通过建立力学简化模型,分析了充填法采煤方式下充填支架与围岩的关系。研究发现:充填采煤方式下,由于充填体起到支撑直接顶和基本顶的作用,直接顶的初次垮落步距增大,采场周期来压现象不明显,对地表的破坏程度降低。同时,通过对直接顶载荷的估算,为充填支架的设计和应用提供了依据。 Through the establishment of mechanics simplified model, the relationship between filling support and surrounding rock under filling coal mining method was analyzed. The results show that under the condition of filling coal mining, the filling body plays the role of supporting the direct roof and the basic roof, and the initial caving step of the direct roof increases, and the phenomenon of staging pressure is not obvious and the damage to the ground surface is reduced. At the same time, the estimation of the direct top load provides the basis for the design and application of the filling bracket.