Research On Longwall Rigid Separating Pillar Mining Technology Of Small Colliery In YSF Field

Based on the situation of coal mine production, the problems about safety and resource using existing in personal small collierys are studied through a large numbers of investugation and analysis on YSF coal field's geological characteristic. The feasibility that room and pillar mining being applied are gived out in YSF coal field after particular analyzing it's working principle and the analyse method of pillars'strongth.It points out that the room and pillar mining will not be completely forbidden in a short time because of it's small investment and the coal measures'advantageous existing and exploiting conditions.Based on the reseach above, the alterating technology to room and pillar mining has been studied by considering the safe situation of coal mine production, especially new mining methed which called longwall rigid separating pillar mining.Through the analysis,it is proved to have the merit that could be popularized,mostly because of it's improvements beyond the old room and pillar mining upon safty and resource using.At the same time,it advises that the technology of small colliery will develop following three points:safekeeping, resource most using, environment protacting.At last,after safe analyzing to a colliery called Xinyuan, problemes and corresponding alterating technology are gived out ,also it's rationality and siencility.In a word,it has boosted the development of technology in small colliery.