充填法开采充填支架与围岩关系研究

Research on Filling Support and Surrounding Rock Under Filling and Mining Coal

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。

The relation between the filling mechanics and simplified model under filling can support the immediate roof and basic support and the surrounding rock is analyzed by the and mining. The studies shows that because filling body roof, the initial caving distance of immediate roof increases and the cycle pressure of stope is not obvious ,thus reducing the surface damage. At the same time, the estimate about the load of the immediate roof is a foundation for the design and application of the filling support..