6398.02 Energy UK H&S Conf Leeds 22/9/16

Wayne Bagnall Ltd t 07712 767744 & www.waynebagnall.co.uk 1

Safety in Demolition 22.9.16

Wayne Bagnall MBE

MSc CMIOSH MIDE MCMI

BS 6187:2011, CDM 2015; SKTE plus

case studies on full & partial demolitions

– 1984 Director of medium sized Asbestos & Demolition company

– 1995 Authored CITB Demolition & updated Asbestos module

– 1996 Part authored BS6187: 2000 Demolition Code of Practice

– 1997 MBE awarded for “Services to the Building Industry” by HM Queen

– 1999 Set up an independent Asbestos & Demolition Consultancy

– 2000 Masters degree in Construction (H&S) Mngt, Liverpool JMU

– 2002 Authored new HSE demolition guidance

– 2004 Shell, BP, Sellafield “WAGR & Calder Hall Colling Towers” advisor

– 2005 Assisted HSE launch of The Asbestos Regs 2006

– 2006 BAE Systems asbestos & demolition UK consultant

– 2008 Supervised major rail/road bridge demolitions for Network Rail

– 2008 Appointed to Institute of Demolition Engineers National Council

– 2009 UKATA Registered Member (UK Asbestos Trainers Association)

– 2010 Contributor in the revision of BS6187 Demolition code of practice

– 2012 Appointed Demolition Consultant on one of the largest projects in the UK

– 2013 Delivering training to HSE & Estates Excellence programme

– 2014 Provided RWEN Power with demolition training

– 2015 Delivered papers to National IDE conferences in Leeds & London

– 2016 Expert witness appointments for major corporations

But, before

all that I was

part of the

‘Family

Demolition

Apprentice

Scheme’

Me during school

holidays & weekends.

Operating the KL44

Mobile Yard Crane,

scrapping 3 Dum

Barges at Liverpool

Docks

BS 6187: 2011

Code of practice for full

and partial demolition

Updated & incorporates structural

refurbishments requiring demolition; plus

many new annexes & figures

[Old Codes: BS 6187: 2000 & 1982]

Navigation

aid

All 20 clauses

BS 6187: 2011 Code of practice

for full and

partial demolition

5. Planning and managing projects (page 13.)

• Route map with table provided: – planning; knowledge, compliance, programme etc.

– risk management; risk assess, controls, demo plan

– method statements format, methods & sequence

– competencies & training

– management & planning should translate to site

• Thorough planning = safe & effective projects: – responsible clients providing adequate PCI & time

– competent contractors with good supervision & controls

• Caution note: – ensure time & follow the principles in CDM 2015

– ensure all appointments are adequately assessed for SKTE (competence) / organisational capability & capacity

6398.02 Energy UK H&S Conf Leeds 22/9/16

Wayne Bagnall Ltd t 07712 767744 & www.waynebagnall.co.uk 2

Planning Demolition

2 or more contractors¹

(Part 2)

Client (PD¹) Checks², scope & tender docs, PCI etc

(Part 3 General duties)

Commercial & Domestic Clients

(Part 2 Client duties)

Designers input & duties

¹Appoint PD & PC

[C/R / PD takes domestic duties]

Service disconnections L.A. Planning consent Section 61, Bldg Act, S80 & Environment

Agency (permits)

Managing Demolition update F10 if applic, CPP & BS6187:

2011, check all permits L.A. Bldg Act; S81, S61..

Demolition Contractor (PC)

= CPP to manage work (Part 3 & 4)

Management; leadership &

worker engagement + H&S File¹

Contractors or S/C SKTE²

Check if Notifiable?

(Part 2)

Notify details Schedule 1

F10

30 days + 20 persons or 500 person days

SKTE² appointments check organisation

capability (SSIP)

Competence has no legal definition therefore CDM 2015 replaces with SKTE²: S = Skill K = Knowledge Essentially = T = Training Competence E = Experience Org capability pre-qual assess, members of SSIP = Safety Schemes in Procurement Forum

NFDC Resurgam House Martin Wilson

Paradise Current NFDC President

Hemel Hempstead

Herts &

HP2 4TF Howard Button

Chief Executive

Tel: 01442 217144 Organisation indicator for

Fax: 01442 218268 minimum industry standards

Email: [email protected]

Need advice? = Institute of Demolition Engineers

• Set up 1976 (40th year celebrations)

• Support & recognition for demolition engineers

• Improved status with seminars & papers etc

• Individual (competence) indicator

• Membership route: 01634 816255 www.ide.org.uk

– Min 5 years experience application + 2 exams in London

– 2 year portfolio followed by professional interview

– 11.08 Wayne appointed to Council & NW Co-ordinator

– 2/15 & 9/15, presentations by Wayne Bagnall

– Next Seminar is in London on 30 September 2016

Institute of Explosives Engineers

European Federation of

Explosives Engineers

Explosives Engineers (Shot-firers etc)

Explosives Engineering standards & training

Meeting in London 15/7/16 = NEW ALL Smart Cards

7. Knowledge of the site (page 29)

• Route map with 2 tables: – desk & on site studies

– responsibilities for acquiring & providing info

– condition surveys; adjoining buildings & dilapidations

– Table 5; key features & potential hazards (page 36)

– reports & dissemination of knowledge

• Useful reminder to clients of their CDM duties – Regulation 4. Pre-construction information (PCI)

– however what about poor surveys e.g. asbestos etc.?

