01 MS for manhole

NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES (DOCUMENT CLASS: X) Issue Purpose For Construction Rev Date Page Description Prep'd Chk'd App'd Mar/23/2015 All For Construction L.V.S C.N.T D.M.C Mar/13/2015 All For Construction L.V.S C.N.T D.M.C Feb/10/2015 All For Construction L.V.S C.N.T D.M.C Jan/12/2015 All For Approval B.D.H C.N.T D.M.C Operation Centre JOB Code: Responsible Company: Vinaconex E&C Operation Centre Doc No.: Prepared by: Checked by: Approved by: Le Van Son Cao Nguyen Thang Do Minh Chau Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No VV 3120-008-A-133 Rev.3 CONTENTS INTRODUCTION SCOPE OF WORK 3 REFERENCES ORGANIZATION CHART - RESPONSIBILITIES 5 EQUIPMENT 6 MATERIALS RESOURCES PROCEDURE SAFETY 10 10 TRAFFIC MANAGEMENT PLAN 15 11 WASTE MANAGEMENT PLAN 15 12 APPENDIX #1 25 13 APPENDIX #2……………………………………………………………………………………………… 42 Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No VV 3120-008-A-133 Rev.3 INTRODUCTION This document details Work Method Statement and Job Safety Analysis (JSA) for Manholes at C200, C300 are as under Zone of the NSRP Complex Project SCOPE OF WORK This Method Statement covers the works related to excavation and backfilling for manholes, and other miscellaneous foundations as detailed from construction drawings to ensure that the entire execution stage of work is done in line with good JGCS’s Engineering practices and in compliance with JGCS’s Engineering standard practices, national and local codes This is also to describe details of HSSE requirements, equipment and methodology requirements,… Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No VV 3120-008-A-133 Rev.3 REFERENCES Earth Work Specification: 3550-8310-SP-0009 Specification for Concrete works: 3550-8310-SP-0005 Construction Specification for Concrete Work: S-000-1320-1001V Scaffold Procedure: S-000-1654-0400V Specification for The Foundation of Storage Tanks: 3550-8310-SP-f0006 HSSE Instructions to Sub-JGCSs: S-000-1654-0250V Safety Transportation Management Plan: S-000-1654-0300V HSE Instruction to JGCSs: 3550-8710-SP-0003 Drawing for construction issued from JGCS Vinaconex E&C HSSE Management Plan VV3120-008-A-403 Vinaconex E&C Traffic Management Plan VV3120-008-A-406 Vinaconex E&C Waste Management Plan VV3120-008-A-404 Vinaconex E&C Emergency Response Plan VV3120-008-A-402 Construction Drawings for Manholes Construction drawing for Pipes Drainage Materials and workmanship 3550-8310-SP-0011 Standard pipe connections to manholes D-000-1316-1003V Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No VV 3120-008-A-133 Rev.3 ORGANIZATION CHART - RESPONSIBILITIES Project Manager: Vu Ba Dat Milestone schedule QS section for contract, quantity, payment Site Manager: Do Minh Chau Directly in charge for daily schedule, mobilization of equipment, materials supply capacity QC Section QC Manager: CN Thang QC field Eng.: NV Thu, PH Tien ITP, Laboratory, Inspection, Records Batching plant, material supply - Batching plan - Capacity of supply, access in and out, record, quantity control, store Site Engineer LN Hoan, VD Sang, TN Thach, NQ Hieu, BD Ha Survey, daily schedule, location of work, equipment control, labor for each kind of works Construction Team - Team #1, #2 - Foremans - Labors for works - Minor tool and equipment, submaterials, form and scaffolds HSSE HSSE Manager: PN Giang HSSE Supervisor: LH Trung, VN Hai,HD Bach, DT Ninh Equipment HSSE control, Permit, access way, Traffic, Labor entry, HSSE training, HSSE at work place Const Equipment Condition and number of Equipment, fuels, drivers, transportation, traffic control, signal, service Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 EQUIPMENT Equipment Name, Capacity No Year of s Manuf Origin Excavator 02 2010 Japan Crane truck 43T 01 2012 Japan Crane truck 5T 01 1994 Japan Tamping rammer MIKASA 02 2001-2011 Japan 10 Air compressor 01 2010 China 11 Bending and Cutting machine, D32 02 2000 China 12 Welding machine, 250A 03 2012 Vietnam 13 Needle concrete vibrator 03 2012- China 2014 14 Water pump 03 2013 Japan 15 Survey instrument NIKON 02 2010 Japan 02 2010 Japan 16 Automatic Leveling machine: NIKON 17 