In this paper,some main shortcomings when traditional equilibrium method (LEd)is to be used on rock slope with single slide plane are pointed out,and then a new stability analysis method on the slope in slide plane deformation is studied.

Synoviomorphous of the knee joint is observed on the screen of the monitor through camera under the German-made Wolf knee arthroscope.

To counter the shortcomings existing in limit-equibrium method(LEM),the stability analysismethod considering the deformation of the slide plane in wedge is presented in this paper,the results ofstability analvsis coincldes with test values,While the safty factor calculated in LEM is a bit too great.