复杂空区群条件下碎裂残矿资源回收技术研究

来源期刊：有色金属科学与工程2012年第3期

论文作者：周科平 雷涛

文章页码：1 - 5

关键词：空区群；残矿资源；回采方案；精细三维模型

Key words：goaf masses ; remnant ore ; stoping scheme ; detailed 3D model

摘    要：由于受到空区群的影响，残矿资源的安全高效回收面临着开采难度大和安全性差的困难。针对朝不楞铁锌多金属矿山的工程实际，运用复杂空区群的现场精密探测和模型重构技术，建立了与实际情况一致的矿体和空区群复合的三维模型，采用3Dmine、Midas/GTS和Flac3D的耦合技术得到了精细的三维数值模型数值计算结果表明，目前空区群总体稳定，但在拉应力区域有可能发生冒落灾害，同时矿山一号竖井也受到地表沉降的威胁根据获得的数值计算结果，在对空区群的稳定性和力学特征进行分析的基础上，对该矿山的开拓运输系统进行了改造，提出了其残矿资源回收方案，有效保障了矿山残矿资源的安全回收，为今后类似问题提供了一种可行的思路。

Abstract: Due to the influence of goaf masses, it is difficult to mining remnant ore in the safe and effective method. According to the actual situation of Chaobuleng iron and zinc polymetallic ore, the technologies of goaf precision detection and model reconstruction were used to build the composite 3D model of ore and goaf masses, and the model consistent with the actual situation. Based on the Detailed 3D model built by the coupling technology of 3Dmine.Midas/CTS and Flac3D, the result of numerical calculation shows that the goaf masses is mainly stability, but the collapse disasters are likely to happen in the tension zone, and l^# shaft is faced the threaten of Ground Settlement. From the analysis of the stability and rock mechanics characteristics of goaf masses, the exploitation system and transit system are reconstruction, and get the remnant ore stoping scheme, which can provide the guarantee to mining the remnant ore.