JOB HAZARD ANALYSIS Grouting of Pipes in Stormwater Single and Double Pipe Catchpits
The responsible person is to ensure the control measures below are in place before the activity is carried out
| TASK: Grouting of Pipes in Stormwater Single and Double Pipe Catchpits (Types 1, 2 & 3) | Date:19 December 2006 | |||||
| No | ACTIVITY | HAZARD | RISK | CONTROL MEASURES TO MINIMISE / ELIMINATE RISK | RESPONSIBLE PERSON | |
| 1 | Service location survey | Manual handling operations (MHO’s) | Work related upper limb disorders. Musculoskeletal injuries. Cuts, abrasions. Foot / toe injuries, eye injuries | Maximum use of equipment to reduce need for MHO’s MHO Training prior to any work being carried out (Toolbox talk attached) ,This training is to be documented Wearing of gloves Wearing of safety shoes Wearing of safety glasses | ||
| Extreme heat | Dehydration, heat exhaustion. Heat stroke | Ready supply of cold water and Oral rehydration products ie Salt & Dextrose tablets. No work to be conducted under the sun between 12:00 & 15:00 (July & August only) | ||||
| Use of hand tools | Cuts, abrasions, broken bones, eye injuries | Supervisor to inspect hand tools prior to commencement of works to ensure tools are in good condition. Site minimum PPE to be worn at all times | ||||
| 2 | Preparation of Bund | People working in an excavation | Engulfment, entrapment. Asphyxia, death | Works will be constantly monitored by an authorized and competent person throughout. Entry to the work area will only be allowed after the competent person present has inspected r the area to ensure the area is safe for the entry of operatives. The competent person will inspect the work area daily prior to any works taking place Tool box talk will be given prior to any works being done. All excavations will be conducted under a permit to break ground. | ||
| Manual handling operations (MHO’s) | Work related upper limb disorders. Musculoskeletal injuries. Cuts, abrasions. Foot / toe injuries, eye injuries | Maximum use of equipment to reduce need for MHO’s MHO Training prior to any work being carried out (Toolbox talk attached) This training is to be documented Wearing of gloves Wearing of safety shoes Wearing of safety glasses | ||||
| People falling into the work area | Engulfment, entrapment. Asphyxia, death | The excavation will be protected on all sides by a fixed barrier which will be highly visible and will be illuminated in the hours of darkness. Warning boards will be erected on all sides of the excavation. Effective rescue procedures will be rehearsed at least monthly or more frequently if the churn of staff so dictates. | ||||
| Dust | Poor visibility, respiratory Injuries Dust explosion | An effective Dust suppression programme will be in place prior to the works commencing, and thereafter as necessary to suppress the dust sufficiently. In the event that the dust suppression programme fails operatives will be issued suitable RPE. In the event the dust causes restricted vision, operatives will be removed from the excavation. | ||||
| Extreme heat | Dehydration, heat exhaustion. Heat stroke | Ready supply of cold water and Oral rehydration products ie Salt & Dextrose tablets. No work to be conducted under the sun between 12:00 & 15:00 (July & August only). In the event that natural airflow is restricted, industrial air movers will be employed. No worker shall work within the excavation for longer than 40 minutes without a ten minute break in a shaded area which will be provided for this purpose. | ||||
| Collapse of excavation | Engulfment, entrapment. Asphyxia, death | Excavation works will be constantly monitored by an authorized and competent person throughout the works. Entry to the excavation will only be allowed after the competent person present has signed an inspection record form stating that the excavation is safe for the entry of operatives. The competent person will inspect the excavation daily prior to any works within the excavation. Access & egress points will be maintained throughout the works. No person to work more than 25 meters from an escape route. Evacuation exercises will be rehearsed at least monthly or more frequently if the churn of staff so dictates. | |||
| Contact with underground services | Explosion or asphyxia. Loss of airport services | A full and comprehensive services survey will be conducted prior to the works commencing. All (services relevant) information will be obtained from the client prior to works commencing. Work near to known buried services will be conducted by hand. Staff will be briefed on how to recognise the possible buried services that may be encountered. | |||
| Contaminated land / soil | COSHH Related injuries | Staff will be briefed on the potential contaminants their nature, the hazards and how to recognise them. A process will be implemented that causes operatives who suspect by sight or smell any such contaminants to be present to report any such suspicion to the competent person present. The competent person on being informed of any contaminate will assume the substance to be hazardous and reassign the workers to a place of safety until the suspected substances have been examined by a competent person specialising in Toxic or harmful substances. | |||
| Equipment falling into excavation | Injuries to operatives in the excavation | A physical barrier will be erected 2 metres from the excavation edge. No vehicles will be allowed closer than 2 metres from the excavation edge. Equipment and stores will not be stockpiled any closer than two metres from the edge of the excavation edge. | |||
