Shotfiring Presentation

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    Shotfiring update

    What makes you think it wont blow up in your

    face?

    Mines Inspectorate,

    Drayton & Graham

    Terrey

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    Welcome

    Introductions

    Safety for today Mobile phones

    Program for today Objectives

    Timing Morning tea

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    We all know coal

    mine shotfiring

    can be tricky

    (Insert coal fireball clip

    But were here today following a specific incident that happened not too far from here)

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    Drayton Coal Mine 13km

    south of Muswellbrook Off Thomas

    Mitchell Drive west off the New England

    Highway Adjacent to Mt

    Arthur

    NNW of Bayswater

    WNW of Lake Lidell

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    One dragline, excavators,

    sizeable truck fleet

    Drills and

    shot

    crews

    +150 shots a

    year Tight controls

    on shots

    Extension approved to

    south

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    Commenced 1983, approx 13km south of Muswellbrook Currently produces around 5Mt thermal coal for export and

    domestic use Approx 300 employees

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    The Drayton Incident What would you do if

    You turned up to finish loading a shot from the previous day and found the emulsion had fizzed up out of the blasthole,

    and Stemming had been ejected Some signal tube had been ejected and showed signs of

    having been heated Appeared to have finished reacting, and You knew it wasnt a hot hole, and the ground was not

    reactive

    There was

    some

    condensation

    on

    the

    drill

    cuttings The hole collar felt hot

    Does your Explosive Management Plan tell you what to do?

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    A nice July morning

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    The dragline operator reported a puff of smoke earlier

    What the?

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    The EMP was being implemented Problem detected in pre start inspection The area secured

    Unauthorised personnel kept away Manager called, together with D&B Supt

    Managers decision

    to

    take

    further

    action He was consulting with experienced and responsible

    personnel

    Cause being considered prior to photographing and leaving to consider action

    Detonation occurred without warning

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    Consequences (after Emergency Response

    Plan initiated

    &

    run

    well)

    Three injured taken by helicopter to Newcastle

    hospital, one to local hospital and one remained on site with paramedic assessment

    Notifications Rest of shot fired later that day

    all back at work

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    Follow up action All blastholes

    treated as potentially hot, requiring

    extra shot crew members for testing

    Reexamination

    of

    the

    nature

    of

    premature

    detonations & Independent investigation

    Review of Code of Practice for Elevated

    Temperature and Reactive Ground, involving Orica Questioning the standard

    testing requirements

    This had not shown a problem in the past no ground

    had been considered reactive, including the seam intersected by the blasthole

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    The ground had not been considered

    reactive before and it had looked like any reaction had

    finished on the morning of Friday 23 July 10 The blasthole

    had been drilled 12 days prior to

    loading Blastholes

    were checked prior to loading two

    adjacent blastholes were

    venting

    and

    temperature checks showed temps of 29 0C no sign of venting in the blasthole

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    Blasthole

    loaded

    Fortan 12 Energan

    (uninhibited ANFO and

    emulsion) Primed with two Pentax PPP primers and two

    Excel non electric (signal tube or Nonel) detonators

    Blasthole closest to free face

    Later found to be in broken ground During the investigation the blasthole

    showed a temperature of 80 0C

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    18Emulsion can burn before it detonates

    18

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    New processes implemented

    All blastholes

    require temperature checks

    Review by geologists of seam data for reactivity risk potential, and advice to D&B Engineer

    Daily drill & blast board

    coordination involving D&B Engineer (more later)

    Flowchart of Code procedure for elevated

    temperature &/or reactive ground enlarged, printed off and displayed in the Shotfirers

    and D&B

    Supervisors

    room

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    Overarching Flowchart

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    If this happens do x But if the other

    thing happens do y

    Flowcharts help decisions

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    Determining risk of

    reactivity at existing site

    Reactivity detected do

    this, or Reactivity incident, do

    the right column

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    Determining risk of

    reactivity at greenfields site

    Slightly different

    approach

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    Existing sites

    From the Code Reactive ground

    actions, but What does reactive

    ground

    mean?

