Opencast Mining: Mine Planning, Opening of coal seams and
preparation for excavation; box cut, types; selection of site; formation of
production benches; ripping; types of rippers; concept of rippability and cycle
of operation; drilling; blast hole drills; performance parameters; requirement
of number of drills; blasting; blast design; factors influencing blast design;
deep hold blasting; calculation of charge per hole; ground vibration; secondary
blasting and problems of blasting; side casting; environment friendly
non-blasting techniques such as Surface Miners and their safety aspects.
Discontinuous / cyclic methods of excavation and transport:
shovel dumper operation; applicability of electric shovel and hydraulic
excavators; cycle time and productivity calculation; estimation of equipment fleet;
dragline operation; side casting; side cast diagram; calculation of reach;
cycle time; productivity calculation; bucket capacity requirement; scrappers;
types; methods of work; push pull operation etc.,
Bucket Wheel Excavator - operational methods (lateral block,
half block and full block, etc.,) productivity calculation; Surface Miner -
operational methods(wide/full base methods, wide/full bench, block mining, stepped
cut, empty travel back, turn back and continuous mining methods); conveyors;
shiftable and high angle conveyors; mode of operation etc;, OITDS (operator
independent truck dispatch system); in-pit crushing and strip-mining; opencast
mining over developed coal seams; high-wall mining; safety aspects Construction
of Haul roads and ramps: width, super elevation / camber, central bund, side
bund, slope, base, sub-base,surface, Surface friction, materials required,
drainage, curve, visibility, machines to be used, maintenance, monitoring, Haul
road crossings, T-junction, tri-junction, four-way crossings, parameters,
Parking of HEMM, parking of dump trucks, GO-line design,
Shelter construction, view point construction.Watering of mine roads for dust
suppression, methods to be used, hazards due to overwatering, type of water
spraying, spot or strip watering.
Extraction of Methane: Surface to Inseam Methane Drainage,
Coal Bed Methane, Abandoned Mine
Methane and Gas content of Coal; Resource and Reserve
estimation; Methods of drilling and precautions required while exploration and
extraction of methane; Gas production rate, project life and economy; Methods
of Collection and conveying/transportation of methane; Installation of
extraction wells; Hazards involved.