摘要
针对某铜矿深部复杂开采条件,为了确定合理的采场结构参数,基于SURPAC地质模型与FLAC3D数值模型转换原理建立了尽可能接近实际的三维数值模型,对高地应力、较不稳固围岩下的4种采场结构参数进行了模拟计算,对比各开采步骤、各位置矿岩、充填体中的应力、位移、塑性区分布特征,确定采场长度为矿体厚度、跨度为14m时稳定性最优。现场工程实践验证,推荐采场结构参数达到了安全、高效生产的目的。
In order to determine the reasonable stope structure parameters of a deep copper mine with complex geological condition,the three-dimensional numerical models were established as close as possible to the site based on the conversion principle between SURPAC geology models and FLAC3 Dnumerical models.Four kinds of stope structure parameters under high ground stress and unstable surrounding rock were simulated.Then the distribution characteristics of stress,displacement and plastic zone of each mining step,ore rock and filling body were compared.The results showed that the stope with 14 m of span and length of thickness would be the most stable.Finally,through the verification of site practice,the recommended parameters realized the safe and efficient mining.
出处
《矿业研究与开发》
CAS
北大核心
2016年第5期1-6,共6页
Mining Research and Development
基金
湖南省重大科技专项课题项目(2011FJ1003)
关键词
深部开采
高地应力
数值模拟
采场结构参数
Deep mining
High ground stress
Numerical simulation
Stope structure parameters
