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Multiple-seam interactions are a major ground control hazard in many U.S. underground coal mines. NIOSH has been conducting research to develop better techniques for predicting the location and severity of multiple-seam interactions.
5/1/1995 - NIOSH/USBM numbered publicationsPapers presented at a USBM technology transfer seminar describe the causes of violent material failure in U.S. mines, measurement techniques for monitoring events that result in violent failure, and mitigation techniques for controlling failure.
1/1/1994 - NIOSH/USBM numbered publicationsA computer program called Analysis of Retreat Mining Pillar Stability (ARMPS) is field tested and refined in order to estimate abutment pressures developed during pillaring. It can be successfully employed to predict pillar line stability.