NUMERIC ANALYSIS ON INFLUENCED FACTORS OF DISCONTINUOUS SURFACE DEFORMATION DUETO STEEPLY-INCLINED SEAM MINING

This paper deals with the shape and influenced factors of surface non-continuous deformation due to mining. With finite element method, analysis are made to derive the relations between discontinuous deformation and mining affection, weak plane's position & thickness, and mechanical property of weak-plane medium. The mutual affection of multiple Weak-planes is also discussed. The results of the paper lay a foundation for constructing the calculation method of surface discontinuous deformation.