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Results 91 - 100 of 142
10/1/2004 - Conference papersDescribes a method for assessing equipment jolting using a combination of "black boxes" called Shox Boxes and an onboard GPS system. The resulting configuration provides an objective assessment of jolting and a chance to determine its root causes.
8/1/2004 - Conference papersMore that 700 microseismic emissions were collected from two underground limestone mine roof fall areas in southwestern PA. Results reveal much about the behavior of strata prone to failure and allow for the construction of hazard maps.
Discusses implementation of a real-time neural network which can discriminate mine fires from nuisance diesel emissions as part of an atmospheric mine monitoring system in NIOSH's Safety Research Coal Mine.
This study describes how response times of machine-mounted methane monitors were measured by placing the methane sensor heads in a specially designed box where they were exposed to an atmosphere containing a constant concentration of methane.
Several remote sensing technologies are being evaluated as tools to assess slope stability and monitor slopes for hazards. An interferometric radar device capable of detecting very small displacements on slopes has been assembled and tested.
2/1/2004 - Conference papersThis paper examines the capabilities of convergence and microseismic monitoring systems to better understand roof rock failure mechanics and anticipate falls. Understanding these techniques is critical in developing effective ground control strategy.
2/1/2004 - Conference papersA general overview of the blasting and CO monitoring of a highway construction project is presented and discussed. The use and effectiveness of residential type CO monitors and multi-gas monitors are discussed.
Remote Monitoring of Mine Seismicity and Earthquakes Using Radio Telemetry, Computers, and the Internet9/1/2003 - Conference papersA system to collect seismic data at the Stillwater and East Boulder mines was developed to get baseline information on the magnitude and location of mining-induced seismicity to determine if the mines needed multi-channel in-mine monitoring systems.
10/1/2002 - Conference papersResults of experiments to train a neural network to detect coal and styrene-butadiene-rubber conveyor belting fires. Six of the seven experiments were conducted in the presence of diesel exhaust.
10/1/2002 - Conference papersReport on the development and field testing of a solar powered, remote gob gas venthole monitoring and cellular telephone-based real-time data transmission system.