​Rock Mass Characterization in Illinois Coal Mines

Southern Illinois University
Illinois Clean Coal Institute
2013-2014
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Project Description: This research is to evaluate rock mass properties of abandoned Illinois coal mines and to establish failure hazard maps for the studied mines. A strength criterion known as Coal Mine Roof Rating (CMRR) is used to evaluate strength conditions of the coal mine roofs. 

A contour map of CMRR values for a specifically mined area which has been developed based on laboratory tests and field inspections

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Related Publications:

Rock Mass Characterization for Roof Control Design for roof control design
‎48th US Rock Mechanics Geomechanics Symposium. Minneapolis, MN (ARMA 2014)