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金属矿山 ›› 2010, Vol. 39 ›› Issue (5): 25-28.

• 专题综述 • 上一篇    下一篇

无底柱分段崩落法采场巷道变形破坏规律研究

 明建, 胡乃联   

  1. 北京科技大学
  • 出版日期:2010-05-15 发布日期:2010-11-09

University of Science and Technology Bejing

Ming Jian,Hu Nailian   

  • Online:2010-05-15 Published:2010-11-09

摘要: 无底柱分段崩落法采场巷道工程环境复杂多变,又受采动影响,巷压显现十分剧烈,特别是软破矿体采用该法开采时,巷道的变形破坏更加严重。结合国内几个软破矿体采场地压显现的特征,对无底柱分段崩落法采场巷道围岩变形机理进行了深入分析研究,得出地质性质、分布特征以及控制地压危害途径的相关结论。

关键词: 采场巷道, 地压显现, 无底柱分段崩落法

Abstract: The action of drift pressure with the pillarless sublevel caving method is very sever due to the complicated and changeable engineering environment and the influence of mining,especially in soft and fracture ore body.This paper analyzes the deformation mechanism of drift and rock in detail in non-pillar stope with pillarless sublevel caving methed,according to the underground pressure feature in several civil soft and fracture ore bodies.Then the relevant conclusions of geogical nature,distribution feature and the proposals to control underground presure are made.

Key words: Stope drift, Underground pressure action, Pillarless sublevel caving method