Batching plant 05 2008-2011 18 Concrete agitator truck m3 08 2008- Japan, Vietnam Korea, China 2010 19 Concrete pump car 60 m3/h 03 2008- Japan 2010 20 Bulldozer 02 2010 Japan 21 Roller 02 2010 Japan Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES - Contractor Doc No Rev.3 VV 3120-008-A-133 Prior to using any machineries/equipment at site, it will be inspected and certified by qualified person - Periodic Preventive Maintenance will be made by all equipments and machineries - All operators and drivers are to be educated with valid driver’s license/operator’s license or permit from concerned government agency - Only authorized drivers and operators are allowed to operate equipment and machinery - Only authorized signalman will be assigned together with the driver or operator 22 MATERIALS - All material shall conform to the appropriate specification or standards listed above unless/otherwise approved by JGCS - All material shall either carry a quality certificate from the approved source or be tested to the satisfaction and approval of JGCS - All materials needs and all equipment and tools required shall be sole responsibility of SubJGCS - Concrete: mainly from batching plant of VINACONEX E&C installed on site (batching plant of Viet Han, SAKURA, VIMECO, OIC or other approved ones by JGCS are standby option) - Reinforcement: Shall be transported to workshop in the site (submitted to JGCS for approval) 23 Non shrinkage: Shall be submitted by JGCS MANPOWER AND RESOURCE - Prior to working any work at site, all workers will be trained safety and certified by JGCS’ HSE - All workers must to have name card for travel on the site - There are teams for this task Team working at C200 Table 7.1: LIST OF MANPOWER FOR TEAM No Manpower Equipment (ea) Manpower Note Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Driver of excavator 2 Driver of Mobile crane Driver of Concrete truck Leveler, Total Station 2 Water pumper 2 Mechanic Electrician Guard Flagman 10 General workers 10 Team working at C300 Table 7.1: LIST OF MANPOWER FOR TEAM No Manpower Equipment (ea) Manpower Driver of excavator 2 Driver of Mobile crane Driver of Concrete truck Leveler, Total Station 2 Water pumper 2 Mechanic Electrician Guard Flagman Note Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES 10 Contractor Doc No Rev.3 VV 3120-008-A-133 General workers Notes: - Labour mobilisation schedule would be revised based on updated plan - VINACONEX E&C will assign HSSE Supervisor and First Aiders regarding worker ratio, per 50 workers - Management staff (see paragraph 4) 24 PROCEDURE 24.1 Process for Manhole construction (For manhole with depth of less than 2500mm – Precast concrete):  Fabrication rebar, formwork and concrete work on the Fabrication yard (on the ground level)  Preparation fabrication yard Page of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES  Contractor Doc No VV 3120-008-A-133 Rev.3 Rebar work F  or m w or k Page 10 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Ste Responsible Work Activity/Step Hazard Control Measures p Person Work over or near water Drowning Flooding Provide fall prevention systems (barricades) Trained First aid for recovery, Practice rescue/recovery procedures Falls Wear personal floatation devices (PFDs) Electrocution Determine whether all personnel can swim HSE Engineer Site Engineer Operator Worker Work in pairs Provide safe access and egress systems Check using of electrical tools etc over/near water Excavation for manholes Injury to personal Equipment route marked and directed by engineers/foremen HSE Engineer Damage or overturning of equipment Moving of equipment is allowed more than days after concreting of Site Engineer Collapse of side of excavation due to ground/storm water manhole, backfilling outside of manhole after concreting Ensure water pump available on site, not enter excavation during Operator Worker heavy storm, Site engineer to check supports and formwork daily Execution of rebar work Page 59 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Ste Responsible Work Activity/Step Hazard Control Measures p Person Execution of formwork and Fall from height Person