特厚煤层掘巷支护防冲研究

 由于大多数的冲击矿压显现发生在巷道，针对某矿2502采区250203上工作面掘进期间大能量事件频繁发生，提出以围岩的强弱强结构控制机理为基础，从能量的角度分析了防治巷道型冲击的方法。本文通过FlAC3D有限元软件对250203上材料顺槽建模，研究了锚杆、锚索各参数不同时对巷道围岩变形控制的影响，确定了较好的支护参数。提供给一种加强支护保护区小结构强度的锚杆支护方案，为该矿厚煤层掘巷期间防止巷道型冲击提供了一些思路。

Thick Coal Seam Roadway Support Erosion Research

Since most of the impact of mine pressure appearance occurred in the tunnel in a mine, mining area of 2502 250203 working face excavation during high energy events occur frequently, puts forward to the surrounding rock strength strong structure control mechanism as the basis, from the view point of energy analysis of the control of impact method. Through the finite element software FlAC3D to the 250203 material trough modeling, anchor, anchor cable of each parameter to the roadway surrounding rock deformation control effects, confirmed better support parameters. To provide a strengthening support protection zone of small structural strength of the bolt support scheme, for the mine roadway driving roadway in thick coal seam is prevented during impact and provide some ideas.