STUDY OF DELAY INSTABILITY ON SURROUNDING ROCK MASSES OF ROADWAY
井巷围岩的延迟失稳机理分析

By considering the sandwich character of surrounding rock masses and the creep feature of deep rock in coal mines, a plate buckling model of delay instability of rock masses is established. The delay instability of surrounding rock masses with layer-crack structure is analyzed by viscoelasticity theory. The stability of surrounding rock masses and the time delay of rockburst are considered when turbulence load is applied. At last, some calculating examples are given.