
Cover each Cooling tower module with protective canvas sheet.
j)
Repeat the above sequence to the remaining Cooling tower modules.
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
---------------------------------------------------------------------------------------------------------------------------------------------Step by step to lift up Cooling tower modules as follow
Beam rigging method
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
--------------------------------------------------------------------------------------------------------------------------------------------- Basin - Fan rigging method
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
--------------------------------------------------------------------------------------------------------------------------------------------- Casing rigging method
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
--------------------------------------------------------------------------------------------------------------------------------------------- Alternate discharge hood sealing rigging method
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PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
23. APRIL. 2015
FOR COOLING TOWER ASSEMBLY AND INSTALLATION
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