煤炭工程 ›› 2014, Vol. 46 ›› Issue (4): 87-89.doi: 10.11799/ce201404030

• 研究探讨 • 上一篇    下一篇

岩体结构类型与巷道围岩稳定程度的相关性研究

牛少卿1,杨双锁2,李义1,3   

  1. 1. 太原理工大学
    2. 重庆大学煤矿灾害动力学与控制国家重点实验室访问学者
    3.
  • 收稿日期:2013-06-12 修回日期:2013-08-01 出版日期:2014-04-11 发布日期:2014-04-10
  • 通讯作者: 杨双锁 E-mail:shuangsuoyang@163.com
  • 基金资助:

    涵盖峰后大变形过程的巷道围岩与支护平衡规律及控制机理研究

The Correlation of Rock Mass Structure Type and the Stability of Surrounding Rock of Roadway

  • Received:2013-06-12 Revised:2013-08-01 Online:2014-04-11 Published:2014-04-10
  • Supported by:

    Study on the equilibrium principle of roadway surrounding rock & support and the stability control including the large deformation

摘要:

针对阳煤五矿后备区井底车场岩层厚度变化大、岩体结构多样的特点,从岩体结构分类出发,通过分析巷道的应力场特征和破坏区域分布特征研究不同岩体结构特征下巷道的稳定性。研究结果表明:同等条件下巷道稳定程度为整体结构>层状结构>块体结构>碎裂结构>散体结构;岩体结构尺寸是巷道围岩稳定性分级的一个重要指标;巷道围岩稳定性与岩体块度尺寸间的数学关系为(公式)。其研究成果对于巷道围岩分级以及巷道支护具有理论指导意义。

关键词: 岩体结构, 巷道, 围岩稳定性, 数值计算

Abstract:

According to coal mine reserve area bottom strata thickness change is big, the characteristic of diversity of rock mass structure, starting from the structure of rock mass classification, through the analysis of the stress characteristics and damage of roadway area distribution characteristics study of the stability of roadway under different rock mass structural characteristics. Research results show that the roadway stability under the same conditions for overall structure > layer structure > blocks > > rupture structure medium structure; Rock mass structure size of roadway surrounding rock stability classification is an important index; The stability of surrounding rock of roadway and the mathematical relationship between rock fragmentation size as (公式) . The research results for classification of surrounding rock of roadway and roadway support theory know what significance.

Key words: rock mass structure, roadway, stability of surrounding rock, numerical simulation