Results 1 - 3 of 3

• Technology News 517 - New Updates for NIOSH Coal Mine Ground Control Software
  4/1/2006 - Technology News
  Updates to the NIOSH suite of coal mine ground control software are described, including the Analysis of Roof Bolt Systems (ARBS), the Support Technology Optimization Program (STOP), and the Coal Mine Roof Rating (CMRR).
• Technology News 505 - NIOSH Releases New Coal Mine Roof Rating Software
  4/1/2003 - Technology News
  The 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.
• Technology News 445 - Updated Analysis of Longwall Pillar Stability (ALPS) Computer Program Incorporates New Coal Mine Roof Rating (CMRR)
  2/1/1995 - Technology News
  The objective of this work is to develop a comprehensive, practical method for designing longwall gate entries that considers coal pillar size, mine roof quality, and artificial support in an easy-to-use computer program.