Numerical Study of Mine Site Specific Multiseam Mining and Its Impact on Surface Subsidence and Chain Pillar Stress

摘要: This paper investigates various multiseam mining related parameters using mine site specific data and numerical simulations. Two important effects—subsidence stress—are analysed for different possible layouts. A geological dataset has been used to generate a model. The predicted surface subsidence magnitude profile have compared under scenarios assess potential options in strategies. effects that seam separation distances, offset, panel layout orientation each on chain pillar stress investigated. simulation shows ascending or descending directions little impact controlling the an almost identical maximum development at pillars. Numerical simulations infer of top panels control profile.