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Showing: 1 to 10 of 12700 matches for "underground rates"  Page   1   2   3   4   5   6   7   8   9  next TITLE Randolph Preparation Plant: Maximum Production With Minimum Maintenance  SUMMARY ... Because of the changing production ratesin both the underground and surface mines as ... by means of rail haulage at both unittrainrates and plant process rates . ... AUTHOR Brennan, Lawrence M. PUBLISHED 1976 TITLE Numerical Simulation Of Bulkheads To Reduce Uncontrolled Discharge From An Underground Copper Mine  SUMMARY ... bulkhead locations, compartmental water-level e'levations and simulated flow rates required for containment. are barriers used commonly in underground mines to ... AUTHOR Lewis, R. L. PUBLISHED 1997 TITLE Methane Drainage Study Using an Underground Pipeline, Marianna Mine 58  SUMMARY ... Location of underground pipeline and vertical borehole ••••• Steel pipeline and ... Hole 3 gas flow rates during drilling ... AUTHOR Prosser, L. J., Jr. PUBLISHED 1981 TITLE The Advantages Of High Production Level In Underground Mining  SUMMARY ... thetical deposits we shall invest money in the haulage level, underground raps , crushing ... a lifetime of 15-20 years for the mines with higher production rates. ... AUTHOR Nilsson, Dan S. PUBLISHED 1980 TITLE A study of radon regulation and pathology as it relates to underground hardrock mining  SUMMARY ... However, as early as the 1400’s underground uranium miners in Germany ... indicating the importance of radon daughters, and explaining the observed cancer rates. ... AUTHOR Loring, D. M. PUBLISHED 2009 TITLE Effect of Load Rate on Wood Crib Behavior  SUMMARY ... underground closure rates. This paper presents the results of these tests and suggests future load-rate studies to be conducted ... AUTHOR Barczak, Thomas M. PUBLISHED 1988 TITLE A Statistical Overview of Retreat Mining of Coal Pillars in the United States  SUMMARY ... MlNE TYPE Figure 4. RooDrib accident rates at US underground coal mines in 1993, by mine type. Page 4. 16th CONFERENCE ON GROUND CONTROL IN MINING - 2500 ... AUTHOR Mark, Christopher PUBLISHED 1997 TITLE Chemical Oxygen In Underground Life Support  SUMMARY ... primarily because the candles must be sized for the maximum work load expected and thus is wasteful of oxygen at lower work rates. ... Underground Survival Unit ... AUTHOR Mausteller, J. W. PUBLISHED 1971 TITLE Application And Advantages Of Side Dump Principle In Underground Development And Production Loading  SUMMARY ... as a part of the finished shaft and its equipment for haulage of underground lime- stone ... Sustained loading rates of 180 tons per hour ...P.,.'I , effected. ... AUTHOR Hendrickson, Donald E. PUBLISHED 1966 TITLE Ground Control Worker Safety During Extended Cut Mining  SUMMARY ... Page 3. 16th CONFERENCE ON GROUND CONTROL IN MINING Table 1. Accident incidence rates based on underground employee hours worked, 1989-1991, 1993, and 1995 ... AUTHOR Grau, Roy H. PUBLISHED 1997 Showing: 1 to 10 of 12700 matches for "underground rates"  Page   1   2   3   4   5   6   7   8   9  next Search Again