MSHA - Directorate of Technical Support

A Troubleshooting Guide for Roof Support Systems

    Supports included in this guide represent the most common roof supports used for mining applications. The problems and probable causes listed in each section are the result of data accumulated from years of laboratory and field investigations. Even though the guide is quite comprehensive, it is not intended to solve every conceivable problem that might be encountered. Also, supports such as roof trusses, frictional anchorage devices, and cable bolts are not discussed..