Abstract: In order to study the characteristics of the deep shaft full-mechanized caving mining abutment pressure distribution, field measurement focusing on vertical stress has been carried out by using microseismic and online stress monitoring system at 1306 working face in Zhaolou mine．The research shows that the process of workface extracting can be divided into three stages: initial mining stage, “square stage” and normal mining stage. Advanced abutment pressure of the “square stage” exists three parts, that is the initial affect range, significantly affect range and severe affect range. The initial and normal mining stage has no obvious rising stage. The abutment pressure affect scope and the peak stress of the “square stage” are 1.5-1.7 times higher than those of the other two stages. According to the characteristics of abutment pressure distribution, reasonable advance support distance and controlling measures of different recovery stages were determined.

Key words: microseismic monitoring, online stress monitoring, deep mine, fully-mechanized sublevel caving face, abutment pressure