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金属矿山 ›› 2020, Vol. 49 ›› Issue (06): 167-171.

• 采矿工程 • 上一篇    下一篇

分段空场嗣后充填采矿法集约化开采顺序优化研究

任卫东 范玉乾   

  1. 长沙有色冶金设计研究院有限公司,湖南 长沙 410019
  • 出版日期:2020-06-15 发布日期:2020-06-23
  • 基金资助:

    国家重点研发计划项目(编号:2016YFC0801606)

Study on Optimization of Mining Sequence in Intensive Mining with Sublevel Open Stope and Subsequent Filling

Ren Weidong Fan Yuqian   

  1. Changsha Nonferrous Metallurgy Design and Research Institute Co.,Ltd.,Changsha 410019,China
  • Online:2020-06-15 Published:2020-06-23

摘要: 某矿山是一个水文地质条件复杂,生产多年的老矿山,矿山采用空场法开采,多中段同时生产,采场多,生产效率低,时有采场顶板冒落等问题发生,严重影响企业的安全生产。为了解决这些问题,企业采用了分段空场嗣后充填采矿法,虽然大大改善了采场回采的安全,但矿山采用多中段生产,造成中段间相互影响,生产效率低,且存在潜在安全隐患,本研究在分段空场嗣后充填采矿法的前提下,采用数值模拟软件,依据摩尔—库伦破坏准则,通过对拟定的不同开采顺序采场回采进行数值模拟,分析不同开采顺序采场的应力及位移的变化情况,从而能选择适合矿山的开采顺序,为矿山实现集约化、规模化开采提供了依据,对矿山的安全、高效、经济的回采有至关重要的意义,也为类似矿山的开采提供了借鉴依据。

关键词: 分段空场法 , 嗣后充填 , 采矿法 , 集约化开采 , 开采顺序优化

Abstract:  A mine is an old mine with complex hydrogeological conditions and many years of production. It is mined by open stope method. Many middle sections are produced at the same time. There are many stopes and low production efficiency. Sometimes there are problems such as stope caving,which seriously affect the safety production of the enterprise. In order to solve these problems,the enterprise adopts the sublevel open stope followed by filling mining method. Although the safety of stope mining is greatly improved,the mine adopts the multi sublevel production,which causes the interaction between the middle sections,low production efficiency and potential safety risks. In this paper,on the premise of sublevel open stope followed by filling mining method,and according to the Moore Coulomb failure,the numerical simulation software is used to make numerical simulation on different mining sequences of the stopes. The change of stress and displacement of stopes in different mining sequences is analyzed,so that the mining sequence suitable for the mine can be selected,which provides a basis for the mine to realize intensive and large-scale mining. It is of vital significance for the safe,efficient and economic mining of the mine,and also for the mining of similar mines. The reference basis is provided for the similar mines.

Key words: Sublevel open-stoping method, Subsequent filling, Mining method, Intensive mining, Optimization of mining sequence