Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
IC 7888 Mining Methods And Costs At The Anaconda Company Berkeley Pit, Butte, Mont. ? Summary And Introduction
By John R. McWilliams
This report is one of a series published by the Bureau of Mines describing methods and practices at various mines throughout the United States. A previous program, conducted from 1928 to 1939, was wel
Jan 1, 1959
-
High Stress Mining Under Shallow Overburden In Underground U. S. Stone Mines
By Thomas P. Mucho, Dennis R. Dolinar, Anthony T. Iannacchione
The Chestnut Ridge Anticline is a prominent structure in southwestern Pennsylvania, USA. This structure has brought two economically valuable limestone formations to the surface, where they are easil
-
RI 4932 Nonmetallic Deposits Accessible To the Alaska Railroad as Possible Sources of Raw Materials for the Construction Industry
By F. A. Rutledge, J. J. Mulligan, W. H. Kems, R. L. Thome
"As a part of the United States Department of the Interior program for the development and use of Alaska raw materials, the Bureau of Mines is conducting an investigation of deposits f nonmetallic min
Mar 1, 1953
-
Concrete Stoppings In Coal Mines For Resisting Explosions: Detailed Tests Of Typical Stoppings And Strength Of Coal As A Buttress ? Foreword
By George S. Rice
[This paper gives the details of tests to determine the design of stoppings capable of withstanding a pressure, applied to either side, of 50 pounds per square inch,6 as required by section 104 (a) of
Jan 1, 1931
-
IC 8197 Methods And Costs Of Exploration And Pilot Plant Testing Of Ilmenite-Bearing Sands, Lakehurst Mine, The Glidden Co., Ocean County, N. J.
By Richard Quirk
This report describes methods and techniques employed by The Glidden Co. of Cleveland, Ohio, in explorating an ilmenite-bearing sand deposit in Ocean County, New Jersey, during 1960 to determine ore r
Jan 1, 1963
-
RI 3031 Acrolein as a Warning Agent for Detecting Leakage of Methyl Chloride from a Multifle Refrigeration System
By H. H. Schrenk, W. P. Yant, F. A. Patty
"INTRODUCTION In accordance with the outline of investigation described in a previous report 5 of the Bureau of Mines dealing with the use of acrolein for detecting leakage of methyl chloride from uni
Sep 1, 1930
-
OFR-88-82 Survey Of Safety Procedures For Guarding Blast Affected Areas
By Jerry Bennett
This report describes the results of a survey of current blast area guarding procedures at surface and underground metal/nonmetal mines. It features five case histories (two surface and three undergro
Jan 1, 1981
-
RI 9458 - Behavior of Simulated Longwall Gob Material (33936e16-8cd5-484a-990f-c74e5f8fcfa1)
By Deno M. Pappas
This report presents results of a U.S. Bureau of Mines study of longwall gob material. The objective of this work was to determine material stiffness properties of the gob for use in numerical models
Jan 1, 2010
-
A Correlation Between Seismic Tomography, Seismic Events And Support Pressure
By S. Peterson, E. C. Westman, P. L. Swanson
Coal bumps are brittle, violent failures associated with high stresses and competent host strata. To study bump mechanisms, conditions in the vicinity of a deep longwall mining face in bump-prone stra
-
RI 8462 Recovery of Rutile From a Porphyry Copper Tailings Sample
By T. O. Llewellyn
The Bureau of Mines conducted batch-?scale tests on a sample of parphyry copper mill tailings as part of a study to determine the feasibility of rutile recovery from this source. The tailings that wer
Jan 1, 1980
-
OFR-104(4)-80 Selective Placement Of Coal Strip Mine Overburden In Montana - IV. Hydrogeologic Studies
By D. J. Dollhopf
This research was part of an effort to investigate means of reestablishing non¬polluted hydrological systems in areas where surface mining directly impacts shallow ground-water resources. Chemically
Jan 1, 1979
-
The Unpredictable Life Cycle of a Coal Pillar
By Stephen C. Tadolini, Peter (Yunqing) Zhang
A unique circumstance created by monitoring a pre-driven longwall recovery room permitted measuring the stresses of a coal pillar throughout its entire life cycle in less than a week. A fender pillar
-
An Inexpensive Dual-Chamber Particle Monitor: Laboratory Characterization
By Susanne Hering, Brent Kirby, Charles D. Litton, Tracy Allen, Kirk R. Smith, Rufus Edwards
In developing countries, high levels of particle pollution from the use of coal and biomass fuels for household cooking and heating are a major cause of ill health and premature mortality. The cost an
-
Numerical Modeling Procedures For Practical Coal Mine Design (237d1a0f-d46f-4124-9918-9eab02bc2008)
By R. K. Zipf
A method is presented for creating realistic numerical models for practical coal mine ground control. The method includes procedures to collect the necessary mechanical input parameters from a geolog
-
IC 8077 Injury Experience In Quarrying, 1958 ? Introduction And Summary
By John C. Machisak
DATA ON INJURY experience at quarries and related plants of the United States are presented in this publication under the following general sections: A) General injury experience: Tables 1-4: Cont
Jan 1, 1962
-
IC 8886 Mine Illumination - Proceedings: Second International Mine Lighting Conference Of The International Commission On Illumination (CIE)
The U.S. Bureau of Mines, Department of Labor, and United States National Committee of the CIE hosted the TC4.10 Mine Lighting Committee Meeting and Second International CIE Mine Lighting conference a
Jan 1, 1982
-
OFR-164-82 Engineering Evaluation Of Radon Daughter Removal Techniques
By Donald B. Lindsay
This report presents the findings of an investigation into the characteristics of a number of techniques for cleaning ambient air with special emphasis on their applicability to the removal of the sho
Jan 1, 1978
-
Ergonomic Interventions At Vulcan Materials Company
By J. Torma-Krajewski, C. Hipes
Although many mining companies apply ergonomic principles, it is usually done either informally and/or reactively. An example of an informal approach is replacing worn equipment (such as seats) with m
-
OFR-2-72 Program Of Acoustic Research For Underground Coal Mining Operations
By Damon C. Gray
This report contains a recommended program of acoustic research to be conducted by the U. S. Bureau of Mines. The program is directed toward the abatement and control of machinery noise in underground
Jan 1, 1971
-
IC 8178 Three Waterflooding Projects And A Pressure-Maintenance Project In Butler And Cowley Counties, Kans., 1963 (f4081a6d-791d-4fea-b102-8295adb5b381)
By Kenneth H. Johnston
This report describes in detail three waterflooding projects and a pressure-maintenance project in Butler and Cowley Counties, Kans., that will be visited on the 1963 annual spring tour of the Kansas-
Jan 1, 1963