As we all know, every building or structure design has a lifespan which is known as design life. Upon completion of the building’s design life, which lasts 80–100 years, the structure becomes unsafe for habitation and adjacent structures. To reuse the space it is necessary to demolish the building or structure.
The process of dismantling or demolishing a building after it has reached the end of its useful life through planned and regulated operations is known as building demolition. Specific safety rules for dismantling and disassembling a building are outlined in this article.
1. Demolition Permit
- The structure to be demolished, as well as its surroundings, should be thoroughly analyzed before the actual demolition operation begins.
- When preparing a demolition plan, the safety of neighboring structures must be considered.
- The Chief Engineer must approve the final operational sequence plan.
- If necessary, make sure to obtain permits from the appropriate authority and post them prominently on the site before demolition work begins.
2. Precautions before demolition
- Property must have warning signs, and any openings providing access to structures must be manned or barricaded, except when personnel or equipment are passing through.
- Warning lights should be installed on or above all barricades at night.
- After notifying the relevant authorities and service companies and obtaining clearance from them, all service lines – including gas, water, electricity, steam and other utilities – must be shut off outside the property line.
- When work is stopped, security personnel should be on duty to keep the public away from the rage area.
- Workers must obtain the necessary safety equipment before starting work.
3. Public Protection
- Maintain appropriate safety distance for the safety of the general public. Warning signs must be clearly posted and adequately labeled.
- Every road or footpath adjacent to the demolition site must be cordoned off or secured.
- Be sure to install adequate lighting on sidewalks to provide safety.
4. Precautions during demolition
- Before starting work, any fragile materials such as glass and fiber will need to be taken out.
- Demolition debris must accumulate within the safe limits of the structural member.
- There should be adequate ventilation and natural or artificial lighting for workers.
5. Dispose of demolished material
- Whenever possible, no substance shall be thrown or dropped from a height exceeding two metres.
- Specialists should use containers or suitable slopes, ropes and tackle to lower the collapsed debris.
- If slopes are available, their angle to the horizontal should be more than 45 degrees, except for a hole for receiving the material.
- The guard rail should surround the top opening of the chute, where the material is fed.
- Dropping of debris from floor gaps is permitted when strictly necessary.
- When using this approach, prevent overloading the floor.
- Remove debris as quickly as possible to make room for a safe and functional workplace.
- Remove all demolished debris from the area to avoid disturbance to the general public.
6. Caution during mechanical demolition
The following additional safety measures should be in place when using mechanical equipment such as power shovels or weight balls to complete demolition:
- There should be a barrier around the demolition site that is at least 1.5 times the height of the wall.
- During building demolition, no worker will be allowed to enter while operating mechanical equipment.
- Keep the gadget in the correct position to prevent damage caused by falling debris.
- When operating, the mechanical equipment must not cause damage to nearby structures, electrical wires, etc.
7. Other safety precautions
- When a structure needs to be demolished in a populated area, it is best to avoid carrying out demolition operations at night.
- To protect workers and the general public from injuries, there should be additional safety measures such as working lights, red warning signs and security guards if demolition work is to be carried out at night.
- Avoid demolition work during storm or heavy rain.
- Demolition contractors in preston Warning devices must be installed nearby to alert employees to any potential hazards.
- Workers must have safety equipment such as celluloid-lens goggles and industrial safety helmets.
- Toolboxes and construction sheds should protect workers from accidents caused by falling debris.
- While removing RCC steel construction, workers should wear gloves made of suitable material as there is a risk of injury to their hands.
- Adequate protection in the form of screens and overhead covers should be provided to protect workers and the general public from injuries.
- Workers should use safety ropes or belts when working at high heights.
8. First aid preparations
- at work, Demolition Contractors in Sunshine A copy of all rules and information regarding injuries, accidents and first aid must be displayed.
- Depending on the extent and type of activity, a person with first aid training should be present at the work site to provide and supervise first aid to casualties.
- He will keep a roster of people capable of performing first aid duties.
- The location should have adequate first aid kits, a cot and stretchers with supporting equipment.
- The first aid assistant may be given a phone marked with the hospital phone number.
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To avoid accidents and guarantee a safe working environment, basic safety rules must be strictly followed in demolition methods. Following regulations, including conducting detailed assessments, using proper equipment, and placing a high priority on worker training, significantly reduces the safety of people and property during demolition projects.