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为了较为合理、定量地分析地下金属矿山采矿扰动影响范围及采矿扰动对地面构筑物的影响程度,结合花岭沟铁矿工程实例,提出了运用Micromine创建地质体真三维模型,采用六面体离散技术对地质体模型进行网格划分,通过耦合技术采用C语言编制转换程序,在FLAC3D中实现了地质体数值模型的重建,在此基础上分析了地下采矿扰动影响范围及对地表尾矿坝安全稳定性影响。研究结果表明:1)采用耦合技术能够创建出较为复杂的地质体三维力学计算模型;2)采用数值计算方法能够较为准确地圈定采矿影响范围;3)采用此项技术能够从定量的角度分析地下采矿扰动对地表构筑物的安全性影响。
In order to reasonably and quantitatively analyze the influence range of mining disturbance in underground metal mines and the influence degree of mining disturbances on the ground structures, combined with the example of Hua Linggou iron mine project, a real three-dimensional model of geological body was established by using Micromine, and the hexagonal discrete technique The body model is meshed, the conversion program is compiled by using C language through the coupling technology, and the reconstruction of geological body numerical model is realized in FLAC3D. Based on the analysis, the influence range of underground mining disturbances and the influence on the safety and stability of the tailings dam . The results show that: 1) the use of coupling technology can create a more complex three-dimensional mechanical calculation model of geological body; 2) the numerical calculation method can be more accurately delineated the scope of mining influence; 3) using this technology can quantitatively analyze the underground Impact of Mining Disturbance on the Safety of Surface Structures.