responsible for erecting the scaffold must hold a basic scaffolding Collapse, potential falls scaffolders ticket If there are no qualified/experienced workers Manual handling, potential body strain available, the scaffold must be ordered from an external provider who HSSE Supervisor, Staff, Site Engineer, Scaffoder can supply and erect as per the minimum standards Scaffold material to be approved by JGCS Utilise safe manual handling practices, including share lifting if required A pre-work inspection of the scaffold must be conducted to ensure adequate access, work platforms and hand 10 Concrete pump for slab Back injury due to moving ground pipes foundation(insitu) Use of ropes and good manual handling practices to be adopted HSE Engineer Concrete Gang should wear a safety PPE Site Engineer High pressure concrete and aggregate going into eyes, face or Until concrete is flowing smoothly out of the end of the delivery hose, or any exposed skin due to standing or working in front of end when a blockage occurs in the boom pipeline, all personnel should hose, or opening up pipe joints when pumping remain clear of the delivery hose and placing boom Operator Worker High visibility clothing must be worn and not back truck on out of view of mixer driver who will be reversing using mirrors Keep site personnel Crushing when mixer lorry is backing onto the pump hopper out of reversing area Do not kink placing hoses in the ground line Do not attempt to pump very old concrete or concrete other than a pump mix The danger zone is Broken limbs, severe injury caused by whiplash of placing the area around the end hose in which it can strike out The diameter of hoses the zone is twice the length of the end hose Page 60 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Ste Responsible Work Activity/Step Hazard Control Measures p 11 12 Person Concrete work of manhole Eye and skin injury from splashing concrete Wear boots, long sleeve shirts, and eye protection HSSE Supervisor, Wear proper eye protection and PPE Staff, Site Engineer Compact with steel roller, Concrete splashing into eyes Wear safety PPE: clothes, goggles, gloves , helmets, shoes HSE Engineer pneumatic roller and vibrating Crushing when agitator truck hit chute or people Signal person when the agitator truck move backward inform mixer Site Engineer plate Falls or injury to hands, arms, ankles, legs etc during concrete driver of risk pouring Operator Worker Concrete burns to hands and feet 13 Using hand and power tools Injuries from nail guns, power saws and drills Make sure the safety mechanism is functioning correctly on nails guns and never tamper with it to fire a nail Never carry power tools with the trigger depressed HSE Engineer Operator Worker Keep hands away from the immediate work area Disconnect tools from the power source before making adjustments or carrying out servicing Wear hearing and eye protection Do not direct compressed air at anyone Check that adjustable guards are operating correctly Keep a firm grip while using tools Page 61 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Ste Responsible Work Activity/Step Hazard Control Measures p 14 15 Person Removal of formwork Protection and curing Form work materials left in area could lead to risk of trip/fall risk All formwork equipment must be stacked and/or palletized and removed HSE Engineer, and inadequate access from site immediately after stripping and prior to removal of centralized Supervisor, equipment too ensure adequate access Workers Slip and trip of workers Have warning board for wet area HSE Engineer, PPE must be worn at all times {include hard hats, safety shoes, Worker protection wear) All worker have to trained safety when working at height Scaffolding have to provided safety certification 16 Lifting Works by heavy equipment Personal injury or property damage Keep well clear of moving crane and materials while unloading is in Struck by Equipment failure progress HSSE Supervisor, Staff, Site Crush injuries Keep clear of materials while lowering load Being struck by materials Page 62 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 RISK ASSESSMENT COMPANY: VINACONEX E&C