深部破碎岩层巷道支护技术研究及应用

Research and application of roadway supporting technology in deep fractured rock strata

本文针对深部破碎岩层巷道支护技术,结合工程实例,在简要阐述深部破碎软岩巷道变形破坏特征的基础上,提出深部破碎软岩巷道变形破坏的机理,在复杂巷道支护处理时,要尽量实现一次支护,采用多种支护相互联合的方式,可以大幅度增加支护效果。实践表明,采用"锚网索喷+U型钢支架+注浆"的联合支护技术,可有效控制巷道围岩的强烈变形,取得了良好支护效果,值得大力推广应用。

In this paper, the deep broken rock roadway supporting technology, combined with the engineering example, based on the description of the deformation characteristics of deep soft rock roadway is broken, the mechanism of deep crushing roadway in soft rock deformation and failure of the roadway in the complex processing, to try to achieve a support, using a variety of support the combination of the supporting method, can greatly increase the support effect. Practice shows that the combined support technology of ＂anchor net, cable spray ＋U steel support ＋ grouting＂ can effectively control the strong deformation of roadway surrounding rock and achieve good supporting effect, so it is worth popularizing.