NUMERIC ANALYSIS ON INFLUENCING FACTORS OF DISCONTINUOUS SURFACE DEFORMATION CAUSED BY STEEPLY-INCLINED SEAM MINING

摘要

This paper deals with the shape and influencing factors of surface non-continuous deformation caused by mining. With finite element method, analyses are made to identify the relations between discontinuous deformation and mining affection, weak-plane's position and thickness, and mechanical property of weak-plana medium. The mutual affection of multiple weak-planes is also discussed. The results of the paper lay a foundation for generaty a calculation method of surface discontinuous deformation.