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Demolition of existing boiler house
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Demolition of existing boiler house

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    Demolition of existing boiler house Demolition of existing boiler house Presentation Transcript

    • Course: Site Management Safety Training SchemeProvider: Area North Training & Safety Services Ltd. Venue: Area North House, Gateshead Participant: Anatoli Zhyzhneuski 7 June 2012
    • Works involved in boiler house demolition Existing boiler house 7.5 m width x 19.5 m length has to be demolished. The roof of the house has a sheet asbestos insulation and all heating equipment has asbestos lagging.The demolition will consist of the following works:1. Shutting down and removal of internal M&E services (water, gas and electricity)2. Removal of asbestos insulation and lagging3. Demolition of boiler house structureSeveral subjects of health and safety regulations are related to works, namely: Work at height Asbestos in the workplace Safety in demolition Etc. For all types of works the preferences will be always given to reasonably practicable equipment, which is producing lesser noise.
    • Work with asbestos Notification of work with asbestos The Notification of the enforcing authority is required at least 14 days in advance before commencing works and must be submitted with ASB5 Notification Form and a Method Statement. The following information must be included: Type of asbestos Amount Location Method of work Risk assessment
    • Contents of a method statement ASB5 Notification Form to HSE Asbestos Licence Waste Carriers Licence Method Statement Medical Certificates Risk Assessments Training Certificates Maintenance Records Daily Site Logs
    • Personnel involved in works with asbestos1 x Supervisor2 x Operatives1 x Machine operatorAll operatives employed at the site for asbestos related works will be fully trained and hold a current CSCS, CPCS cards & appropriate valid training certificates for work with asbestosAll works will be performed under supervision of supervisor who will act as ‘competent person’ and will monitor working performance and procedures and ensure that the works will be performed in accordance with method statement and risk assessmentWorking time - 8 am until 5 pmTime for the removal of demolition waste from site – 4.30 pm until 5.00 pm (timed to avoid school arrival and departure times)
    • Plant and equipment required for works with asbestos Telescopic materials handler Asbestos H class vacuum cleaner Air monitoring equipment Hand tools Respiratory protective equipment with P3 filter PPE (safety helmets, safety gloves, safety boots, safety goggles, ear protection) Protective clothing (Type 5/6 overall) Washing and changing facilities Storage for protective clothing Hygiene unit Skip for asbestos storage and disposal Skip for general construction wastage Asbestos warning signs Water spray equipment (water jets or similar) Scaffold*
    • *Work at height Asbestos removal contractor is required to have scaffolding erection and management qualifications OR Scaffolding contractor is required to have ancillary licence for asbestos work (Scaffold operatives will be required to have received basic asbestos awareness training) Ladder will only be used for inspection and short duration works
    • Work sequence for asbestos removal1. Type 3 survey must be curried out by minimum of two people2. Notification must be sent to HSE (14 days before commencing of works)3. As hazardous asbestos waste is produced, the site must be registered with the Environment Agency4. Written, site-specific plan of work must be kept on site and followed5. Installation of the scaffold6. Removal of the roof asbestos insulation with hand tools (some parts of roof structure will be taken down during asbestos removal process)7. Packing asbestos insulation waste into clear marked double waste bags8. Placing asbestos waste into separate secure skip (skip must be surrounded by fencing and warning signs will be placed on the fencing and skip itself)9. Dismantling of the scaffold10. Removal of asbestos lagging by use of blow lamp11. Packing of asbestos lagging waste into clear marked double waste bags12. Placing asbestos waste into separate secure skip13. Air monitoring shall be carried out during a period of asbestos work14. Waste shall be carried by a registered carrier and taken to a licensed or permitted site for disposal
    • Demolition worksIn accordance with Section 80 of the Building Act 1984, the six weeks’ noticemust be give to the Local Authority Building Control Department, because of demolition of a structure greater than 1,750 cubic feet will be carried out. Personnel involved in demolition work  1 x Demolition supervisor  2 x Demolition operatives  2 x Machine operators All operatives employed at the site will be fully trained and hold a valid CSCS, CPCS and CCDO cards All works will be performed under supervision of demolition supervisor who will act as ‘competent person’ and will monitor working performance and procedures and ensure that the works will be performed in accordance with method statement and risk assessment Working time - 9 am until 6 pm Time for the removal of demolition waste from site – 5.00 pm until 6.00 pm (timed to avoid school arrival & departure times, and working hours of offices located near construction site)
    • Plant and equipment required for demolition work 360 Degree Excavator machine Pulveriser attachment for excavator machine Impact hammer attachment for excavator machine Bucket attachments for excavator machine Telescopic materials handler Crushing station Hand tools Washing and changing facilities Hygiene unit Skip for general construction waste Demolition warning signs PPE (safety helmets, safety gloves, safety boots, safety goggles, ear protection) Respiratory protective equipment with P1 filter Water spray equipment (water jets or similar)
    • Work sequence for demolition process1. Removal of materials, that as recyclable materials (pipes, boiler, metal parts of equipment, door, windows, internal M&E services, etc.)2. Pre-weakening of building structure (impact attachment of excavator machine will apply above the level of the house basement)3. Demolition of upper structure (process will start from northern wall of boiler house and will be moving along the building to the south wall)4. Demolition of the floor slab and foundation (structure will be dig out or lifted out and broken down into manageable sections)5. Crushing the demolition waste into manageable pieces (crushing station will be used from 4 pm until 6 pm)6. Loading the demolition waste into skips or haulage contactor trucks
    • Precautions during demolition work Precaution shall be taken against structural collapse of building during application of excavator’s impact hammer attachment for initial pre-weakening of structure Precaution shall be taken during demolition of southern part of building, especially the southern wall, as this wall is closely located near existing 2.15 m boundary flint wall. The southern wall of building shall be deliverable pulled over to north direction Protection of public, particularly the car parking and pedestrian pathway along southern wall of construction site (warning signage shall be erected on flint wall in area of demolition works) Protection of construction and maintenance personnel working on site (the demolition signage shall be placed on safe distance from building, marking the edge of restricted area) Protection of overhead and underground services