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Results 51 - 60 of 86
4/1/2005 - Peer reviewed journal articlesDiscusses a study that used a CFD program (fire dynamics simulator) based on large eddy simulations (LES) to model floor-level fires in a ventilated tunnel. The CFD results are compared with two simple theories of critical ventilation.
5/1/2004 - Conference papersResearchers are investigating the causes and mechanisms of roof failure in underground mines with the goal that better understanding these issues will lead to better layout and support designs to help prevent fall-of-ground accidents and fatalities.
Developing Random Virtual Human Motions and Risky Work Behaviors for Studying Anthropotechnical Systems3/1/2004 - Information CircularsThis report documents the code development of special features for a computer model, random virtual human motions and behaviors, which made it possible for researchers to study hazardous interactions, such as contacts between the operator and machine.
4/1/2003 - Technology NewsThe Coal Mine Roof Rating (CMRR) is a roof classification system. It was first introduced to the mining community in 1994. It has now been written to a user friendly version that can be run on any PC with a Windows operating system.
2/1/2003 - Conference papersIn this paper, existing ore pass design criteria rules-of-thumb using current particle flow equations are reviewed and a comparison of two computer modeling programs, Working Model (WM 2-D) and PFC2d, to simulate rock flow are investigated.
1/1/2003 - Conference papersComputer human modeling was used to examine machine appendage speed. The objective was to determine the impact of roof bolter machine appendage speed on the likelihood of the operator coming in contact with the appendage.
Lightning Propagation Through the Earth and its Potential for Methane Ignitions in Abandoned Areas of Underground Coal Mines10/1/2002 - Conference papersThis paper addresses the question, 'Can lightning cause potential differences capable of igniting methane-and-air mixtures at overburden depths at which underground coal mining occurs?'
8/1/2002 - Conference papersThis paper discusses the Mine Emergency Response Interactive Training Simulation (MERITS), a computerized simulation for providing mine emergency command center training.
7/1/2002 - Reports of InvestigationsThe process of drilling and bolting the roof is currently one of the most dangerous jobs in underground mining, resulting in about 1,000 accidents with injuries each year in the United States. Researchers from the Spokane Research Laboratory of the Nat...
6/1/2002 - Technology NewsMERITS simulates underground and surface events related to the disaster. It exposes the user to events that typically occur during a mine emergency, such as lack of information and miscommunication. It also presents trainees with issues that must be add...