JSA NO ACTIVITY: Method Statement for Manhole AREA: C200, C300 EQUIPMENT & TOOLS USED: Safety tool and equipment DATE: From December/2014 to July/2015 Hazard No Work Activity/Step Transportation of Classification H S E ● ● ● Impact Hazards Identified Injury due improper equipment Residual Initial Risk Mitigation/Control Measure P E A R S P RF ● ● ● ● High Certified Equipment Supervisor HSE Equipment & Machinery loading or unloading & securing Adequate Instruction condition Traffic accident during Maintenance program for Engineer transportation due to improper Equipment / Machinery Operator routing and driver’s error Poor condition Risk Action By S P RF 2 Med Installing Warning Signs Reverse alarm for all machine Checking for driver equipment/machinery (Health certificate and driver Spillage of Hydrocarbons from certificate) equipment / machinery Page 63 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Supplying of materials to ● ● ● the site Creating a nuisance, Contractor Doc No Rev.3 VV 3120-008-A-133 ● ● ● ● High Breathing Apparatus (dust mask) disturbance to local Watering for route on site when it's dry neighbors Respiratory protection (dust mask etc.) Supervisor Low 1 Low 1 Low HSE Engineer (e.g other contractors and local communities) Increased potential for accidents due to poor visibility Damage to off-Site environmental areas that have not been identified / assessed Fugitive dust from trucks moving Transport of materials out ● ● ● side the project Overhead transmission ● ● ● ● 2 Medium lines, bridges, load Banksman shall be assigned at the critical locations Warning Signs restrictions Site Engineer Operator Cross section of traffic Refueling of construction equipment ● ● ● Spillage (vehicles, ● ● ● ● 2 Medium Maintenance program for Vehicles / Machinery Supervisor machinery) Using proper fuel dispenser and container for Site Leakage of oil, diesel refueling Engineer Use fuel truck for transport fuel on site Operator Spill kit made available Page 64 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Fire fighting equipment Work near cranes ● ● ● Collapse while being ● ● ● ● Medium erected, maintained, Ascertain safety limit is not exceeded HSE Warning board for danger of piling rig Engineer altered or serviced Low 1 Low Site All moving parts are correctly guarded and coFalls from height ordinated between Vinaconex E&C and Piling sub- Engineer contractor Operator Toppling over Loads dropped All guards are in place and serviceable Amputation or crush injuries Operator driver training Contact with utilities Adequate supervision Mechanical, hydraulic or Flagman/banksman available Worker structural failure Work over or near water ● ● ● Drowning ● ● ● ● 2 Medium Provide fall prevention systems (barricades) HSE Flooding Trained First aid for recovery, Practice Engineer Falls rescue/recovery procedures Site Electrocution Wear personal floatation devices (PFDs) Engineer Determine whether all personnel can swim Operator Work in pairs Worker Provide safe access and egress systems Check using of electrical tools etc over/near water Page 65 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Excavation for manhole ● ● ● Injury to personal Contractor Doc No Rev.3 VV 3120-008-A-133 ● ● ● ● 3 Medium Equipment route marked and directed by HSE Damage or overturning of engineers/foremen Engineer equipment Moving of equipment is allowed more than days Collapse of side of after concreting of beam, backfilling outside of beam excavation due to after concreting ground/storm water Ensure water pump available on site, not enter 2 Med 2 Med 2 Med Low Site Engineer Operator excavation during heavy storm, Site engineer to Worker check supports and formwork daily Execution of rebar work Grinder wheel throws off Rebar cutters who was accepted by authorized HSSE staff sparks and hot bit of people will wear safety glasses, gloves, hearing Worker metal protection, safety vest, and hardhats, face shield Accidental contact with ● ● ● ● ● ● 4 High High grinder wheel can cause Worker will ensure the grinder's guard is in place and fully operational before use bad cuts Execution of formwork and Mill scale, sharp/ sheared