Flashcards
Demolition Flashcards Week 7
Cards in this deck (24)
- 1What are the four stages of demolition?1. Demolition Planning
2. Health and Safety Planning
3. Envrionmental Issues Planning
4. Demolition Methods - 2What documents are relevant to Stage 1 of demolition?BS 6187
Buiding Act 80-83 - 3What documents are relevant to stage 2 of demoltion?HSE Report
CDM 2015 - 4What documents are relevant at stage 3 of demoltion?BS 6187
Industry best practise - 5What doucments are relevant at stage 4 of demoltion?Observation exercises
Industry Best Place - 6What is BS 6187 and when was it last updated?BS 6187:2011 gives good practice recommendations for the demolition (both full and partial) of facilities, including buildings and structures. It applies to demolition activities undertaken as part of structural refurbishment and also covers decommissioning
- 7Summarise what is set out in BS 6187?Effective management
Identifying and establishing responsibilities during all phases
Acquiring a knowledge of the the site
Structural stability, temporary structural support, deliberate structural collapse
Managing environmental issues
Managing health and safety hazards
Carrying out risk assessments and planning the work accordingly - 8What is section 80 of the building act?Notice of demolishion plans to local authorities
- 9What is section 81 of the building act?Local authorities power to serve notice for demoltion
- 10What is section 82 of the building act?Notices under section 81
- 11What is section 83 of the building act?Appeals against notice served by local authorities under section 81
- 12What should be contained within the notice given to local authorities for demolition?Plans, work description (nature, duration)
Adjacent occupiers
Gas, electricity and other utilities surveys - 13When can a counter notice be issued and what will it contain?within 6 weeks of recieving the notice
- Conditions
- Shoring
- Removal
- Make good
- Repair - 14List some of the statuatory authorties that regulate demolition work?Highway
Water
Sewage
Electrical
Telecommunications
Gas
Rail - 15Why are CDM regs are important to Health and Safety?Assign job roles under CDM
Assign pre contract information PCI - 16What is required in the HSE report for demolition?High risk suveys for premature collapse
Mitigation - Structural design knowledge, methods and equipment selection
Structral surveys
Method statements and good planning
Temporary structures - 17What environmental strategies should be adopted?Waste managment strategies in accordance with regulations, prevention of undue consumption, reuse of concrete aggreagte, reducing land fill, recylcing softstrip, roofing and ties.
- 18What should all demo sites have in reference to waste managment?Audit of potential reclaimable and recycleable materials
- 19What should the waste managment audit allow for?Meet legislation requirments
Reduce waste disposal and cost
Maximise resources available and efficiency
Reduce landfill use and tax payments
Make better use of materials - 20What are the 3 main forms of demoltion methods?Long reach
Top down, floor by floor
Demoltion - 21What is Long reach demoltion?Use of machinery at ground level to reach up and strip buildings. Usually for 2-3 storeys max. Reduces needs for working at height and dangers of stripping the building from inside. Longest reaches of up to 43 metres, carrying weight of 3-4 tonnes
Quicker than floor by floor, cheaper - 22What is floor by floor demolition?Used on high rises where long reach is not suitable. Scaffolding and fall nets are erected, soft strip carried out (doors, windows, services. Asbestos removed if present. Tower crane often erected to lift machinery to working levels and lift heavy elements down. challenging and Requires lots of planning by engineers
- 23What is explosive demoltion?Use of controlled explosives on structural elememts, causes building to fall inwards, rubble is then removed. Takes many weeks to plan, requires exclusion zone, high security, quick once plans are agreed.
- 24What are the stages of an explosive demolition?Structural suvey
Hazardous material survey
Services investiagtion
Test blasts
Determining of exclusion zone
Security requirments
Viewing area managment
Safety managment on day
Demolition
Post demo survey of area
Post demolition client meeting
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- Quantity Surveying Flashcards on Demolition Flashcards Week 7, created by Connor Benning on 27/04/2019.
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- Connor Benning
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