欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对大型贫铁矿采用的上向阶段嗣后充填采矿方法,提出超大采场开采的点柱式结构型式,同时开展了3种回采模式阶段嗣后充填采矿的可行性论证与采场结构参数的优化研究。针对司家营铁矿南区的工程和水文地质条件和充填体的力学参数,采用FLAC^3D数值分析软件,设计不同回采方案下的正交数值试验,建立了南区开采的优化模型,得到不同回采模式下的最佳采场结构参数。通过对采场稳定性评价,揭示了不同回采模式的优越性和不足,从而使采矿设计方案适用于复杂变化的矿山工程地质条件,为实现矿山安全高效开采打下了基础。
英文摘要：
According to the previous stage backfilling method used in the large and poor iron ore, point pillar structure for super stope was put forward. And feasibility demonstration and optimization study on stope structure parameters for 3 stage backfilling stoping models were carried out. Based on the engineering and hydrogeological conditions and mechanics parameters of the filling body in southern Sijiaying iron mine, orthogonal numerical tests under different stoping method were designed by FLAC3Dsoftware. Finally, the optimization model for mining in the southern area was established to receive the optimal stope structure parameters under different mining models. The stope stability evaluation revealed the advantages and disadvantages of different models, so then the mining design could apply to complex changes of engineering geological conditions in mines and provide foundation for safe and high-efficient mining.
同期刊论文项目
同项目期刊论文
期刊信息
位置：