| Blood born pathogens (BBPs’) | BBP Related injuries | Staff will be briefed on the potential contaminants their nature, the hazards and how to recognise them. A procedure will be implemented that causes operatives who suspect by sight or smell any such contaminants to be present to report any such suspicion to the competent person present. The competent person on being informed of any contaminate will assume the substance to be hazardous and reassign the workers to a place of safety until the suspected substances have been examined by a competent person specialising in Toxic or harmful substances. | |||
| Vehicles falling into excavation | Plant related injuries. | A physical barrier will be erected 2 metres from the excavation edge. No vehicles will be allowed closer than 2 metres from the excavation edge. | |||
| Vehicle overturning | Entrapment, Crush injuries | Seat belts will be worn. Areas of extreme un-evenness will be graded as and when necessary. | |||
| Noise | Deafness, CEMP violation | Noise monitoring will be conducted to measure noise as required by the CEMP. Proactive measures will be taken to reduce noise SFAIRP. Hearing protection will be available on request to all exposed staff should the TWA Noise level reach 80dBa. Hearing protection will be mandatory if the TWA background noise reaches 85dBa. |
| Unplanned vehicle movements | Plant on plant incidents. Pedestrian injuries | A strict Plant / Vehicle and operative / pedestrian separation regime will be enforced. | |||||
| Flooding | Drowning | Excavation works will be constantly monitored by an authorized and competent person throughout the works. Entry to the excavation will only be allowed after the competent person present has signed an inspection record form stating that the excavation is safe for the entry of operatives. The competent person will inspect the excavation daily prior to any works within the excavation. At least two access & egress points will be maintained throughout the works. Evacuation exercises will be rehearsed at least monthly or more frequently if the churn of staff so dictates. | |||||
| Gas (H2S, Methane etc) | Explosion or asphyxia | Toxic, flammable gas / Oxygen / CO2 tests to be conducted prior to any trench entry using an approved, certified & calibrated gas monitoring device. Monitor to remain in position when excavation is occupied. | |||||
| Lack of oxygen | Asphyxiation | Continuous monitoring, forced Air movement if necessary | |||||
| 3 | Concrete Pouring | Contact with Concrete | Entrapment, Suffocation, Chemical Burns | Constant supervision. During pouring of concrete mixture, workers to be tethered to a rescue line, while wearing a full body harness. Rescue line to be adequately manned to enable an instantaneous removal from the excavation. Butyl rubber boots and gloves to be worn. COSHH Training to be delivered prior to any concrete pour. | |||
| 4 | Laying of Polythene sheet | Manual Handling | Work related upper limb disorders. Musculoskeletal injuries. Cuts etc | Maximum use of equipment to reduce need for MHO’s MHO Training prior to any work being carried out, this training is to be documented Wearing of gloves Wearing of safety shoes | |||
| 5 | Sealing of manholes | Use of Tanking Paint | COSHH related injuries | COSHH Assessment will be conducted on the filling material prior to its use and the findings will be implemented prior to any such use. | |||
| 6 | Back filling & Compaction | Equipment falling into work area | Injuries to operatives in the work area | Strict access control to the work area, use of stop blocks as appropriate No vehicles allowed closer than 2 metres from the work area. | |||
| Vehicles falling into excavation | Plant related injuries. | Stop blocks will be erected 2 metres from the excavation edge. No vehicles will be allowed closer than 2 metres from the work area. | |||||
| Vehicle / plant overturning | Entrapment, Crush injuries | Out riggers to be in place before works takes place | |||||
| Noise | Deafness, CEMP violation | Noise monitoring will be conducted to measure noise as required by the CEMP. Proactive measures will be taken to reduce noise SFAIRP. Hearing protection will be available on request to all exposed staff should the TWA Noise level reach 80dB. Hearing protection will be mandatory if the TWA background noise reaches 85dB. | |||||
| Unplanned vehicle movements | Plant on plant incidents. Pedestrian injuries | A strict Plant / Vehicle and operative / pedestrian separation regime will be enforced. Wearing of high visibility vests. | |||||
| Lack of oxygen | Asphyxiation | Forced Air movement as necessary. | |||||
| Venomous insects Snakes. | Potentially lethal bites | Areas to be checked prior to entry Operatives to be briefed on what constitutes a potentially lethal insect or snake | |||||
| 7 | Erecting permanent protection | Use of plant | Swing area entrapment. injuries | No person will work within the traversing arc of lifting equipment unless authorised | |||
| Unplanned vehicle movements | Plant on plant incidents. Pedestrian injuries | A strict Plant / Vehicle and operative / pedestrian separation regime will be enforced. Wearing of high visibility vests. | |||||
| Traffic | RTA’s Vehicles entering work area | A strict Plant / Vehicle and operative / pedestrian separation regime will be enforced. Wearing of high visibility vests. Flashing beacons at night, use of a flagman | |||||
| This JHA was prepared by:- | This JHA was authorised by:- | ||||||
| Gamal Elsalawi ESH Manager OAJ-JV Date:-19 December 2006 | Name & Position to be inserted Ravindra Raju, Technical Manager, OAJ-JV Date:- 19 December 2006 | ||||||
| TASK:__________________________________________________________________ | Date: ___________________ | ||
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All Employees are to sign below in recognition and understanding of this JHA content
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Md Abu Zaed Khan
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