ABSTRACT

Due to the deficiency of resource conditions and the limitation of geological conditions, mining technology, equipment and facilities, mines was basically mined by using scattered layout form of small mine, multi section, long front, and many personnel, etc. Therefore, it caused the particularity of roadway supporting because of complex occurrence conditions. Small coal mines, and other man-made factors. Its particularity was as follows:

1. The geological condition was complex, and due to too many faults, fracture zone and the joint development zone, the strength of roadway surrounding rock was low.