It was found that current mine layouts have been successful in providing support to the overburden, while a small number of isolated pillar failures were observed. The stable pillar layouts and failed pillars were plotted on a chart that demonstrates the relationship ...

The ISGS has prepared this publication in order to provide information to Illinois homeowners concerned with or experiencing subsidence problems associated with past mining activity. Common damages and problems associated with subsidence are described. Some ...

This paper summarizes the results of a research project whose goal was to provide the Australian coal industry with a rib support design methodology and software tool that could be used by suitably qualified colliery staff. The project was funded mainly by ...

This paper describes the design methodology adopted for stabilization measures of a twin bored highway tunnel in Northern Greece, where severe cracking and translational displacements of the temporary support shell were observed. Cracks occurred due to an ...

At a mine in central PA, high horizontal stresses have caused long running roof falls resulting in hazardous conditions for the miners and the premature abandonment of panels. Because of these conditions, the mine requested assistance of the National Institute ...