Abstract Hydraulic support is the primary equipment used for surrounding rock control at fully mechanized mining faces. The load, location, and attitude of hydraulic are important sets basis data to predict roof disasters. This paper summarized analyzed status coal mine safety accidents influencing factors work also proposed monitoring characteristic parameters disasters based on posture-load c...

Fundamental understanding of the goaf gas distribution in a gassy coal mine is necessary for developing effective goaf gas drainage strategies in the longwall coal mine. The goaf gas was subjected to the surface and body forces that were classified depending upon whether they acted on the surface area or the volume of the gas element. Of these forces, the body forces were more predominant in di...