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IC 6257 The Work Of The United States Bureau Of Mines
The United States Bureau of Mines frequently receives requests for information regarding the details of its organization and the nature of its activities. In response to such an inquiry a series of ar
Jan 1, 1930
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OFR-3(2)-80 The Development of A Cross-Pit Overburden Handling System - Volume II - Appendix
By J. Ritchey
This report describes the engineering feasibility and economic advantages of using a mobile bridge-type cross-pit belt conveyor system in conjunction with a large dragline to excavate and transport sp
Jan 1, 1976
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OFR-92-79 Development Of Training And Data For Specifying And Maintaining Mine Illumination Systems
By Felix du Breuil
Contract H0177044 included three objectives; (1) consolidate, maintain, and distribute information on STE approved lighting systems; (2) develop and present one-day seminars on underground mine lighti
Jan 1, 1979
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Developing Toolbox Training Materials For Mining - What Is Toolbox Training And Why Use It?
By Floyd D. Varley, C. M. K. Boldt
Toolbox training is often described as short, informal training conducted at a worksite by technically competent persons for the benefit of a work team. The key feature of toolbox training is the focu
Jan 1, 2002
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New Developments With The Coal Mine Roof Rating
By Christopher Mark, Gregory M. Molinda, Timothy M. Barton
The Coal Mine Roof Rating (CMRR) was first presented at this Conference nine years ago. Since its introduction, the CMRR has been incorporated into many aspects of mine planning, including longwall p
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IC 8122 Evaluating Raw Materials For Rotary-Kiln Production Of Lightweight Aggregate
By Howard P. Hamlin
This Bureau of Mines report is concerned with the testing procedures for evaluating clays, shales, and slates for lightweight aggregates using the rotary-kiln method of production. To meet the increas
Jan 1, 1962
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IC 8812 Bureau Of Mines Health And Safety Research - A Status Report Covering Nov. 1, 1978 - May 31, 1979
This status report contains 39 individual reports on health and safety research projects now being conducted or recently completed by the Bureau of Mines. The Reports on health research cover industri
Jan 1, 1979
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IC 8576 Methods And Costs Of Coal Refuse Disposal And Reclamation
The Bureau of Mines is active in programs pertaining to solid waste disposal and land reclamation. Nine reclamation projects of mining companies and six projects of the Commonwealth of Pennsylvania we
Jan 1, 1973
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RI 3839 Mining and Concentration of Missouri Valley Manganese at Chamberlain, South Dakota
By Dupuy. Leon W., R. T. C. Rasmussen, W. A. Calhoun
"INTRODUCTION For many years it has been known that low-grade manganese deposits occur in the bluffs along the Missouri River Valley. Frequent attempts have been made to develop the ore and to produce
Feb 1, 1946
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RI 3968 Exploration of Iron Mountain Titaniferous Magnetite Deposits, Albany County, Wyo.
By Eugene Frey
"INTRODUCTION The Iron Mountain deposits were examined in the summer of 1943 by engineers of the Bureau of Lanes, and a diamond-drilling project was set up under the Strategic Minerals Program. Actual
Nov 1, 1946
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OFR-15-74 Standardization Of Controls For Underground Electric Face Equipment - Section 1. Introduction - Background
By William G. Hedling
The operation of electric face equipment in underground coal mines has proven to be extremely hazardous to mining personnel, including equipment operators and others working in the vicinity of active
Jan 1, 1974
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OFR-86-78 Further Analytical Investigations Of Electromagnetic Fields In Mine Environments - Analysis Of Radio Frequency Transmission In A Semi-Circular Mine Tunnel Containing Two Axial Conductors
By David A. Hall
We present an analysis of the propagation in a uniform tunnel of semi -circular cross section that contains two axial conductors. In particular, we show that, even if one of these conductors has high
Jan 1, 1978
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OFR-102-75 Operating Practice Changes And Control Modifications To Improve The Safety Of Coal Augering Operations ? Introduction And Approach
Auger operations produced 14 million tons of coal in 1974, or approximately 5% of all surface mined coal. It was the most efficient of all coal mining methods, producing 40.0 tons per man-day. Exhibit
Jan 1, 1975
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OFR-13-70 Advisory Conference On Tunnelling - Introduction
By Thomas E. Howard
Man has been engaged in the construction of tunnels in. rock for several thousand years. During that time, methods of tunneling have changed drastically. Hordes of men chipping away at the tunnel face
Jan 1, 1970
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Mining And Quarrying Trends In The Metals And Industrial Minerals Industries
By Arnold O. Tanner
Tables based on 1985 data, which were not available in time for publication of the "1985 Minerals Yearbook," are included in this chapter; corresponding tables for 1986 are not yet available. Raw nonf
Jan 1, 1988
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OFR-196(2)-82 Procedures For Hoist And Shaft Inspection & Maintenance - Volume II
By J. Cseff
A variety of shaft and hoist equipment exists in the United States. Nearly all hoist systems are electrically driven. Machine elements which comprise the hoists and ancilliary equipment include bearin
Jan 1, 1981
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OFR-39A-94-Vol. 1 Ergonomic Analysis Of Surface Taconite Maintenance Work - Final Report - Volume 1 ? Findings - Executive Summary
The research described in this report was conducted under a cooperative research agreement between the U.S Bureau of Mines Twin Cities Research Center (TCRC), Cleveland-Cliffs Inc. (CCI), and three op
Jan 1, 1994
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OFR-35-81 Reclamation And Pollution Control: Planning Guide For Small Sand And Gravel Mines
This field guide is designed for use in planning pollution control and reclamation activities on small sand and gravel operations. Its purpose is to assist operators in selecting environmentally desir
Jan 1, 1981
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IN FOCUS?Cable bolts: a ?new support?
By Thomas P. Mucho
Cable bolts are emerging as the newest ?twist? for roof support in U.S. underground coal mines. For decades cable bolts installed in underground metal mines in the United States and Canada used cement
Jan 1, 1998
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Forecasting Roof Falls with Monitoring Technologies – A Look at the Moonee Colliery Experience
By John L. Edwards, Anthony T. Iannacchione
There has been a persistent need to forecast roof falls so that miner’s exposure to hazardous underground environments can be minimized. Several monitoring techniques have been developed and are used