The Control Of Dust And Emissions Construction Essay

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This outline method statement is produced in accordance BS6187 Code of Practice for demolition along with considerations to The Best Practice Guidance to The control of dust and emissions from construction and demolition.

2. Scope Of Works

This document covers the demolition of the following building.

This document covers the following matters:

M&E Services and Structural surveys

Soft strip structures of internal fixtures and fittings

Demolition of structures

Transporting and crushing on/off site of suitable materials

Installation of all mains services

Preparation of estate roads

3. Working Hours

DOTLAMB standard working hours are 08.00 - 18.00 Monday - Friday. Weekend working will only be arranged if necessary with the Client and Local Authority. DOTLAMB understands that the local authority has restrictions on site working hours (shown below). DOTLAMB concludes that our standard working hours fall within the prescribed timings.

Monday - Friday 07.00 - 19.00

Saturdays 09.00 - 12.00

Sundays and Bank Holidays No Work

4. Legislation and Codes Of Practice

All work will be carried out in accordance with current legislation and standards with particular regard to the following:

The Health & Safety at Work etc Act 1974

The Construction (Health, Safety & Welfare) Regulations 1996

The Control of Asbestos at Work Regulations 2006

The Asbestos (Licensing) Regulations 1998

Working with Asbestos Insulation etc (2nd Edition) 1987 Regulations

The Control of Lead at Work Regulations 1998

Control of Pollution Act (Amendments) 1989

The (Lifting Operations & Lifting Equipment) Regulations 1998

Health and Safety at Work Regulations 1999

The Control of Substances Hazardous to Health Regulations 2002

The Construction (Design & Management) Regulations 1994

The Management of Health & Safety at Work Regulations 1999

Personal Protective Equipment at work Regulations 1992

The Construction (Head Protection) Regulations 1989

The Health & Safety (Safety Signs & Signals) Regulations 1996

The Noise at Works Regulations 1989

The Health & Safety (First Aid) Regulations 1981

The Workplace (Health, Safety & Welfare) Regulations 1992

The Reporting of Injuries, Diseases & Dangerous Occurrences Regulations 1995 (RIDDOR)

The Provision & use of Work Equipment Regulations

BS6187 Code of Practice for Demolition

BS5240 Industrial Safety Helmets

BS2092 Industrial Eye Protectors

BS5228 CP for noise control on construction and open sites

5. Pre-Commencement Works

Due to the complexity of the vetch field stadium, DOTLAMB believe it is necessary to allow a minimum of a 4-week pre-commencement period for surveying, design and approval of works prior to demolition works. During this period DOTLAMB D&B Contractors envisage carrying out the following work.

Correlation of existing drainage with service plans and planning for removal, capping and protection of drainage

Survey of existing statutory services, meetings with client representative and statutory providers

Structural surveys of buildings to be demolished

Design of temporary works to facilitate demolitions

Dilapidation survey of surrounding buildings/roads

Development of traffic management plan

6. Health, Safety and welfare facilities

Temporary welfare facilities will be provided for and by DOTLAMB D&B Contractors sit staff and operatives in a location agreed with Swansea City Council and between DOTLAMB and the client's representative.

DOTLAMB D&B Contractors will provide a qualified first aid representative and a suitable first aid box.

All plant operators will be CITB (Construction Industry Training Board), CPCS (Construction Plant Competence Scheme), CTA (Certification of Training Achievement), registered and will carry copies of their certificates on their persons for inspection.

All site personnel will be issued with the necessary PPE (personal protective equipment) and will be expected to wear it at all times on site. Special PPE will be issued to personnel as necessary.

During the initial site induction all site personnel will be made aware of the clients site rules, accident reporting and site emergency procedures. These will be adhered to at all times while on site.

7. Public and Employee Protection

7.1 Services

Services are known to exist in the footpaths and roads adjacent to the fetch field site and enter the site at designated areas. All services to the structures to be demolished are to be disconnected at or beyond the site boundary prior to the commencent of works. DOTLAMB D&B Contractors propose to spend a pre-commencement period working with the client and all statuary undertakers to ensue all services are identified and isolated or their positions marked/recorded as required.

