SCR-WINNING & WORKING DGMS EXAM SYLLABUS

SYLLABUS FOR THE EXAMINATION FOR SECOND CLASS MANAGER’S CERTIFICATE OF COMPETENCY RESTRICTED TO COAL MINES HAVING
OPENCAST WORKING ONLY (UNDER COAL MINES REGULATIONS, 2017)
WINNING AND WORKING


Geology: Nature and occurrence of coal seams; description of Indian coalfields; geological features of coalfields; methods of boring, boring through disturbed strata; bore hole survey; interpretation of geological maps.

Opencast Mining: Opening of coal seams and preparation for excavation; box cut, types; selection of site; Layout of Opencast mine, parameters, formation of production benches; ripping; types of rippers; cycle of operation; 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.

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; environment friendly non-blasting techniques; safety aspects.

Discontinuous / cyclicmethods 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; Dragline balancing diagram; side casting; 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; continuous 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, Coal Handling Plants, strip-mining; opencast mining over developed coal seams; high-wall mining; safety aspects.

Application of concepts of Rock Mechanics for designing the methods of mining and strata control: Design and stability of structures in rock; design of support and reinforcement for open pits; Types of bench and dump slope failures, Theories of ground movement and strata control; rock bolts, cable bolts; wire mesh; monitoring of rock mass performance, mechanics of rock fragmentation; Dump types, internal and out of pit dumps, Dump construction, size, shape, Site selection and preparation for dumping, Methods of dumping, machines required for dump construction, consolidated and unconsolidated dumps, slope stability; slope angle, benches, berms, factors affecting slope stability, design criteria and monitoring systems; dump stability; dump management.

Use and safe handling of explosives: blasting techniques and their relative efficiency, total cost concept and safety precautions.

Danger from different sources of water; precautions to prevent inundation, siltation, bench and dump failures; designing drainage system, calculation of catchment area, sump and pump capacity,   water dams, retaining walls, siltation ponds, gabion walls, water danger plans.


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27-04-2021    0