贵州省水盘线高速公路发耳隧道围岩极其破碎,难以支护。本文改进并分析了新型全长锚固注浆锚索支护技术,在分析注浆锚索与围岩相互作用机理的基础上,结合该隧道的工程地质条件,进行典型软岩含煤地质条件下隧道锚注支护设计。通过现场监测分析,检验锚注支护运用效果并提出改进措施,使得隧道掘进顺利通过断层破碎带,提高了隧道掘进速度,降低了支护成本。该技术可为今后隧道掘进过程中遇到极易破碎大断层时的支护技术提供借鉴。 Guizhou Province Water Disk Express Tunnel ear tunnel extremely fragmented rock, it is difficult to support. Based on the analysis of the interaction mechanism between the grouting anchor and the surrounding rock and the engineering geological conditions of the tunnel, a new type of full-length anchor grouting technology for anchor and grouting has been improved and analyzed. Tunnel anchor injection support design. Through the on-the-spot monitoring and analysis, the application effect of anchor and grouting support is tested and improvement measures are put forward to make the tunneling pass smoothly through fault fracture zone, which improves tunneling speed and reduces support cost. The technology can provide a reference for the support technology in the future tunneling process when it is easy to crush large faults.