scaffolding ends of tie wire can injure ● ● ● High - Workers tying rebar will wear safety glasses and HSSE staff,Worker eyes Scaffofer must be trained Tripping and/or falling • • • High - Protec of protruding rebar 2 Med Debris should be removed from work areas on a regular basis Page 66 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Impalement hazard Contractor Doc No Rev.3 VV 3120-008-A-133 ● ● ● High Rebar should be properly stacked Stacks store HSSE staff, beneath overhead power line shall first be moved Site forward and away from the power line before being Engineer, lifted, to eliminate contacting power line Workers Low Low Low Low All protruding end of bar shall be guarded with rebar caps or wooden troughs or bent the exposed ends Accidental contact with ● ● ● 3 Medium overhead power line All protruding ends of steel rebar shall be guarded HSSE with rebar caps or wooden troughs or bent so that staff,Worker exposed ends no longer create an impalement hazard, Injury while working under ● ● ● 3 Medium mobile crane Do not standing beneath the lifting areas HSSE staff, Ensure loads are fixed with sling belt correctly Site Use lifting tools attached monthly checking color tag Engineer, Workers All lifting equipments must be in good condition Defective formwork supports could lead to structural instability of works-risk of being hit by ● ● ● ● High All scaffold working flat form shall be inspected buy HSSE staff, Scaffoding inspectior prior to use Site All formwork supports, structures and attachments are inspected for defects prior to operations Engineer, Workers falling object Assign competent scaffold are erectors and supervisor Defective equipment will not be used Page 67 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Erection of supports and ● ● ● ● High frames may lead to risk of being hit by Hardhats and Steel capped boots Engineer to HSSE complete hand-over cerfiticate for structure staff, Use structure as per manufactures attachments and support recommendations Low Low 1 Low Site Engineer, Workers structure Fall from height while erecting scaffold ● ● ● ● High and formwork Person responsible for erecting scaffold must hold a HSSE basic scaffolders ticket staff, Utilize safe manual handling practices, including share lifting if required Site Engineer, Workers A pre-work inspection of the scaffold must be conducted to ensure adequate access, work plaform and handrail is in place If in doubt, not use scaffold Work must be ceased if other site workes all access openings in working platforms are to be closed when a person is working on the platforms The safe working load of the working platform is not to be excceeded Inadequate primeter fencing could lead to risk • • • Mediu m Erection of fall protection when working at height HSSE staff, Site of fall from height when Engineer, erect from work Workers Page 68 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES 10 Concrete work of manhole ● ● ● Concrete splashing into Contractor Doc No Rev.3 VV 3120-008-A-133 ● ● ● ● Medium Wear safety PPE: clothes, goggles, gloves , helmets, eyes shoes Crushing when agitator Signal person when the agitator truck move truck hit chute or people backward inform mixer driver of risk HSE Low 2 Med 1 Low Engineer Site Engineer Falls or injury to hands, Operator arms, ankles, legs etc Worker during concrete pouring Concrete burns to hands and feet 11 Compact with steel roller, ● ● ● Vehicle at steep grades - ● ● ● ● High Maintain safe distance from edge of drop off (assess pneumatic roller and turnover/run away, drop off and communicate distance during toolbox and site vibrating plate >~10% cross fall risk assessment meeting) Select low amplitude Noise HSE Engineer Operator Worker Use vibrating plate or smaller roller near drop offs Striking people on site Select correct gear before ascending or descending Collisions with other plant Ensure rotating flashing beacon is on and vehicles Do not roll up too close behind paver Sound horn to warn people of your presence Always use mirrors and look in direction of travel When using worker to assist cleaning the drum, always move away from the worker Using hand and