Calculation of the limiting deformation in stopping- and-filling by the finite element method and its influence upon the packed volume

摘要

The stability of buildings on the surface will be influenced by underground mining. For the purposes of safe mining and buildings protecting around mining area, the rock and soil distortion should be fore- casted. By using the results of the elastic-finite-element method simulation, we can calculate the tilting, horizon- tal deformation and curvature of the surface and the strata. Wushan Copper Mine was taken as an example to ana- lyze the reasons of accident and beyond standard limit, and the influence on the safety of the packed volumn.