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EYNEZ EAST UG COAL MINE Risk Management Program EYNEZ EAST UG COAL MINE Risk Management Program Hacı KARAKUŞ HSEC Manager – Demir Export A.Ş. December.

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Presentation on theme: "EYNEZ EAST UG COAL MINE Risk Management Program EYNEZ EAST UG COAL MINE Risk Management Program Hacı KARAKUŞ HSEC Manager – Demir Export A.Ş. December."— Presentation transcript:

1 EYNEZ EAST UG COAL MINE Risk Management Program EYNEZ EAST UG COAL MINE Risk Management Program Hacı KARAKUŞ HSEC Manager – Demir Export A.Ş. December 2014 DEMİR EXPORT – FERNAS JV

2 Eynez East Coal Mine Introduction Risk Assesment Methodology Major Hazards High Risk Areas Risk Treatment Plan Conclusion Contents

3 3  Eynez East UG Coal Mine is located in the vicinity of Eynez village, 35 km South of Soma; 106 km North of Manisa City.  Eynez East is on the TKI concession of Soma Basin.  Demir Export – Fernas JV (DEF) to all required surface and underground facilities to produce 2.5 million tonnes per year over 16 years of mine life.  Coal seam is thick, brown coal (lignite) East Eynez Coal Mine Introduction

4 4 East Eynez Coal Project was tendered out by Turkish Coal Enterprises (TKI) in DEF started field work in May Project Schedule: : Mine Development Period : Start-up and ramp up period (1.5 Mtpa) : Full production (2.5 Mtpa) Selected Mining Method: Longwall Top Coal Caving for safety and production capacity Introduction

5 5 45 exploration drillholes were done by MTA for TKI. In addition DEF have done 8 more drillholes to develop 3D resource model for mine design and planning purposes. Eynez Village Pillar (to protect Village) Open Pit Mine (TKI) Drillholes Locations New drillholes were drilled; To improve coal reserve To validate the formations Collect geotechnical data Collect data for gas content Detailed mine plan Introduction

6 6 Main Gallery Ventilation Gallery Production Panels Coal Blocks Infrastructure

7 7 Fully mechanized longwall top coal caving mining method (LTCC) Infrastructure

8 8 Coal and Personnel Transportation Coal will be transported to surface through belt conveyors. All belt conveyors convey to international coal mining standards,1200 mm wide and flame proof. Main haulage belt is steeel supported while others are solid woven belts. People who work in the mine and equipments mainly transported to work areas through mono rail system. Infrastructure

9 9 Linear Development 13 production panels will be mined out over life of mine, for all panels total maingate and tailgate roadways will reach meters through LoM. Advance of the ventilation drift is 1716 m, by mid of Nov Advance of the main haulage drift is 1580 m, by mid of Nov Infrastructure

10 10 Longwall Top Coal Caving Method: Each coal level is divided into two sections (upper and lower excavation section) The lower section is 3,5 m high and secured by the hydraulic support system, coal is produced by shearer. The upper section 5 to 10 m in height, is exposed to dynamic stress conditions due to crumbling of the coal layer. To sum up, 70% of Coal production will be provided by free-falling and 30% by shearing. Mining Method

11 11 WHY LTCC? Mine Safety Lower face heights result in improved face control, smaller and less expensive equipment and improved spontaneous combustion control in thick seams, through removal of the majority of top coal from the goaf. Resource Recovery and Mine Financial performance The LTCC method enables extracting up to 90% of seams in the thick coal seams. Operating Cost Since only 30% of coal is cut and the rest is free caving coal, operating cost for LTCC is typically lower than classical longwall operation. Mining Method

12 12 Production equipment Shearer Hydraulic Shield Support Front AFC (armoured face conveyor) Rear AFC Hydraulic Shield Support Longwall Equipment

13 13 Haulage and Transport Equipment Conveyors Armored Chain Conveyor Belt Conveyor Monorail Diesel Monorail Shunting Trolley Belt Conveyor Chain Conveyor Monorail Equipment

14 14 Face/drift Development Equipment Roadheader Tunnel heading and loading machine RoadheaderTunnel Heading and Loading Machine Equipment

15 The site team have carried out a Broad Brush Risk Review (BBRR) for Eynez East Underground Coal Mine. The key objectives of the BBRR are to : 1.Identify the groups of major hazards those require detailed risk assesment by using bow tie analysis method. 2.Confirm the qualitative risk priority and 3.Provide a list of hazards that engineering and safety personel can review to ensure there are currently policies, procedures and strategies in place to control these hazards. 15 Risk Assessment

16 16  The Bow Tie method is used extensively in hazardous industries  Forms the basis of the risk assessment  Focus is on:  What can go wrong and why? Causes/Threats/Hazards  How do we prevent it? Preventative Controls  If we do lose control, how do we limit the effects Reactive Controls  A Bow Tie model is developed for all the identified “major hazards” which includes specific hazards for the Eynez East Underground mine under Enyez Village Risk Assessment

