Abstract: On the basis of dislocation model，a simple rectangular dislocation model that is suitable for coal mine subsidence mechanism is established according to the characteristics of coal mine subsidence and the actual situation of the coal mine excavation. Monte Carlo method joints simple dislocation model to explain the subsidence of the work face in the one of coal mine of Jiang Xi province by using the data of level observation. The results of inversion show that the trend of the inversion closely fits the routine monitoring data.

Key words: Simple dislocation model, Subsidence of coal mine, Monte Carlo method, Inversion