Multi-parameter monitoring and early warning system of rock burst under "two hard" condition

Rock burst along goaf roadway was taken as the main research object under the condition of "two hard", namely the combined condition of hard roof and floor of coal seam, the influence factors and occurrence characteristics of rock burst in Datong mining area were investigated and analyzed.By analyzing the key points of integrated prevention and control of typical rockburst mines, the implementation of monitoring and early warning system and the on-site practice of relieving danger, a comprehensive prevention and control system of rock burst based on the division of dangerous area of rock burst and multi-parameter monitoring and early warning system of goaf roadway under the condition of "two hard" has been formed. The research results can provide a basis for taking targeted monitoring and early warning and dynamic regulation measures for goaf mining roadway under "two hard" condition.