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Results 561 - 570 of 580
1/1/1998 - Peer reviewed journal articlesRoof and rib conditions were observed and assessed in 33 underground stone mines. It was found that selection of the mining horizon and mine layout decisions tremendously influence ground stability.
9/1/1997 - Peer reviewed journal articlesThis study describes methods of limiting cascading pillar failure, which occurs when a pillar in a mine layout fails, transferring its load to other pillars, causing failure. Design approaches are shown with examples for coal mining at shallow depth.
8/1/1997 - Peer reviewed journal articlesThe study was conducted to determine whether the kneeling posture alters extension torque capabilities in isometric and isokinetic exercises as compared with standing. A split-pilot experimental design was used to evaluate the influence of posture, tru...
3/1/1997 - Peer reviewed journal articlesA system to reduce occupational dust exposure during bag loading and stacking operations in the metal mining industry was developed. The system, known as the Bag and Belt Cleaner Device (B&BCD), was developed by NIOSH.
2/1/1997 - Peer reviewed journal articlesIn 1986 the U.S. Bureau of Mines (USBM) embarked on a major research effort to develop technology that can substantially reduce worker exposure to face hazards simply by relocating the equipment operators to an area of relative safety. This paper repor...
An investigation of the hazards in and around ore passes in hard rock mines. Risk assessment methods, such as fault-tree analysis, have been employed to identify the most probable causes of ore-pass failures, define research priorities and analyze the f...
In fiscal 1996, the US Congress directed that the US Bureau of Mines (USBM) be closed. This article provides a summary of the continuing functions, the agencies involved and the points of contact for each continuing function.
In an effort aimed at monitoring mining-induced stress changes that may influence ground failure, the U.S. Bureau of Mines conducted a series of active 3-D seismic tomographic surveys at the Homestake (Lead, South Dakota) and Lucky Friday (Mullen, Idaho...
9/1/1996 - Peer reviewed journal articlesThe US Bureau of Mines has developed an alternate method for facilitating lighting system mock-ups.
Status of a Tapered Element, Oscillation Microbalance-Based Continuous Respirable Coal Mine Dust Monitor1/1/1996 - Peer reviewed journal articlesIn response to the Mine Safety and Health Administration's request, the U.S. Bureau of Mines investigated several sensor technologies for continuously monitoring respirable coal mine dust. One of these technologies is the tapered element, oscillating m...