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现代矿业 ›› 2013, Vol. 29 ›› Issue (07): 37-39+55.

• 安全与环保 • 上一篇    下一篇

急倾斜煤层回采巷道矿压显现规律研究

徐健1,2,覃世福1,2,李小亮1,2   

  1. 1.外生成矿与矿山环境重庆市重点实验室(重庆地质矿产研究院);2.煤炭资源与安全开采国家重点实验室重庆研究中心
  • 出版日期:2013-07-15 发布日期:2013-08-22

Research on Mine Pressure Behavior Regularity of Mining Tunnel in Steep Coal Seam

Xu Jian1,2,Qin Shifu1,2,Li Xiaoliang1,2   

  1. 1.Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment,Chongqing Institute of Geology and Mineral Resources;2.Chongqing Research Center of State Key Laboratory of Coal Resources and Safe Mining
  • Online:2013-07-15 Published:2013-08-22

摘要: 基于四川某煤矿急倾斜煤层综采工作面回采巷道条件,结合巷道内支柱支护阻力以及巷道变形量的观测结果,分析了急倾斜煤层回采巷道的变形特征。得出以下结论:回风平巷围岩变形量比运输平巷围岩变形量大;围岩变形量随距工作面距离的减小而增加。

关键词: 急倾斜煤层, 综采工作面, 巷道变形, 围岩变形量

Abstract: Based on the condition of mining tunnel of steep coal seam fully-mechanized face in a coal mine in Sichuan province, combined with observation results of pillars' support resistance in tunnel and deformation of tunnel, deformation features of mining tunnel in steep coal seam were analyzed. The related results indicate that the surrounding rock mass deformation of return airflow tunnel is larger than haulage drift. Meanwhile, surrounding rock mass deformation increases with the distance to working face decreases.

Key words: Steep coal seam, Fully-mechanized face, Tunnel deformation, Surrounding rock mass deformation