Abstract:Through the analysis of engineering geology and hydrological geology in Yanzhou mine,it is found that the main reason for shaft damage is the compression of bottom aquifer and there is a law between head loss of bottom aquifer and shaft lining damage. The additional force in the shaft lining results from the compression of the bottom aquifer and causes deformation and failure of shaft lining. The fracturing process of shaft lining is numerically simulated by the Lagrangian element method.The result reveals the changing laws of different factors in the process of shaft lining fracturing;and the shaft damage theory is obtained. The theory provides a firm basis for harnessing of Yanzhou shaft lining damage;and it will play an important role in the fracturing mechanism analysis and prevention and harness for shaft lining.