固体充填材料压实特性及应用

Compaction Characteristics and Application of Solid Filling Material

针对目前广泛应用的5种固体充填材料,设计实验方案,对其压实特性展开研究,得出在侧限压缩条件下的应力-应变、应力-密度和压实本构特性规律,为固体充填采煤技术控制岩层及地表变形研究提供基础数据;并基于压实特性,制定了5种充填材料充填采煤工艺标准-夯实力设计指标和充采质量比,为各矿区选用不同充填材料进行固体充填采煤提供指导。

In view of the present widely used five solid filling materials,we design experiment schemes,study the compaction characteristics,and conclude that stress-strain,stress-density and compaction constitutive characteristics under the condition of lateral confined compression,which provides the basic data for controlling strata and ground surface deformation by solid filling mining technology; based on the compaction characteristics,we formulate five kinds of solid material filling mining technique：compaction force design index and mass ratio,it provides guidance for different mineral fields in the selection of solid filling materials.