ECONOMICS OF OVERBURDEN REMOVAL AND STOCKPILING IN LIMESTONE PRODUCTION

BESIDES THE QUALITY REQUIREMENTS APPLICABLE TO PRESENT-DAY LIME WORKS IT IS ALSO NECESSARY TO MAKE FURTHER PROGRESS IN RATIONALIZATION, AND IN THIS CONNECTION THE REMOVAL OF OVERBURDEN AND UNSERVICEABLE MATERIAL BY COST-SAVING METHODS PLAYS AN IMPORTANT PART. ACCURATE KNOWLEDGE CONCERNING THE LIMESTONE DEPOSIT IS THE PREREQUISITE FOR THE PRODUCTION OF UNIFORM QUALITY AT MINIMUM COST. GEO-ELECTRIC MEASUREMENTS PROVIDE A VERY USEFUL MEANS OF EXPLORATION OF THE DEPOSIT, BUT THEY DO NOT MAKE CLOSELY SPACED EXPLORATORY BORINGS PERFORMED WITH EARTH DRILLING AND PROSPECT DRILLING EQUIPMENT AT ALL SUPERFLUOUS. IF THE DEFORMATION ZONES WITH OVERBURDEN COVER ARE KNOWN AND IF IT IS ALSO KNOWN WHAT TYPES OF SOIL CAN BE EXPECTED, THE ARRANGEMENTS FOR REMOVAL CAN BE PLANNED ACCORDINGLY. THE RIGHT MACHINE FOR THE PARTICULAR PURPOSE MUST BE SELECTED FROM THE WIDE RANGE OF COMMERCIALLY AVAILABLE FACE SHOVELS, BACK-ACTERS AND DRAGLINES, GRABS OF VARIOUS TYPES, LOADING SHOVELS, CRAWLER- MOUNTED OR PNEUMATIC-TYRED LOADERS, BULLDOZERS AND SCRAPER- DOZERS, SCRAPERS, DRAG SCRAPERS, ETC. RAIL-MOUNTED EQUIPMENT IS NOW OBSOLETE. WITH RAILLESS HAULAGE IN OVERBURDEN STRIPPING, TOO, THE MOST FAVOURABLE OPERATING COSTS ARE ACHIEVED BY CORRECT INTERADJUSTMENT OF ALL THE OPERATIONS. THUS, TRANSPORT BY BELT CONVEYOR MAY GIVE SUCCESSFUL RESULTS, DESPITE HIGH INITIAL COSTS, AND UNDER CERTAIN CONDITIONS THE SAME IS TRUE OF HYDRODYNAMIC OVERBURDEN REMOVAL. TIPPING THE MATERIAL MUST BE CARRIED OUT PROPERLY AND EXPERTLY. THIS IS ABSOLUTELY ESSENTIAL, THE MORE SO AS INNUMERABLE SLIPS HAVE OCCURRED ON TIPS, SO THAT THERE HAS BEEN AMPLE OCCASION TO LEARN BY BITTER EXPERIENCE. WITH REGARD TO THE ADVERSE EFFECTS ON THE LANDSCAPE, THE PRINCIPLE OF SITE RESTORATION SHOULD GAIN WIDE ACCEPTANCE. BESIDES THE REMOVAL OF OVERBURDEN AND RUBBLE FROM THE QUARRY, THE WASTE MATERIALS FROM THE PREPARATION PROCESSES MAY SOMETIMES PRESENT A MAJOR PROBLEM. THIS APPLIES BOTH TO THE DISPOSAL OF FINE-GRAINED MATERIALS FROM WET PROCESSING AND TO THE WASTE FROM THE FINE STONE DRYING TREATMENT. /AUTHOR/

• Supplemental Notes:
  • Vol 57, No 1, PP 23-31
• Authors:
  • Stumpf, K
• Publication Date: 1968-1

Media Info

• Serial:
  • Zement-Kalk-Gips

Subject/Index Terms

• TRT Terms: Belt conveyors; Boring; Bulldozers; Draglines; Economics; Excavating equipment; Hydrodynamics; Limestone; Loaders; Overburdens; Production; Quarries; Stockpiling; Stripping (Pavements)
• Uncontrolled Terms: Removal; Scrapers (Construction equipment)
• Subject Areas: Economics; Geotechnology; Highways; Hydraulics and Hydrology; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 00219295
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 1 1994 12:00AM