膏体充填开采相似材料法覆岩应力发展规律研究

Research on the development law of overburden strata stress using the similar material method of paste filling mining

该文以级索煤矿16煤层16E104充填工作面为试验原型,采用相似材料模拟的方法研究充填采场覆岩应力的发展规律,结果表明充填采场顶板与底板的应力发展规律有一定的相似性,采场顶板应力经历着从"V"型分布向"U"型分布的转化过程,顶底板的应力大致可分为应力集中区、卸压区和应力恢复区三个区域。本文的成果可以作为现场实测研究和数据分析的基础,还可以为充填采场覆岩沉陷控制提供理论依据。

This paper took 16E10416 iflling working face of JiSuo coal mine as the prototype cable, using the similar material simulation method to study the development law of stope overburden stress, the results showed that the rule of stress development of roof and lfoor in the iflling stope had a certain degree of similarity, the stope roof stress undergone the process of transformation from＆quot;V＆quot;-type distribution to the＆quot;U＆quot;type, the roof and bottom stress can be divided into the stress concentrated area, the pressure relief zone and stress recovery of three zones, the results can be used as the base of ifeld measurement research and data analysis, can also be provide the theoretical basis for the overlying strata subsidence controlling of iflling mining.