大型地下铁矿覆岩移动破坏规律数值模拟  

Numerical Simulation on Overlying Strata Movement Damage Rule of Large Underground Iron Mines

作　　者：陈赞成[1,2,3] 余斌[1] 解联库[1] 于世波[1] 

机构地区：[1]北京矿冶研究总院,北京100160 [2]山东黄金集团有限公司,济南250101 [3]北京科技大学土木与环境工程学院,北京100083

出　　处：《有色金属工程》2015年第B05期101-106,共6页Nonferrous Metals Engineering

基　　金："十二五"国家科技支撑计划项目(2012BAB01B01)

摘　　要：通过对劳服铁矿的工程地质调查、矿岩力学性质试验,选取了表征矿山岩体工程质量的各种指标,获得了岩体工程分类结果的工程岩体质量级别。在系统的劳服铁矿开采现状、水文地质和采矿方法等研究的基础上,采用FLAC3D建立劳服铁矿地下开采的数值模型,通过三维数值模拟,揭示了劳服铁矿采用无底柱分段崩落采矿方法的力学环境,分析了劳服铁矿覆岩的应力、位移量、塑性区,其分析结果对劳服铁矿地下安全高效开采具有重要的指导意义。Through the engineering geological investigation and rock mass mechanical property test of Laofu Iron Mine, this paper selects various indicators of mine rock mass engineering quality, and acquires the engineering rock mass quality level based on the rock mass engineering classification results. On the basis of systematic studies on mining situation, hydrology geology and mining method of Laofu Iron Mine, the FLAC3D is used to establish the underground mining numerical model of Laofu Iron Mine. Through the 3D numerical simulation, this paper reveals the mechanical environment of Laofu Iron Mine with the non-pillar sublevel caving mining method, and analyzes the strata stress, displacement and plastic area of Laofu Iron Mine. The analysis results play an important guiding role in the safe and efficient underground mining of Laofu Iron Mine.

关 键 词：采矿工程 三维数值模拟 覆岩移动 围岩变形 采场暴露面积 岩体力学参数 

分 类 号：TD315[矿业工程—矿井建设]