Simulation on dynamic movement and deformation laws of buildings in mining area;

Algorithm of ground movement and deformation prediction in mining of random shape face;

Numerical simulation of the effect of thickness mining and loose seam s thickness on ground movement and deformation in mining subsidence;

This article mainly discusses the process of surveying surface three-dimension on similitude simulation test on mining subsidence indoor,the surveying data can be translated by visual program,surface displacement and deformation can be resulted by its relation,it resolves the difficult problem of how to survey the surface displacement and deformation on similitude simulation test.

Referring to the geological and mining conditions, and according to the mechanism of strata and displacement, the factors affecting the displacement and deformation, and the relationship between forwarding of working face and ground deformati.

Numerical simulation of stress distribution and displacement of rock strata of coal mines by means of DDA method;

The predicting formulas of the tunnel movements and deformations are educed.

Based on the mining condition of thick ore in the depth of soft rock,hyperbolic functions method is applied to analyze the rock mass displacement and deformation due to the underground mining of ore deposit in this paper.

According to the characters of the rock mass displacement and deformation for the deep ore deposit excavation,the two-dimensional problem of surface subsidenc due to underground mining is analysed by stochastic medium method and the software ANSYS respectively.