Services within the site boundary that are to remain live will be assessed and protected as necessary. Carefully controlled hand excavated trial pits will be carried out as necessary to provide and verify the exact location and nature of recorded services.

7.2 Site perimeter

Warning notices and restricted area notices will be positioned at vantage points, solid barriers will be in place to all site boundaries through the provision of either timer hoarding, solid heras type fencing or utilization of boundary walls.

The inner perimeter of the working area is to receive a further block and mesh hoarding as necessary to mark active demolition zones or protected services. During the demolition of the structures DOTLAMB D&B Contractors will implement the management of pedestrians and traffic jointly with the client, Swansea city council and the local highways agency.

Access and egress to the workforce will be via designated routes. These will be agreed and implemented with the site supervisor. the Vetch Field site lies within the city centre of Swansea with housing and a shopping complex nearby with road systems in place. The existing road system is to be followed in accordance with the traffic management scheme to be adopted. All plant will be delivered to site via low loaders, with no heavy plant movements being carried out on existing roadways to ensure the road surface and also existing below ground sewers and drainage is not damaged through displacement.

7.3 Workforce protection.

Areas of risk beneath the demolition areas will be cordoned off and clearly segregated from third parties. Barriers are to be erected complete with warning signs. All temporary barriers and signs will be constantly checked and maintained before and during each working day by the site supervisor.

All areas of safety will be constantly monitored and evaluated with attention to detail being given the utmost concern at all times.

7.4 Personal Protective Equipment (PPE)

All site personnel will be issued with standard personal protective equipment. Each operative will have general protection issued by the site supervisor depending on the work at hand. Safety wear will comprise of the following:

Hard hats, ear and eye defenders, nasal protection against high volume dust and debris, dermal protection to exposed vulnerable areas, footwear against risk of penetration and impact and high visibility vests/jackets.

8. Existing Construction

The Centre (south) Stand - concrete / steel framed construction

The West Terrace - concrete / steel framed construction

The North Bank - concrete / steel framed construction

The East Stand - concrete / steel framed construction

Underpass - underground concrete construction

9. Demolition Overview

Concrete / steel framed construction

Following soft stripping and recovery works the safest demolition method for a structures and sub-structures of this size and construction is remote demolition using specialist demolition excavators with attachments such as pulverisors, rotational grapples and buckets to demolish the structure and process recyclable materials for removal off site via back propping lorries. This method minimises the amount of work undertaken externally by demolition operatives.

9.1 activity wit risk hazardous potential

Dust, fumes and noise - risk assessment attached

Moving plant and machinery - risk assessment attached

Manual handling - risk assessment attached

Uncontrolled collapse - risk assessment attached

Working at heights - risk assessment attached

Contact with services - risk assessment attached

Materials - risk assessment attached

Fire - risk assessment attached

Security - risk assessment attached

Mud on surrounding roads - risk assessment attached

Traffic - risk assessment attached

Resources - risk assessment attached

Contamination / pollution - risk assessment attached

9.2 Resources

PLANT

LABOUR

High reach and standard reach 360-degree hydraulic excavators fitted with demolition attachments.

Crushing Plant.

Loading shovel.

Container skips.

Scaffold protection.

Mobil access platforms.

Back propping lorries.

Road going crane.

Site manager.

Site supervisor.

Demolition operatives.

Plant operatives.

Lorry drivers.

Scaffold erectors.

9.3 PPE to be used

Safety Helmet Hi-Vis Clothing Ear Protection

Gloves Respirators Safety Boots

Coveralls Eye Protection Dust Masks

Safety Harness

10. Methodology

10.1 General

Careful programming of all elements i.e. soft stripping and demolition is to be adopted with areas being handed over as they are cleared for the next operation. Sectional completion of areas will enable the works to progress in the manner as described below.

10.2 Site establishment

Upon arrival operatives are firstly to attend the site induction course offered by the client. A further induction and toolbox talk is to be given by the site manager identifying specific items relevant to the upcoming works programme. After completion operatives are to then put on suitable PPE and transfer all necessary equipment to the working area. All power tools to be used are to be either 110v or cordless. A generator is to be used for 110v power.

