Underground Mining of Coal Deposits

1. Distribution of coal seams by bow and thickness
2. Preparation and extraction rooming
3. Preparation and extraction method pillar, hallway, butock, room-pillar
4. Preparing for longwall mining in flat storage
5. Preparing for mining in steep inclined and storage
6. Parameters affecting the length of the longwall
7. Methods disconnection of coal in mining
8. Transportation of coal in longwall
9. Reinforcement of longwall
10. Way of establishing voids
11. Mining methods sloping and steep seams
12. Principles stamping, preparation and extraction of coal seams at risk by mining vibrations, torrential coal and gas, water inrushes