Materiały konferencyjne SEP 2020

ZAGROŻENIA W PODZIEMNYCH LABORATORIACH 10 Geologicdiscontinuities occurrence Spalling of sidewalls Unsupported roof Roof Failures MIne collapse Lack of monitoring devices Rockburst Squeezing of pillars PROBABILITY IMPACT EXTREMELY SMALL LOW MODERATE HIGH VERY HIGH UNNOTICEABLE SMALL MODERATE SEVERE CATASTROPHIC ACCEPTABLE LOW MEDIUM SERIOUS UNACCEPTABLE No. Ground Control Probability Impact Risk 1. GEOLOGIC DISCONTINUITIES OCCURRENCE MODERATE SEVERE MEDIUM 2. UNSUPPORTED ROOF LOW CATASTROPHIC SERIOUS / HIGH 3. SPALLINGOF WALL MODERATE MODERATE MEDIUM 4. ROOF FAILURES LOW CATASTROPHIC SERIOUS / HIGH 5. WORKINGS INSTABILITY LOW CATASTROPHIC SERIOUS / HIGH 6. OVERBURDEN CAVING EXTREMELYSMALL CATASTROPHIC MEDIUM 7. LONGTERM CREEP EFFECT MODERATE MODERATE MEDIUM 8. TOO HIGH IN-SITU STRESS LOW SEVERE MEDIUM 9. GROUNDMOVEMENT LOW CATASTROPHIC SERIOUS / HIGH 10. COLLAPSEOF SURFACE EXTREMELYSMALL CATASTROPHIC MEDIUM 11. MINECOLLAPSE EXTREMELYSMALL CATASTROPHIC MEDIUM 12. LACK OF MONITORINGDEVICES OF WORKINGS STABILITY LOW SMALL LOW 13. CAVE-IN EXTREMELYSMALL SEVERE LOW 14. SWELLING MODERATE SMALL LOW 15. SQUEEZING MODERATE SMALL LOW 16. …. ENVIRONMENTAL RISK