power 12 tools ● ● ● Injuries from nail guns, power saws and drills ● ● ● ● 2 Med Make sure the safety mechanism is functioning correctly on nails guns and never tamper with it to fire a nail HSE Engineer Operator Page 69 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Never carry power tools with the trigger depressed Worker Keep hands away from the immediate work area Disconnect tools from the power source before making adjustments or carrying out servicing Wear hearing and eye protection Do not direct compressed air at anyone Check that adjustable guards are operating correctly Keep a firm grip while using tools 13 Removal of formwork • • • • • • Form work materials left in • All formwork equipment must be HSE area could lead to risk of stacked and/or palletized and removed from site Engineer, trip/fall risk and immediately after stripping and prior to removal of Supervisor, inadequate access centralized equipment to ensure adequate Workers PPE must be worn at all times (include hard hats, Supervisor, safety shoes, safety gloves and protection wear) Workers Injury due to protruding nails and sharp objects • • • • • • • 3 Medium Medium 1 Low 1 Low Arrange neatly formwork material and scaffold Clean plan after dismantling of formwork Page 70 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES • • • Risk of being hit by falling Contractor Doc No Rev.3 VV 3120-008-A-133 • • • High Area to be cordoned off with tape and barriers to HSE object when installing and prevent access to non - authorized personnel Engineer, removing centralized Signage to be erected Supervisor, equipment Only competent staff members to remove Workers Low centralized equipment Line of site supervision Back propping to be erected prior to dismantling centralized equipment t allow adequate curing time for cement 14 Protection and curing Slip and trip of workers • • • Low Have warning board for wet area PPE must be worn at all time HSSE staff, Worker All worker have to trained safety when working at height 15 Lifting Works by heavy Personal injury or property equipment damage • • • • High Pre inspection by 48 hours before equipment arrival Daily checklist HSSE Supervisor, Staff, Site Trained and Qualified Operator and rigger Annual Crane Inspection & other required records Logistics Plan Page 71 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 Risk Assessment Matrix HSE Risk Assessment Matrix Probability Rating Potential Consequence Severity People (P) Environment (E) Assets (A) Reputation (R) Page 72 of 66 NGHI SON REFINERY AND PETROCHEMICAL PROJECT Title: METHOD STATEMENT FOR EARTHWORK AND CONCRETE WORK OF MANHOLES Contractor Doc No Rev.3 VV 3120-008-A-133 in Every >3 in Every 1-3 Severity in Every Never Heard in Every 100K-250K ManMillion Man- Million Man- 250K-1 Million Of Rating hours hours hours Man-hours LOW RISK: SCORES OF - No Injury/ Near miss No Effect/ Near Miss No Damage/ Near Miss No Impact/ Near Miss No further action is required Slight Injury/Illness (First Slight Effect Slight Damage Slight Impact Aid Treatment Case) MEDIUM RISK: SCORES OF – Minor Injury/Illness Minor Effect Minor Damage Limited Impact (Medical Treatment Case) Reduce as low as reasonably practical (ALARP) Major Injury/Illness (Lost Localized Effect Localized Damage Large Impact Major Effect Major Damage Major National Time Injury/Illness) Single Fatality (Fatality/Permanent HIGH RISK: SCORES OF ABOVE Unacceptable, Risk must be reduced to Medium or Low Risk Disability) Multiple Fatalities Massive Effect Extensive Damage Major International Page 73 of 66 ... 8.2 Process for Manhole construction (For manhole with depth greater than 2500mm – In-situ concrete): Excavation Work Concrete Works for Bottom Slab of Manhole Concrete Works for Manhole Wall... invoice until conforming to the specifications Reinforcement will be laid on the manholes Cover sheet will be used for preventing from rust Cover sheet Manhole Manhole Storage of reinforcing bars... using total station for determining elevation of bottom formwork, adjusting formwork, fix the formwork to form shape - Formwork including props shall be so constructed that the form maintained in