Abstract: Mining filling process is three dimensional simulation calculated by finite element simulation software. The results of numerical simulation is the same with the field measured data. The main technical index of the ming surface deformation is less than the I level building deformation. The impact of the surface displacement after backfilling mining cemented filling mining method on the ground building facilities is not tremendous. The stability of the surface structures can be guaranteed.

Key words: Finite element software, numerical simulation, The surface displacement, Stability