矿井井筒围岩流变对井筒稳定性的影响

The Influence of Creeping of Surrounding Rock on Shaft Stability

根据流变力学的基本理论，分析了矿井井筒围岩的流变引起支护衬砌中应力和位移随时间的变化规律，建立了与时间有关的支护衬砌破坏准则，对矿井井筒的支护设计和预计衬砌不同时期的受力和稳定性有一定的参考意义。

In this paper,for the case of creeping of surrounding rock of shaft, the law of stress anddisplacement changing with time in the shaft lining was analysed with theory of rock creep, and the timedependent failure criterion of shaft lining was established. The research is significant for supportting designof shaft and the stress in the lining and its stability prediction at different periods.