17 17 Loss of Control Preventative Controls Reactive Controls Outcomes Near Miss Minor Loss Major Loss Catastrophic Causes/ Threats Hazard 1 Hazard 2 Hazard 3 Hazard 4 Hazard 5 The focus is on the hazards and controls Risk Assessment

18 18 Gas About to Ignite Preventative Controls Reactive Controls Outcomes Near Miss Minor Loss Major Loss Catastrophic Causes/ Threats Gas Electrical Equipment Failure Gas Drainage Auto shut down of equipment Withdraw personnel Gas monitors Ex Rated Equipment Equipment maintenance Everyone has responsibilities for the controls not just Safety people Emergency Response Risk Assessment

19 By its definition, major hazards have the potential, if not controlled effectively, to result in catastrophic outcomes therefore all are considered high risk (high consequence even if the likelihood is very low) and therefore all require detailed analysis to develop risk treatment plans to reduce the risk to ALARP (As Low As Reasonably Practicably). Team workshops were then conducted on the high risk areas, Major Hazard = those hazards which have very high consequence (eg) multiple fatalities or significant loss (immediate or over time) 22 major hazard groups were identified. 19 Risk Assessment

20 The top 10 Major Hazard groups were identified for review process are: 1.Spontaneous Combustion 2.Strata Instability 3.Gas Explosion 4.Entanglement, Conveyors, Caught in and Struck By Equipment 5.Inrush / Inundation 6.Emergency Response 7.Electricity 8.Carbon Monoxide (CO) / Gas Asphyxiation / Atmospheric Contaminants 9.Underground fire 10.Airblast 20 Introduction

21 The residual risk of spon com, gas explosion, and strata failure are still high because the level of consequence is still extreme should an unwanted event occur. Risk level can be reduced through the effective implementation, monitoring and review of the risk treatment plan. Managing the controls at all times is critical during operation. The Risk Treatment Plan (RTP) for spon com, strata and gas explosion was the starting point only and it is reviewed and updated by technical specialists with more information obtained and analyzed. The plan is based on the input from the team members with the information and understanding of the risks at the time. This may require review and change in the future if required. 21 Risk Assessment

22 Strata instability / failure : The team identified and defined 15 hazards that need careful consideration by technical personnel and specific controls. Additional recommendations were made to improve the adequacy of the current and planned controls. Critical controls included development of ; Strata Control Management Plan, Cave Management Plan, Subsidence Management Plan, and An effective mine design, 22 Risk Assessment

23 23 Eynez Village Pillar (to protect Village)  Mining affects on Eynez Village  Subsidence and strata affects  Vibration  Water loss or impact on water quality Risk Assessment

24 24 Open Pit Mine (TKI)  Mining near to or underneath an operational open cut mine  Water inrush if flooded  Blasting  Pillar and strata issues Risk Assessment

25 25  Mining next to old underground workings  Water inrush if flooded  Pillar and strata issues Risk Assessment

26 26  Mining through faults  Pathways for water and gas  Pillar and strata issues  Longwall operations difficult (eg) slow advance which leads to deteriorating strata conditions in gate/tail roads Risk Assessment

27 27  Mining in thick seam and use of LTCC  Caving issues (eg) mudrush (fines and water in goaf / cave zone)  Pillar and strata issues  Longwall operations difficult  Spon com Risk Assessment

28 28  Gas – high gas concentrations  Gas explosion  Effects on strata instability (eg) coal outbursts  Asphyxiation  Lower coal seam interconnectivity and through faults  Fire  Carbon Monoxide  Effects on ventilation flows  Spontaneous Combustion  The coal has a high propensity for spon com  Goafs  CO inflows to other areas Risk Assessment

29 29 Additional controls were developed throughout the hazard identification section of the risk assessment with a focus on the hierarchy of controls as depicted in the figure below. Hierarchy of Controls 1. Eliminate the Hazard 2. Substitute / Minimise 3. Engineering Control  Redesign  Enclose  Isolate 4. System Controls  Safe Work Procedures  Training  Warning Devices 5. PPE (last line of defence) Risk Assessment

30 30  At Eynez East Coal Mine three major hazard groups were identified.  DEF internal control procedures and applications are developed.  DEF Team suitably being trained.  DEF Management Commitment, DE vision covers these major risks  DE Safety Management Plan and applications covers the risks.  Outside Services and Studies for Spon Com, Strata and Gas explosion  Purchasing fit for purpose systems to reduce the impact of risks.  Continuous training, monitoring and auditing.  Reporting all incidents and accidents.  Proactive HS applications. Conclusions

31 31 THANK YOU


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