Abstract: In view of the obvious ground pressure appearances in deep mining (mining depth exceeding 1 000 m) of No.2 Mining Area of Jinchuan Group，the on-line micro-seismic monitoring system for deep ground pressure has been established in the underground,and the all-weather continuous monitoring and analysis of ground pressure activity in mine have been realized.The characteristics,identification models and effective rock fracture micro-seismic signals of various micro-seismic monitoring signals produced by deep mining in No.2 Mining Area of Jinchuan Group have been extracted and obtained.The spatial activity law of microseismic events and the distribution law of ground pressure in deep mining are revealed,which effectively guarantees the safe mining of mines.

Key words: Ultradeep mines, Ground pressure, Microseismic monitoring, Signal identification, Trend prediction