chapter Fire extinguishing mechanism and application research of nitrogen injection displacement -- chapter Study on characteristics and control technology of mining induced stress shell in thick coal seam -- chapter Thermal hazard in Chinese coal mines and measures of its control -- chapter Research on surrounding rock control techniques of the second gob-side entry retaining for Y-type ventilation -- chapter Numerical modeling of outbursts of coal and gas with a coupled simulator -- chapter The influence of sealing abandoned areas on climatic conditions in the room and pillar extraction method in copper mining -- chapter Proecological technology utilization of methane from mines -- chapter Numerical simulation of airflow in blind headings ventilated with freestanding fans -- chapter Mining in Poland - history and future -- chapter The influence of natural hazards on occupational safety in Polish collieries -- chapter 3 dimentional numerical simulation of spontaneous combustion in goaf of fully mechanized top-coal caving longwall.