Stability control for soft and broken surrounding rock of crossed-roadway is one of the important contents of underground engineering support. Take the transformer substation in Hanzhuang coal mine in Shandong Province, China as a case study, deformation and failure mechanism of surrounding rock are analyzed by field monitoring and borehole imaging method. A finite element model under original support scheme is established by ABAQUS, and the rheological parameters of surrounding rocks are determined by back analysis method according to the field monitoring deformation data. Then, a partitioned anchor–grouting reinforcement technology is proposed and its supporting effect is studied by numerical simulation. Field application and deformation monitoring results show that the new support scheme can meet the requirement of stability control for soft and broken surrounding rock of crossed-roadways and has guiding significance for the similar projects.

穿越巷道软弱破碎围岩的稳定性控制是地下工程支护的重要内容之一。以山东省汉庄煤矿变电站为例，通过现场监测和井眼成像方法分析了围岩的变形破坏机理。利用ABAQUS建立了原始支护方案下的有限元模型，并根据现场监测的变形数据，采用反分析的方法确定了围岩的流变参数。然后，提出了一种分区锚固加固技术，并通过数值模拟研究了其支护效果。