Excavation hazards and Control measures | Mechanical and Manual excavation work hazards

 Excavation hazards and Control measures | Mechanical and Manual excavation work hazards

Excavation hazards and controls

MECHANICAL / MANUAL EXCAVATION WORK- HAZARDS AND CONTROL MEASURES

HAZARDS

CONTROL MEASURES

·         Equipment failure ( Excavator, Loader, Dumper)             · U/G existing services (FOC)                                     · Improper Access / Egress               · Vehicle movement (Excavator, Loader, Dumper) / hit to workers                                     · Excavation /Cave-in / Excavation collapse                            · Slip, Trip, Fall         · Dust

-          Daily pre-work start inspection shall be carried out by the operator and certified by the area foreman. -          Ensure all equipment & tools are inspected by a trained person -          Operators & drivers have a valid driving license -          Follow daily / weekly checklist for equipment & tools.   -          All identified underground utilities as per on Existing As-Built Drawing issued from the Client/Consultant shall be marked. -          A cable Detector shall be used before manual digging to locate underground utilities such as electrical cables. -          Trial pit Excavation permit shall have been obtained before work commencement (if required trial pit for underground services) -          Trial Pits will be carried out manually to expose and identify all underground services. -          Only hand shovel and pick axe will be used for trail pit manual excavation -          No machinery is allowed to excavate Trial Pit under any circumstances -          All existing services will be covered, supported, and protected following the related authorities’ instructions in the NOC. -          Identify and secure all existing structures which will be affected by excavation works -          Check and ensure the area of work is free from hazardous -          Report immediately for the identified utility or underground services.   -          Make proper steps access for pedestrian workers in the excavation -          Make proper slope access for vehicle movement in the excavation area -          Only approved aluminum ladders are to be used as means of access and egress in the trench of excavation -          Make separate access for vehicle movement away from the pedestrian access.     -          Deploy banks man/ Flagman to control the movement of the vehicles, equipment -          Banks man wearing a reflective jacket to be provided -          No one worker working nearby the excavator -          The Excavator operator shall be trained & experienced -          Auto alarm system in excavator during moving of boom -          Always moving up position boom of the excavator -          Make separate access for vehicle movement away from the pedestrian access. -          Proper barricading shall be placed and Traffic control, Caution, and Awareness signboards shall be placed for each excavation area -          Flashlights shall provide for the barricading for ease of identification during the night times -          Personal Protective Equipment (PPE) will be provided (i.e. Safety Shoes, Coverall, Safety Helmet, and Reflective vest. -          All vehicles have shall reverse alarm and revolving warning light.     -          The excavation area should be marked as per as building drawing -          Barricade the area with adequate barriers and place safety sign boards -          Excavated material shall be kept a minimum of 2 meters, Away from the edge of the trench -          The trench shall be kept safe and stabilized by providing sloping/benching -          All excavation works will be supervised by a competent supervisor. -          Proper housekeeping will be maintained on-site at all times to ensure that all pathways and edges of excavation are clear of any potential falling objects or obstructions. -          Proper housekeeping will be maintained on-site at all times to ensure that all pathways and edges of excavation are clear of any potential falling objects or obstructions.   -          The area Should be clean and tidy -          Tools and equipment do not keep or stacked on the access /egress -          Barricaded area -          Display safety signage   -          Use a dust mask -          Water showering and avoid dust