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现代矿业 ›› 2013, Vol. 29 ›› Issue (06): 23-26.

• 采选工程 • 上一篇    下一篇

动压巷道围岩控制数值模拟

镐振1,付义胜2   

  1. 1.河南煤业化工集团焦煤公司赵固二矿;2.河南煤业化工集团焦煤公司中马村矿
  • 出版日期:2013-06-17 发布日期:2013-06-26

Numerical Simulation on Surrounding Rock Controlling of Tunnel Influenced by Dynamic Pressure

Hao Zhen1,Fu Yisheng2   

  1. 1.Zhaogu No.2 mime, Jiaozuo Coal Industry Co., Ltd., Henan Coal & Chemical Industry Group Co., Ltd.;2.Zhongma Village Mine, Jiaozuo Coal Industry Co., Ltd., Henan Coal&Chemical Industry Group Co., Ltd.
  • Online:2013-06-17 Published:2013-06-26

摘要: 针对巷道受上方回采工作面影响的问题,采用数值模拟的方法,研究了在上方工作面回采过程中产生的超前(侧向)支承压力作用下,锚网索喷+U型钢支护巷道围岩的受力和变形情况。现场工程应用结果表明,受采动影响巷道两帮和顶底板的最大移近量分别为138 mm和105 mm,该支护方式可以提高围岩的自承能力,控制巷道变形。

关键词: 数值模拟, 动压, 围岩控制

Abstract: According to problem of tunnel influenced by above stope working face, stress and deformation situation of surrounding rock of tunnel, which was supported by bolt-mesh-anchor spray+U steel under effect of advance (side direction) bearing pressure generated during stoping process of above working face, were studied using numerical simulation method. Site engineering application results shows that the maximal convergence of two sides and roof and floor of tunnel influenced by mining are 138 mm and 105 mm, respectively. This support mode could improve self-supporting ability of surrounding rock and control tunnel deformation.

Key words: Numerical simulation, Dynamic pressure, Surrounding rock controlling