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A method to eliminate explosion hazards in auger highwall mining

Personal Author:

Volkwein, J. C. (Jon C.); Ulery, J. P. (James P.);

Corporate Author:

United States. Bureau of Mines.

Published:

1993

Series:

Report of investigations (United States. Bureau of Mines) ; 9462

Description:

"The U. S. Bureau of Mines investigated a method of using inert gas to prevent the formation of explosive gas mixtures in auger highwall mining of coal. A combination of gasoline and diesel engine exhaust gases was introduced into the auger drill hol...

File Type:

[PDF - 1.68 MB]
Simplified Hyperspectral Imaging for Improved Geologic Mapping of Mine Slopes

Personal Author:

McHugh, Edward L.; Girard, Jami M.; Denes, Louis J.;

Published:

0/1/1900

Description:

A prototype portable hyperspectral imager that operates in the visible and near-infrared ranges of the electromagnetic spectrum was field tested at an open-pit mine. The tests were sponsored by the Spokane Research Laboratory, National Institute for ...

File Type:

[PDF - 1.82 MB]
Effect of additives on chalcopyrite leaching

Personal Author:

Schultze, L. E. (Lawrence E.); Sandoval, S. P. (Scot Philip), 1958-; Bush, R. P.;

Corporate Author:

United States. Bureau of Mines.

Published:

1995

Series:

Report of investigations (United States. Bureau of Mines) ; 9556

Description:

"Experiments were conducted by the U.S. Bureau of Mines to verify enhancements due to chloride and surfactant additions in the leaching system of chalcopyrite with ferric sulfate and sulfuric acid. A statistical experimental design was used and equip...

File Type:

[PDF - 817.56 KB]
Relationships between annulus thickness and the integrity of resin-grouted roof bolts

Personal Author:

Ulrich, Bryan F.; Wuest, William J.; Stateham, Raymond M.;

Corporate Author:

United States. Bureau of Mines.

Published:

1989

Series:

Report of investigations (United States. Bureau of Mines) ; 9253

Description:

"If resin-grouted roof bolts are not installed correctly, mine roof reinforcement can be affected, and roof falls can result. A bolt installation variable that is readily controlled by the mine operator is annulus thickness. The ojective of this U.S....

File Type:

[PDF - 2.17 MB]
Analysis Of Nonstandard Noise Dosimeter Microphone Positions

Personal Author:

Byrne, David C.; Reeves, Efrem R.;

Published:

0/1/1900

Description:

This study was conducted as part of a project involving the evaluation of a new type of noise exposure monitoring paradigm. Laboratory tests were conducted to assess how nonstandard dosimeter microphones and microphone po sitions measured noise level...

File Type:

[PDF - 617.58 KB]
Optimizing Secondary Roof Support With The NIOSH Support Technology Optimization Program (Stop); Proceedings: New Technology For Coal Mine Roof Support

Personal Author:

Barczak, Thomas M.

Published:

10/1/2000

Description:

The 1990s brought an unprecedented increase in the development of innovative technologies to provide more effective and easier-to-install roof support in underground mines. To facilitate the application of these technologies in improving mine safety,...

File Type:

[PDF - 555.85 KB]
Design Of A Test Bench To Evaluate The Vibration Emission Values Of Jackleg Rock Drills - Introduction; Proceedings Of The First American Conference On Human Vibration

Personal Author:

Marcotte, Pierre; Ouellette, Sylvain; Boutin, Jérôme; Boileau,Paul-Émile; Leblanc, Gilles; Oddo, Rémy;

Published:

6/1/2006

Description:

ackleg rock drills are widely used in the mining industry and are known to generate high levels of hand-arm vibration which contribute to the development of the hand-arm vibration syndrome for exposed miners.1-3 To reduce the vibration levels, a prot...

File Type:

[PDF - 155.35 KB]
Smoke Reversal Interaction with Diagonal Airway - its Elusive Character

Personal Author:

Edwards, J. C.; Friel, G. F.; Yuan, L.; Franks, R. A.;

Published:

0/1/1900

Description:

The reversal of smoke products-of-combustion (POC) from a mine fire was determined in a mine section with the airway connectivity of an electrical Wheatstone bridge. Four diesel-fuel fire experiments with fire heat-release rates between 504 and 771 k...

File Type:

[PDF - 521.85 KB]
Zero-surface-charge-controlled drilling for enhanced penetration and extended bit life

Personal Author:

Pahlman, J. E. (John E.)

Corporate Author:

United States. Bureau of Mines.

Published:

1989

Series:

Report of investigations (United States. Bureau of Mines) ; 9277

Description:

"The U.S. Bureau of Mines has continued its investigation of chemical additive drilling fluids that produce a zero surface charge (zsc) on a rock to better define the boundary conditons of the phenomenon. Laboratory drilling tests were performed on M...

File Type:

[PDF - 11.01 MB]
Expectations Training for Miners Using Self-Contained Self-Rescuers in Escapes from Underground Coal Mines

Personal Author:

Kowalski-Trako?er, Kathleen M.; Vaught, Charles; Brnich, Michael J., Jr.;

Published:

1/1/2008

Description:

National Institute for Occupational Safety and Health researchers conducted a study to investigate the human response issues related to wearing a self-contained self-rescuer (SCSR). The goal was to develop training to educate miners on what they co...

