Aiming at the characteristic of the distortion of the extremely hard maintained roadway, the numerical analysises were made on surrounding rock stress and displacement in roadway with FLAC program.

• 针对极难维护放顶煤回采巷道的变形特点,依据FLAC程序对不同支架形式的巷道围岩应力场和位移场进行了数值模拟。