• Caution note: contractors that ask too many questions often don’t get the job!

beware of unknown or silent areas in surveys / reports

6398.02 Energy UK H&S Conf Leeds 22/9/16

Wayne Bagnall Ltd t 07712 767744 & www.waynebagnall.co.uk 3

2 key steps to safely control & minimise

asbestos exposure risks during demolition

Operative(s)

Mesothelioma

Demolition or refurbishment

Client Refurb & Demolition

Asb Survey to HSG264

1. ensure R&D Survey is provided

2. communicated, understood & controlled

Part of PCI C/R or PC CPP + RA/MS

Client & PD (if applic) PCI

Initial inspection of the manhole

revealed brick lining only

Core revealed asbestos lining! Asbestos survey gaps on a Calciner (CaO)

Example where POOR surveys can result in

health risks & costly removal / remediation

8. Decommissioning procedures (page 38.)

• Route map with 4 sections: – management & supervision

– decommissioning activities

– mothballing

– time lag effects

• Useful for checklist identifying steps needed, but. – doesn’t explain the importance of competent advice?

– where does decommissioning end & demolition start?

• Caution note: ensure clear understanding & who is responsible for what!

all services terminations should ideally be air-gapped

Tank ID, products, clean, vent & demo; SSoW & RA/MS

HCL cleaned & vented Atmosphere? / Access permit

Solid Sulphur Tank? Rapeseed Oil Tank?

9. Identifying structural hazards (page 42.)

• Route map with 3 sections: – general

– ID of structural form & features

– Examination of structural condition

• Identifies how to avoid uncontrolled structural collapse. – good route map as prompts

– Cast columns, extremely good compressive strength

– talks about unbalanced thrusts = actions & reactions etc

• Caution notes: doesn’t cover hybrid/mixed construction!

ensure understanding of latent defects / condition!

recognise when you need competent advice!

• Route map, tables & figures in 5 sections: – defines the terminology, design and management of areas

– explains the principles as part of the safety regime

– good use of diagrams

• Exclusion zones generally comprise of 4 areas: 1. plan area also remember to designate:

2. designed drop area “safe

3. predicted debris area working

4. buffer area spaces”

• Caution notes: not prescriptive, relies heavily on experience!

doesn’t define types of barriers & when needed

plus often poor at defining safe working spaces / routes

13. Safe working spaces & exclusion zones

6398.02 Energy UK H&S Conf Leeds 22/9/16

Wayne Bagnall Ltd t 07712 767744 & www.waynebagnall.co.uk 4

Figure 12

BS 6187: 2011 Clause 13

Exclusion zone

& its 4 parts

(typical for controlled

explosives demolition)

Demolition Techniques Cl 17 - Route map

BS 6187: 2011

Fig 2; see page 2

Typical arrangement

for a specialist

demolition rig high

reach 360° excavator

See also clause 17.6

High-reach machines

Cl. 18 Material handling &

processing: 20m high roof

Edge protection & chute

Barried exclusion zone below;

but this needed to be larger

Demolition

Methods

cl19 - Route Map

Regulations Regulations Regulations

App. Code

of Practice

L153 Guidance

(no ACoP yet)

App. Code

of Practice

Health and Safety at Work Act 1974

The Construction (Design & Management)

Regulations 2015 [6/4/15 replaced CDM 2007]

Guidance Guidance

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Wayne Bagnall Ltd t 07712 767744 & www.waynebagnall.co.uk 5

CDM 2015 Reg 19; stability of structures

1. All practicable steps must¹ be taken to prevent danger to any person from any structure which may become unstable or is in temp state of weakness or instability does not collapse².

2. Any buttress, temporary supports or structures must¹ be designed, installed & maintained so as to withstand any foreseeable loads imposed.

3. A structure must¹ not be loaded as to render it unsafe to any person

Notes:

¹CDM has removed the word “SHALL” & substituted with “MUST”

²Excess loading or pre-weakening may result in a premature collapse

Section 78 Dangerous building notice – C/R appointed but…..

S78 Dangerous building notice; C/R caused unplanned collapse

CDM 2015 Reg 20; Demolition or dismantling

1. The demolition or dismantling of a structure, or part

of a structure, must be planned and carried out to

prevent danger or, where it is not practicable to

prevent it, to reduce the danger to ALARP¹

2. The arrangements for carrying out such demolition

or dismantling must be recorded in writing² before

the work begins.

Notes:

¹ALARP = As low as is reasonably practicable

²Clients must ensure this is undertaken

2 x Demolition Case Studies

1. Conventional / Full Remote Demolition

1980’s Printworks, London Docks

or

2. Partial Demolition

Dismantling a post tensioned RC Quay

1. Former News International Printworks

London Docks, Wapping

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Demolition in 9 phases North & South buildings are connected

but different construction types; (1 - 4) traditional steel frame

& (5 - 9) suspended steel frame ramp for loading bays Phases 1 – 4: Remote mechanical demolition

Demolition Case Studies

1. Conventional / Full Remote Demolition

1980’s Printworks, London Docks

or

2. Partial Demolition / dismantling

1960’s post tensioned RC Quay

2. 1960: Original 3 Piles, 4 Primary Beams, Canoes & Deck

2. 1960’s Post tensioned concrete Quay Demolitions

Dismantling & replacing a 30m x 304m quay 2. Exposed post tensioned RC primary beams