综采工作面超前段破坏原因分析及控制技术

Failure reason and control technology of super front section in fully-mechanized working face

针对某矿150502工作面轨道巷超前段受支承压力及采动影响,巷道围岩变形严重、支护困难的问题,通过研究端头顶板的稳定性,利用补强机理,提出补打锚索结合超前液压支架对超前段加强巷内支护方案。现场实践表明:超前段围岩变形较小,保障了工作面回采工作的安全生产,为类似工作面超前支护技术提供了参考。

In this paper,taking 150502 working face of a mine as the engineering background,in view of the problem that the roadway surrounding rock deformation is serious and the supporting is difficult due to the influence of bearing pressure and mining in the super front section of the track gateway,combined with the geological conditions and other factors,through the stability study of the end roof and using the reinforcement mechanism,the supporting scheme of reinforcing the roadway with anchor cable and advanced hydraulic support was put forward.The field practice showed that the deformation of surrounding rock in the super front section is small and has good adaptability,which ensures the safe production of the working face,and provides a demonstration and reference for the advanced supporting technology of other working faces in this mine.