复杂地质条件下煤层大巷锚梁网支护技术研究

Technology Research on Wire Meshes Beam Supporting for Coal Tunnel Under Complex Condition

介绍了张集矿北区复杂地质条件下煤层大巷锚梁网索联合支护的试验情况,根据巷道特殊情况提出相应的支护方案,确定了锚梁网索支护参数;实践证明该巷道采用锚梁网索支护技术,既改善了巷道围岩的变形量,又保证了巷道快速掘进;不仅可以扩大锚梁网支护在该矿的应用范围,而且为确保矿井持续高产高效提供了技术途径。

The experiment of wire meshes beam supporting for coal tunnel under the complex condition on the north area of Zhangji Colliery are introduced, the correspond methods according to the special condition are provided, and ascertains the parameter of bolting and net supporting. The experiment indicats that applying the technology of wire meshes beam supporting in this tunnel, not only improved the distortion of surrounding rock, but also ensured the speed of digging. It enlarged the area of applying wire meshes beam supporting in this colliery, also provided the way for high yield and high effciency.