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    EMP reviewed Reviewed by site personnel

    Explosives Management Plan Procedures Rules

    Guidance Reviewed, independent with prior site experience

    Paperwork verified with individuals Involving a group session with site personnel

    Easy to add to what already exists

    (still progressing,

    more

    later)

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    Code of Practice for Elevated

    Temperature and Reactive

    Ground

    Presentation byORICA

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    Explosives Management Plan

    Systematic management of the risks

    associated with

    the

    use

    of

    explosives

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    CMH&S Act s23 in part

    (3) A health and safety management system must

    include:(a) system elements (which must include, but are not

    limited to, health and safety policy, risk management, training and competence, information control and system evaluation), and

    (b) any

    major

    hazard

    management

    plans

    required

    for

    the coal operation under Subdivision 2, and

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    Explosives (Major Hazard) Management

    Plan Is part of the sites health & safety management system Demonstrates the duty of care, following due diligence,

    for a major hazard Required by mine safety legislation, as well as general

    OHS legislation Mandated by AS2187.2 Use of explosives, Appendix A Takes account of relevant standards, codes and

    guidance material Features:

    Aim, plan, implementation, monitoring & improvement Supported by procedures, rules and guidance

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    EMP structure Aim

    Policy, scope, definitions, references Plan

    Consultation, risk

    assessment,

    procedures,

    forms,

    responsibilities, training, records

    Implementation General procedures, supervision, magazines, transport,

    emergencies, special procedures Monitoring

    Stock control & security, blast monitoring and performance data, reviews & audits

    Improvement Improvement decision making

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    Shotfirers responsibilities

    Disciplined practice for those with the

    lives of

    others

    in

    their

    hands

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    Shotfirers Must be licensed under Explosives legislation and

    listed in site register

    statutory tickets Have responsibilities under the sites Explosives

    Management Plan for Reviewing blast designs and implementing risk

    management for on/off site impacts Shot crews and any others in the area Checking types and quantities of explosives used, stored

    & handled

    Magazines, transport and related accessories/ equipment Site preparation, priming, charging, stemming, connecting, firing and dealing with misfires

    Disposal of unwanted explosives

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    Shotfirers Have the Mine Managers authority for explosives

    use Are on the ground and are part of the operation

    team Supervise shot crews and maintain consistency & control Fire the shot

    So they call practices and any changes to the shot plan After checking with their Supervisor Ideally after checking with the D&B Engineer

    Notifying Supervisors about any consequences out of the norm

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    36

    Shotfirers

    beware geology!

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    37It is often easy to miss geology

    37

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    Whats different about this blasthole?

    38

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    Geology & face conditions

    39

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    Nice morning tea?

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    D&B Engineers qualifications

    Supporting

    the Shotfirer

    does the D&B Engineer tell the

    Shotfirer

    what to do?

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    Drill & Blast Engineers

    Are responsible for

    Blast planning & coordination Compiling relevant information eg

    geological

    information

    Blast plans that comply with airblast

    and ground vibration limits, and which prevent flyrock, while

    managing throw

    &

    fragmentation

    Investigations and reports Monitoring and improving the EMP

    Coal Mine Health and Safety

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    Coal Mine Health and Safety Regulation 2006

    37

    Contents of major hazard management plan: explosives management plan

    For the purposes of section 36 of the Act, a major hazard management

    plan in relation to a major hazard comprising hazards arising from the handling of explosives must make provision for the following matters:

    (b)the person who designs or initiates a shot must ensure that fly rock does not present a risk to people (whether at the coal operation

    or

    not),

    (c)

    the use of explosives only by people who are licensed (d) keeping [of] a [licence] register (e) Cooperation between the operator and any [licensed] personto

    ensure safety

    of

    storage,

    handling,

    transportation

    and

    use

    of

    explosives

    44

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    Drill & Blast Engineers Have the sites GMs authority for blast planning

    and operational coordination

    Must access data and information eg geology that is not easy for a Shotfirer

    to get Are often (?) unable to get out on the shot So they must be readily contactable Must be given good feedback about shots

    Any variations

    or

    unusual

    conditions Any unexpected impacts or results

    Fine tuning of powder factors and blast patterns

    Must think like a blasthole

    D d ill & bl b d

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    Draytons drill & blast board

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    What is a misfire?

