似膏体充填开采导水断裂带高度确定方法研究

Height determination of water conducting fractured zone in backfill mining with paste-like material

为深入研究充填开采覆岩的断裂带高度发育特征,采用砌体梁力学模型和材料力学理论相结合的研究方法,提出了充填开采导水断裂带发育高度的计算方法,利用该方法对红阳煤矿10803工作面覆岩断裂带高度进行计算,得到其覆岩断裂带高度为13.38m;并采用物探技术对10803工作面覆岩断裂带范围进行探测验证,探测结果为13.2m。理论计算结果和物探结果高度吻合,说明采用砌体梁力学模型和材料力学相结合的方法分析覆岩断裂带范围方法正确可行。

To get a deep insight into the fractured zone characteristics of overlying rock of backfilling mining working face,researchers combined voussoir beam model and theory of material mechanics,and proposed a method for height calculation of water conducting fractured zone,which was used in 10803 working face of Hongyang coal mine and the result was13. 38 m. According to the physical detection on the fractured zone of 10803 working face the height was 13. 2m. The theoretical calculation result matched with the physical detection result, which showed that the proposed method was applicable and feasible for analyzing the height of fractured zone of overlying strata.