FMC Unrestricted-Metal syllabus Winning and Working

Winning and Working:

Geology: Characteristics and classification of mineral deposits; application of Geology to mining; geological structures; folds, faults, fractures, fissures etc. methods of exploration and delineation of the ore bodies; boring through disturbed st rata; bore hole survey; sampling; estimation of cut-off grade and ore reserve; losses of mineral in mining; net smelter return (NSR) to mill and mine; mine valuation; quality control, interpretation of geological maps.

Opening of mineral deposits: Legal requirement about outlets; siting; vertical and inclined shaft; adits, declines; shaft sinking and deepening; methods of sinking: mechanised sinking; in ordinary and water logged grounds, in running sand etc.; freezing, cementation and other special methods; shaft supports, temporary and permanent, tubings etc, recent developments.Development and layout of mines including surface and underground arrangements; layout and development of shaft -top and pit-bottom and haulage arrangements.

Underground Mining Methods: Choice of methods of development and stoping and factors affecting the same; statutory provisions.

Primary and secondary Development: Choice of level interval and back/block length; main haulage drifts and tunnels; high speed drifting; excavation and equipping of grizzly (conventional and mechanised), ore/waste bin, main ore-pass system, underground crushing, loading and hoisting stations, underground service chambers, sump and other subsidiary excavations.Cross-cuts and drifts;  raises and winzes; ground breaking; mucking; ventilation and support; extension of track and other services; modern drilling and loading equipment; Alimak and Jora-lift raising, long-hole and vertical crater retreat (VCR) raising; Raise boring systems; mechanised winzing.

Stoping: Classification, selection of stoping methods and applicability; stope layouts, stope preparation and production operation; ground breaking, mucking, ventilation, supports, haulage and dumping; stoping of narrow and wide ore bodies; mining of parallel veins; open, supported, filled and caving methods; combined systems and special metho ds; underhand, overhand, breast, long-hole and raise, resuing, room & pillar, sublevel, large diameter blast hole (DTH), cascade, shrinkage, vertical crater retreat, horizontal cut-and-fill, square set, top slicing, sub-level caving, block caving methods; combined open- room, shrinkage and cut-fill and subsequent filling systems; hydraulic, thermal, hydrochemical, biochemical and nuclear- device mining systems; design and construction of draw points; mechanics of draw and draw control procedure; recovery and dilution; problems of deep mining and the remedial measures; design and layout of stopes in rockburst prone mines, mining sequence and rationale.

Opencast Mining: Opening of deposits 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 hole blasting; calculation of charge per hole; ground vibrations; secondary blasting and  problems of blasting side casting; environment friendly non-blasting techniques; 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 castin g; side cast diagram; calculation of reach; cycle time; productivity calculation; bucket capacity requirement; scrapers; types; method 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 method, 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 despatch system); in-pit crushing and strip-mining; safety aspect.

Application of concepts of Rock Mechanics for designing the methods of mining and strata control: Theories of ground movement and strata control; stress, strain – compressive and tensile, shear strain, uniaxial and tri-axial strength, Poisson’s Ratio, Young’s Modulus, convergence, elasticity, lithostatic and hydrostatic pressure; rock mass classifications, strength of pillars (crown /rib/sill/post) and shaft pillar; protection of surface structures; design and stability of structures in rock; designof support and reinforcement for underground excavations; support resistance, yielding and non yielding supports, dynamic and static loading, measuring instruments, consolidated and unconsolidated fills, rock bolts, cable bolts; latest developments in mine supports, economics of support design, cost benefit anlalysis subsidence; caving of rock mass; problems of deep mining; rock burst; monitoring of rock mass performance; mechanics of rock fragmentation; slope stability and  dump stability; dump management; roof management.

Use and safe handling of explosives; blasting techniques and their relative efficiency, total cost concept. Application of numerical modelling in mine design; .application of computers in mine design and operational controls.

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