Results 71 - 80 of 82

• Technology News 461 - Coal Dust Explosibility Meter
  7/1/1997 - Technology News
  Describes a device to enable mine operators and mine inspectors to make quick and accurate measurements of the explosive nature of coal and rock dust mixtures.
• Impact, Thermal, and Shock Sensitivity of Molten TNT and of Asphalt-Contaminated Molten TNT
  7/1/1996 - Conference papers
  Research evaluating the autoclave meltout process to recover TNT from MK-9 depth bombs.
• Evaluation of Polymer Construction Material and Water Trap Designs for Underground Coal Mine Seals
  1/1/1996 - Reports of Investigations
  Strength characteristics and air leakage resistance of seals and designs of water traps used in underground coal mines were evaluated in a joint effort by the Pittsburgh Research Center and the Mine Safety and Health Administration.
• U.S. Bureau of Mines Technology Applicable to Disaster Response, Urban Search And Rescue
  4/1/1994 - Conference papers
  Since 1910, the U.S. Bureau of Mines (USBM) has investigated practical ways of dealing with the consequences of major fires and explosions in underground mines.
• Rapid (Grab) Sampling During Full-scale Explosions - Microscopic and Analytical Evaluation
  1/1/1988 - Reports of Investigations
  The Bureau of Mines has developed a system using a high-speed electropneumatic mechanism for the rapid (grab) sampling of dusts and gases during an explosion to monitor pyrolysis-charring in coal particles and combustion of pyrolysis vapors.
• Use of a Sodium Silicate Gel Grout for Plugging Horizontal Methane-Drainage Holes
  1/1/1984 - Reports of Investigations
  Methane-drainage holes must be completely filled by grout before mining to prevent the emission of large quantities of gas during mine-through, which would constitute an explosion hazard. In November 1980, seven horizontal holes at the multipurpose bore...
• Initial Study of Buried Communication Cable for Underground Mines
  2/1/1982 - Contract reports
  The objective of this project was to perform a preliminary study to determine the desirability/practicality of burying the communication cables in underground mines in order to protect then from the effects of fires and explosions. We found the overall ...
• Direct Method Determination of the Gas Content of Coal: Procedures and Results
  1/1/1981 - Reports of Investigations
  Describes a simple, inexpensive test to measure the methane content of coal samples obtained from exploration cores. The results of tests are summarized in tabular form. These results include data on the gas content of 125 coalbeds in 15 states.
• Methane Control in United States Coal Mines - 1972
  1/1/1973 - Information Circulars
  Presents a brief summary of the explosion trends in United States coal mines for the past 160 years.
• First Series of Coal-Dust Explosion Tests in the Experimental Mine
  4/1/1913 - NIOSH/USBM numbered publications
  A USBM report that presents the results of the first series of coal dust tests conducted in the experimental mine, along with a description of the experimental mine and its establishment.