ABSTRACT
Abstract: The design features of support systems for longwall panel roadways and of coal pillars are discussed in detail. The main support design methods such as empirical, numerical, and analytical methods are described. Ground-reaction curve approach for main gallery design is also presented. The widely used numerical modeling methods are presented. Monitoring techniques used to evaluate the performance of the designed support systems are given. Finally, the general guidelines for safe and economical support system and pillar design for underground coal mining are drawn.
