Abstract： Through the analysis rockburst risk of isolated coal pillar working face, the comprehensive mining technology of the support scheme of old roadway in different layers, presplitting roof cutting pressure relief technology, two roadway top coal recovery technology and prevention of coal seam spontaneous combustion was carried out. This technology solved many problems such as many layers of old roadway, two roadway top coal recovery and coal pressure management in coal pillar working face under complex conditions, which could be used as a reference for the recovery of coal pillar resources under complex conditions and the realization of safe and efficient production.