    Did the shot do something other than going to plan?

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    Misfires must be reportedCoal Mine Health and Safety Regulation 200656

    Notification of certain incidents at or in relation to

    coal operations: section 110 (1) (c) of the Act

    (n) an uncontrolled

    explosion

    or

    fire

    or

    a misfire

    of

    explosives

    (including shot fails to fire, misfire detected in post blast inspection, or misfire detected while excavating muckpile)

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    Renewing your UHL and BEULPresentation by WorkCover

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    Explosives Licenses D.I.I. Muswellbrook Singleton

    Explosive Licenses Update Dave Barker Bill Brooks

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    UHL Letter Expiry Notification Template

    Frequently Asked Questions

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    Why do I need to lodge a new application and not a renewal?The Explosives Regulation 2005 deliberately omits a renewal process to ensurerigour in the licensing scheme and the capture of all relevant currentinformation. Consequently all existing Unsupervised Handling Licence (UHL)holders and Explosives Licence holders must lodge a new application.

    Am I able to continue to operate after my licence has expired if I have

    lodged an application?The Regulation does not provide for a continuance of operation beyond theexpiry date of the licence. The licence holder must cease all operations until asubsequent licence is issued and received. To reduce the possibility of you

    being unable to operate, WorkCover is sending out Licenser application packs3 months prior to your Licenses expiry date. This ensures enough time is givento allow other State and Federal authorities to process security checks.Will my new licence have the same licence number as my previous

    licence?Yes, your licence will retain its existing licence number.Why do I need to apply for an Unsupervised Handling Licence again?The UHL is a prerequisite for all explosives licenses, with the exception of a

    Single Use Fireworks Licence. The licence confirms that the individual haspassed a national probity assessment undertaken by NSW and Commonwealthpolice and security agencies.

    Frequently Asked Questions

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    Why do I need to go through a new security clearance?The National Probity Assessment results, for the purposes of holding acurrent New South Wales licence, are only valid for a period of five years.Federal law enforcement and security agencies require lodgment of a newNational Probity Assessment request in order to provide current informationto support the issuance of licenses under the Regulation.

    What is Australia Post Bank@Post?Bank@Post is available at Australia Post outlets displaying the

    Bank@Post logo. You can locate your nearest Australia Post Bank@Postoutlet at http://apps.nowwhere.com.au/austpost/PostOfficeLocator/

    Do I have to provide all the same information again?

    In most cases not all information that was required for your first applicationwill need to be provided again. The covering letter included in this packageexplains in detail the information that will not need to be provided a secondtime.

    Please call the WorkCover Assistance Service on 13 10 50 if you have anyfurther questions.

    BEUL Letter Template

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    BEULLetter Template

    Current BEUL& UHL

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    Current BEUL & UHL

    combined

    front

    Current BEUL& UHL

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    Current BEUL & UHL

    combined

    back

    Proposed Artwork Front UHL

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    1. Change of artwork title from Explosives Licence to Unsupervised Handling Licence

    2. JPEG image of licence holder to be placed where the WorkCover NSW symbol waspreviously

    3. WorkCover NSW symbol relocated to the top left hand corner of the card

    4. Description changed from Unsupervised Handling Licence to Security cleared to handleexplosives and SSDS under a valid licence

    5. Description field moved to the right to align with the licence and card number fields

    Proposed Artwork Front UHL

    Explosives Update

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    Explosives

    Update

    If no changes required

    Proposed Artwork Back UHL

    signature strip

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    USEFUL CONTACTS

    13 10 504321 5499

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    Hunter Valley Explosives Ute Incident 2003

    Graham Cowan

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    Wrap up

    Updated information following an incident

    Covered some topical issues Encouraged questions and answers Encouraging later follow through Any last minute questions?

    [email protected]

    No accidents to anyone ever Orica