Results 1 - 10 of 18

• AMSS - Analysis of Multiple Seam Stability
  8/20/2013 - PC software
  A software program that helps to identify the location and likely severity of multiple seam interactions
• Exploration of Limestone Pillar Stability in Multiple-level Mining Conditions Using Numerical Models
  5/17/2023 - Peer reviewed journal articles
  A study using FLAC3D models to investigate factors that control pillar stability in multiple-level conditions.
• Geotechnical Considerations for Concurrent Pillar Recovery in Close-distance Multiple Seams
  1/1/2018 - Peer reviewed journal articles
  A paper addressing the geotechnical considerations for concurrent pillar recovery in two coal seams with 21 m of interburden under about 305 m of depth of cover.
• A Case Study of Multi-Seam Coal Mine Entry Stability Analysis with Strength Reduction Method
  3/1/2016 - Peer reviewed journal articles
  This article by NIOSH describes the advantage of using numerical models with the strength reduction method to evaluate entry stability in complex multiple-seam conditions.
• Inundations Can Put Miners at Risk by Blocking Escape Routes
  9/28/2012 - News articles
  Inundation, or water suddenly entering a mine, is not that uncommon.
• Deep Cover Pillar Recovery in the US
  7/1/2009 - Conference papers
  This paper provides an overview of current deep cover pillar recovery practice.
• Technology News 529 - New Technology for Ground Control in Multiple-Seam Mining
  11/1/2007 - Technology News
  Research by NIOSH on multiple-seam mining has resulted in two ground control products. The first is IC 9495 which is a proceedings document. The second is the Analysis of Multiple-Seam Stability software package. Each product is briefly described.
• Multiple-Seam Mining Interactions: Case Histories from the Harris No. 1 Mine
  5/1/2007 - Conference papers, Information Circulars
  A detailed evaluation of the multiple-seam experiences at Harris No. 1 Mine was done as part of NIOSH's nationwide multiple-seam mining case history database.
• Multiple-Seam Mining in the United States: Design Based on Case Histories
  5/1/2007 - Information Circulars
  The goal of this study is to help identify the location and likely severity of multiple-seam interactions. Mine planners can use this information to adjust the ground support, pillar design, or mine layout to minimize the hazard.
• Proceedings: New Technology for Ground Control in Multiple-seam Mining
  5/1/2007 - Information Circulars, NIOSH/USBM numbered publications
  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.