湖南某金属矿山地下采空区稳定性分析及其影响  

Stability analysis of mined-out region and its effect in a metal mine of Hunan

作　　者：刘永[1] 张志军[1] 贺桂成[1] 丁德馨[1] 

机构地区：[1]南华大学核资源与核燃料工程学院,湖南衡阳421001

出　　处：《有色金属（矿山部分）》2012年第5期23-26,共4页NONFERROUS METALS(Mining Section）

基　　金：国家自然科学基金项目(51004067);教育部重点科研基金项目(2011-126);环保部科研基金项目(监管1209;调查1204);教育部高校博士学科点专项科研基金项目(20104324120001);湖南省教育厅科研基金项目(10B091&11C1102)

摘　　要：湖南某金属矿山长期存在的采空区给地表居民带来巨大的安全隐患。通过建立该矿山地下采空区数值模拟计算模型,采用自编接口程序绘制了模型相关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分析研究。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。最后提出合理的采空区治理措施,保障后续开采工作顺利、安全地进行。Longtime existence of underground mined-out region in a metal mine of Hunan brings enormous security hidden trouble to the residents lived in ore area. The model of a mined-out region has been established and calculated by FLAC3D, then the displacement isopleths profiles of the model is obtained by self-compiled program, and the effect of mined-out region on ground subsidence has been analyzed. The analysis result shows that the roof deformation of the mined-out region has significant influence on the ground surface and measures must be carried out immediately. Finally, the rational measure for treating the mined-out region is given to ensure the safe operation of the follow-up mining.

关 键 词：采空区 FLAC3D 数值模拟 

分 类 号：TD325[矿业工程—矿井建设]