不同开采方式的巷道变形及顶板稳定性研究

摘要

Based on the 2304 face of a mine of coal thickness 5.2m fully mechanized caving mining background, use of FLAC3D, UDEC, a gob of different mining methods and roof fracture characteristics of simulation. Simulation obtained large mining and caving mining gob deformation characteristics of roof pressure step, and a theoretical analysis, simulation results are consistent with the theoretical analysis; the results of on - site roadway maintenance.%基于某矿2304工作面煤厚5．2m综放开采背景，利用FLAC3D、UDEC进行了不同采矿方法沿空巷道和顶板断裂特征模拟。模拟得出了大采高开采和综放开采的沿空巷道变形特征、顶板来压步距，模拟结果与理论分析基本一致。