【摘要】 根据屯留矿1202工作面的具体地质条件,通过理论分析、数值模拟和现场实测相结合的方法,确定了裂隙带的高度范围。通过数值模拟研究了不同位置时高抽巷的围岩变形量,确定了高抽巷布置的合理位置。现场矿压观测结果表明,该高抽巷的布设位置合理,巷道变形量对抽采瓦斯的影响不大。更多还原

【Abstract】 According to geological conditions of 1202 working face in Tunliu coal mine, methods of theoretical analysis, numerical simulation and field measurement are combined to determine the height range of fractured zone. Numerical simulation is used to study surrounding rock deformation of roadway in different positions, the reasonable position of high-level gas drainage roadway is determined.According to the field observation data, the layout of high-level gas drainage roadway is reasonable.The volume of roadway surrounding rock deformation doesn’t affect gas drainage much.更多还原