中文摘要：

矿山地下采空区的存在,给地表居民带来巨大的安全隐患。本文应用FLAC3D数值模拟软件建立了湖南某矿山地下采空区模型,进行了数值模拟计算,并采用自编接口程序,绘制了模型剖面位移等值线等图,进而对该采空区对地面沉降的影响进行了分析研究。分析结果表明,采空区顶板的变形对地表有较显著的影响,必须立即进行处理。文中最后还提出了合理的采空区处理措施,以保障后续开采工作顺利、安全地进行。

英文摘要：

Mined-out regions always bring enormous security hidden trouble to the residents lived in ore area. The model of a mined out region underground in a mine of Hunan has been established and calculated by FLACaD,the displacement isoplethes of profiles of the model is made by selgcompiled program, and the effect of mined-out region on ground subsidence has been analysized. The analysis result shows that the deformation of the roof of the mined out region has significant influence on the ground surface and measures must be carried out immediately. Finally, the rational measures for treating the mined-out region are given to ensure the smooth and safe operation of the follow-up mining.