Abstract:

According to the status of bad support effect of mine roadway by using the multistage?support system in the?rock burst, the surrounding rock?deformation failure mechanism is analyzed,it is pointed out that the high?stress,?intense dynamic loading?and?pressure relief,failure bolting system is the basis,characteristics?and key factors causing strong deformation of surrounding rock?.Combined with the roadway damage?characteristics and?analysis on the bolt support failure system?,It is suggested that the key to maintenance roadway is weakening the impact of surrounding rock deterioration to the bolt support system，and the the control countermeasures are put forward.Based on the results of study,the new control?scheme and parameters are determined,which are tested,the results?showed that?the application effect of new control scheme is very good.

Key words: rock burst?, intense dynamic loading, pressure relief, surrounding rock deterioration, balance control