Study on time-space rule of over-extraction roadway deformation for an isolated fully-mechanized mining face with sublevel caving

摘要

Based on the field measurement in an over-extraction roadway of the face N0.4303 isolated fully-mechanized with sublevel caving in Dongtan Coal Mine, time-space relation between roadway deformation and work face is studied and various influencing factors are analyzed in this paper, it can provide basis for roadway layout, roadway reinforcement or maintenance design.