February 2018

Study of the roof behavior in longwall gob in long-term condition

Assessment of the roof behavior in longwall gob and estimation of the occurrence of caving and fracturing zones above mined panels are the main factors used in evaluating abutment stresses, ground subsidence, face support and adjacent structures design. The combined height of caving and fracturing zones is taken as equivalent to the height of destressed zone (HDZ) in this study. The long-term estimation of this height...

Author(s): Mohammad Rezaei, Abbas Majdi, Mohammad Farouq Hossaini and Iraj Najmoddini