复杂空区群条件下碎裂残矿资源回收技术研究  

The technology of mining cataclastic remnant ore under complex goaf masses

作　　者：周科平[1,2] 雷涛[1,2] 

机构地区：[1]中南大学资源与安全工程学院,长沙410083 [2]湖南省深部金属矿开发与灾害控制重点实验室,长沙410083

出　　处：《有色金属科学与工程》2012年第3期1-5,共5页Nonferrous Metals Science and Engineering

基　　金：国家自然科学基金资助项目(51074178);国家"十二五"科技支撑计划资助项目(2012BAC09B00)

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.Due to the influence of goal 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 goal 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/GTS and Flac3D, the result of numerical calculation shows that the goal masses is mainly stability, but the collapse disasters are likely to happen in the tension zone, and 1^# shaft is faced the threaten of Ground Settlement. From the analysis of the stability and rock mechanics characteristics of goal 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.

关 键 词：空区群 残矿资源 回采方案 精细三维模型 

分 类 号：TD851[矿业工程—金属矿开采]