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金属矿山 ›› 2009, Vol. 39 ›› Issue (11): 28-31+138.

• 采矿工程 • 上一篇    下一篇

金川二矿贫矿开采充填设计优化及数值分析

张梅花1,高谦1,2,翟淑花1,周冬冬1
  

  1. 1.北京科技大学;2.金属矿山高效开采与安全教育部重点实验室
  • 出版日期:2009-11-16 发布日期:2011-04-26

Optimization Design and Numerical Analysis of Excavating-filling Engineering for Lean Ore in Jinchuan No.2 Minefield

Zhang Meihua1,Gao Qian1,2,ZhaiI Shuhua1,Zhou Dongdong1   

  1. 1.University of Science and Technology;2.State Key Laboratory of High-Efficient Mining and Safety of Metal Mines
  • Online:2009-11-16 Published:2011-04-26

摘要: 针对金川二矿区1 250 m水平以上贫矿开采充填进行了有关设计优化及数值模拟的研究,根据该矿区实际开采充填情况,设计了9个开采充填方案,采用FLAC2D对各方案进行了数值模拟,从各方案对采场的稳定性、地表的沉降、贫矿顶板及竖井地表位移的影响等方面进行分析,从而选出最佳方案;并对最佳开采充填方案与现行开采充填方案进行数值模拟,对模拟结果做对比分析,揭示了贫矿开采对地表沉降、采场应力及竖井工程的影响。

关键词: 开采充填, FLAC, 设计优化, 数值分析

Abstract: For lean ores above 1 250 m level in Jinchuan No.2 Minefield, the optimization design and numerical analysis of excavating-filling engineering were studied.According to the practical excavating-filling projects, 9 project schemes were presented and the numerical analysis on each scheme is made by FLAC2D from the effect of each scheme on the stability, surface subsidence, displacements of lean ore roof and shaft of stope.Then an optimal one is determined.The optimal project and practical excavating-filling project were analyzed by the numerical analysis.The comparison of this result indicated the effect of lean ore mining on the surface subsidence, stress and shaft.

Key words: Excavating-filling, FLAC, Optimization design, Numerical analysis