THE FRACTAL INCREMENT OF DYNAMIC SUBSIDENCE OF THE GROUND SURFACE POINT INDUCED BY MINING
采矿引起地表点动态下沉的分形增长规律研究

The regularity of the dynamic subsidence fractal increment of theground surface point is revealed for the first time. The research results indicate that the dynamic subsidence curves of the ground surface point show statistical fractal character and follow the fractal increment model of the shape of large “z” inlaid with small “z”. The fractal interpolation in the dynamic subsidence curves of the ground surface point is realized. Based on limited subsidence data observed in site, the subsidence value of the ground surface point at any time can be evaluated in certain precision. This gives a new way to predict the dynamic subsidence and dynamic deformation of the ground surface point. At the same time, through the regularity of the dynamic subsidence fractal increment of the surface point, the physical mechanism of interior rock movement and damage is disclosed, which is of theoretical importance to study mining subsidence.