10.3 Soft strip material removal

The materials will be loaded directly into container skips. A 360-degree excavator may offer assistance at ground level in ensuring full and secure loads. The works are to progress in a section-by-section manner through each stand until complete. As the skips are filled radio or phone contact is to be maintained between the ground operative and the floor foreman. Works will cease whilst skips are swapped or rearranged to enable continuous filling. Access and egress of the site are to be fully supervised by the ground operative at all times. Dampening down measures in the form of a hand held water spray system may be adopted should the need arise. All run off water will be channelled to the nearest low point of the stands footprint. The constant monitoring of dust will be carried and all necessary suppression will be implemented as determined by the site supervisor. Included in the soft strip will be the removal of the grounds flood lights these will be disconnected at the base of the structure and with use of a road going crane lowered on the pitch where a team equipped with gas and air torches will cut the supporting structure into manageable sections ready for removal off site to a recycling facility. All materials are to be removed to licensed disposal points via sheeted lorries will full documentation being supplied upon completion of the works.

10.4 demolition of structures

Once free of fixtures and fittings the structures are to be demolished by the 360-degree excavator fitted with suitable demolition attachments. Assistance is to be offered by the attending 360- degree excavators fitted with suitable attachments. All demolition, processing, concrete and steel cutting works are to be dampened down to act as a dust suppressant during the works. Working from one stand to the other in a systematic section-by-section manner the pulverisors will effectively dismantle the roof sections of each stand into manageable pieces.

The resulting dismantled concreted and steel roof sections will be allowed to fall onto the lower cordoned off area. As the works progress the resultant associated walls and columns are to be removed. Once the relevant section of roof has been removed and has had all its structural support properties removed. The rear and side walls of each stand are to be pushed inwards onto the floor by a 360-degree excavator this again will be completed in a section-by-section manner. At ground level the resultant demolition elements are to be processed by the assisting 360-degree excavator into their separate waste/recycle containers for removal and processing. Materials are to be loaded directly into awaiting container skips and are to be removed at periodic intervals to promote a clean, tidy and safe working environment. Separation of all crushable materials will be an ongoing process with stockpiles created at suitable points awaiting the commencement of crushing works.

10.5 demolition of substructures

The underpass and ground floor areas of the stands are to be broken out using 360-degree excavators fitted with hydraulic breakers, ripping hooks or buckets. Once the slabs have been pulled up and stockpiled by the excavator the materials are then to be reduced in size, if necessary, using 360-degree excavators fitted with concrete pulverising attachments.

10.6 Site clearance

Site clearance will consist of all demolition materials being removed, clearance and cleaning of plant and material storage areas. All plant to be removed on low loaders via roadways with the exception of one 360-degree excavator for the installation of mains services and preparation of estate roads. A general sweep of the site by all operatives for foreign objects and debris. Site boundaries are to remain until the installation of mains services and supporting estate roads are constructed/prepared.

10.7 installation of mains services

The mains services will require trenches. The 360-degree excavator will excavate these once the surveyors have marked the areas to be excavated. Once trenches have been excavated the mains services can be placed in to the trenches, connected and caped where required then backfilled and recorded for protection for both public/workforce and the services themselves.

10.8 preparation of estate roads

The preparation for estate roads will commence on the completion of the installation of mains services and will consist of excavating the required routes set by the client and marked by a team of surveyors, routing drainage as required and routing electrical services for the installation of streetlights as required.

This method statement is to be read in conjunction with the associated risk assessments attached.

11. Coshh

DOTLAMB D&B Conttractors will use the following products on site

Diesel fuel

Lubrication grease

Hydraulic oil

Engine oil

All products will be delivered to the vetch field site via a fuel tank operated by a fully trained lorry driver equipped with relevant PPE. Diesel fuel will be directly pumped into plant fuel tanks from the tank. Oils will be dispensed from containers into measuring jugs then directly into plant. All supplier data sheets will be held on site.

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