BENCH & ROAD STANDARS IN OPENCAST MINES.pptx

BENCH & ROAD STANDARS IN OPENCAST MINES.pptx

• 1.
  K. Krishnudu, FCC(R),Manager, Mines Group Vocational Training Centre, Hosapete. Email: [email protected]
• 2.
  DESIGN PARAMETERS OFOPENCAST MINE BENCHES
• 3.
  OPEN CAST MINEWORKING
• 4.
  DRILLING FOR BLASTING
• 5.
  BLSTING IN OPENCASTMINE
• 6.
  BENCH WIDTH BENCH HEIGHT BENCHESIN OPENCAST MINE
• 7.
  60° BENCH FACE SLOPEIS MAINTAINED AT 60° FROM HORIZONTAL BENCH SLOPE BENCH FACE SLOPE
• 8.
  TRUCK WIDTH 4 METERS TRUCKWIDTH 4 METERS HALF TRUCK WIDTH 2 METERS CLEARANCE FOR TRUCKS ON TWO WAY
• 9.
  HAUL ROAD WIDTHAS PER DGMS STANDARDS SAFETY BUND Haul Road Width = 3 Times the Width of Biggest Vehicle
• 10.
  MINE HAUL ROADAND ACCESS ROAD TO PIT/MINE
• 11.
  SAFETY BUND HAUL ROADGRADIENT ROAD GRADIENT 1 IN 16 FOR MOVEMENT OF HAUL TRUCKS
• 12.
  SHORT RAMPS 1IN 10 FOR MOVEMENT OF HEAVY MACHINERY FROM BENCH TO BENCH SHORT RAMPS BENCH TO BENCH
• 13.
  ROAD GRADIENT 1IN 16 FOR MOVEMENT OF HAUL TRUCKS HAUL ROAD GRADIENT
• 14.
  MATCHING ROADS WITH1 IN 16 GRADIENT FROM ONE BENCH TO ANOTHER BENCH FOR TRAVELLING OF DUMPERS HAUL ROAD GRADIENT
• 15.
  SAFETY BUND
• 16.
  VISIBILITY AT ROADCURVE ATLEAST 30 METERS AHEAD
• 17.
  ESCAPE LINE INHAUL ROAD
• 18.
  MATERIAL HAULING ROADIN MINE BENCH WORKING