File Type:

[PDF - 139.93 KB]
Effects of various longwall chain pillar configurations on gate road stability

Personal Author:

Listak, Jeffrey M.; Zelanko, Joseph C.; Barton, T. M. (Timothy M.);

Corporate Author:

United States. Bureau of Mines.

Published:

1988

Series:

Report of investigations (United States. Bureau of Mines) ; 9184

Description:

"The Bureau of Mines conducted a field study to assess the performance of various chain pillar configurations in terms of gate road entry stability. Vibrating wire stressmeters (vws's) were installed in four consecutive gate road chain pillars. Field...

File Type:

[PDF - 1.03 MB]
Development and testing of a computer-assisted remote control system for the compact loader-trammer

Personal Author:

Ruff, T. M.

Corporate Author:

United States. Bureau of Mines.

Published:

1992

Series:

Report of investigations (United States. Bureau of Mines) ; 9431

Description:

"A prototype mucking machine designed to operate in narrow-vein stopes was developed under contract with the U.S. Bureau of Mines. The machine, called a compact loader-trammer, or minimucker, was designed to replace slusher muckers in narrow-vein und...

File Type:

[PDF - 1.79 MB]
Field Evaluation Of Mobile Roof Support Technologies

Personal Author:

Maleki, Hamid; Owens, John; Endicott, Marc;

Published:

0/1/1900

Description:

This study presents a historic overview of the role of mobile roof support (MRS) technologies in improving stability and worker safety and presents the results of recent field evaluations of the MRS load rate monitoring device and other remote deform...

File Type:

[PDF - 848.12 KB]
Comfort Evaluation For Mine Shuttle Car Seat Designs - Introduction; Proceedings Of The First American Conference On Human Vibration

Personal Author:

Mayton, Alan; Jobes, Christopher; Kittusamy, N. Kumar; Amirouche, Farid;

Published:

6/1/2006

Description:

Industrial equipment exposes individuals to whole-body vibration (WBV) and mechanical shock. This exposure can negatively impact their health, safety, comfort, and working efficiency and performance. Accordingly, proper seat design is an important co...

File Type:

[PDF - 196.79 KB]
Prospective Studies Of Vibration Exposed Cohorts: Hand-Arm Vibration International Consortium (HAVIC) - Introduction; Proceedings Of The First American Conference On Human Vibration

Personal Author:

Cherniack, M.; Brammer, A. J.; Lundstrom, R.; Meyer, J. D.; Morse, T. F.; Neely, G.; Nilsson, T.; Peterson, D.; Toppila, E.; Warren, N.;

Published:

6/1/2006

Description:

HAVIC is a collaboration of investigators from North America, Sweden, and Finland having a scientific mandate from NIOSH, to study the exposure response relationship between vibratory tool exposure and adverse health effects. Five cohorts, the Suomos...

File Type:

[PDF - 248.16 KB]
Regional Cerebral Oxygenation And Blood Volume Responses In Healthy Women During Seated Whole-Body Vibration (WBV) - Introduction; Proceedings Of The First American Conference On Human Vibration

Personal Author:

Maikala, Rammohan V.; Bhambhani, Yagesh N.;

Published:

6/1/2006

Description:

Landstrom et al. (1985) suggested the possibility of cortical activation during exposure to WBV, however, it is not known how cerebral physiology (oxygenation and blood volume) responds in healthy women during different vibration frequencies. This st...

File Type:

[PDF - 168.00 KB]
Assessing Coal Mine Roof Stability Through Roof Fall Analysis; Proceedings: New Technology For Coal Mine Roof Support

Personal Author:

Molinda, Gregory M.; Mark, Christopher, PH.D.; Dolinar, Dennis;

Published:

10/1/2000

Description:

In 1999, 2,087 unplanned roof falls were reported from 841 mines. Nearly 55% of all mines reported at least one roof fall, and nearly 17% of the mines reported five or more falls. In order to investigate the variables that contribute to roof falls, t...

File Type:

[PDF - 653.39 KB]
Evaluation Of Two-Phase Spray System For Airborne Dust Control In A Longwall Gallery

Personal Author:

Belle, B. K.; Ramani, R. V.; Colinet, J. F.;

Published:

0/1/1900

Description:

The increased effectiveness of a two-phase spray system (TPSS) over a single-phase spray system (SPSS) for dust suppression is reported in several laboratory studies. The dust collection efficiencies of SPSS and TPSS were studied in a model experimen...

File Type:

[PDF - 632.15 KB]
Mobile Roof Support Load Rate Monitoring System

Personal Author:

Howie, Wayne L.; Owens, John K.;

Published:

0/1/1900

Description:

Mobile roof support (MRS) machines are used as roof support during pillar recovery in retreat operations in lieu of wooden posts, cribs, or hydraulic props. A Mine Safety and Health Administration-permissible load rate monitoring system was developed...

File Type:

[PDF - 489.89 KB]
An Approach To Identify Jobs For Ergonomic Analysis

Personal Author:

Cornelius, Kim M.; Turin, Fred C.; Wiehagen, William J.; Gallagher, Sean;

Published:

0/1/1900

Description:

An important part of initiating a site-wide ergonomics evaluation process is prioritizing jobs to be analyzed. While injury data is important, other factors such as worker discomfort and physical exertion requirements, should be considered. This pape...

File Type:

[PDF - 371.76 KB]

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