Safety Analysis Control Measures of Multiple Mining Soft Rock Roadways

In order to explore the failure characteristics and safety control measures of multiple mining soft rock roadway, and based on the fracture characteristics of mining soft rock roadway, drilling column and rock mechanics test results, FLAC3D is used to establish a numerical model to analyze the failure characteristics of the original support soft rock roadway under multiple mining, and the joint control measures of goaf filling and reinforcement support are proposed, field measurement and analysis of its treatment effect. The results show that: the failure of support is obvious, the vertical stress of mining face is transferred to the surrounding rock mass, and the stress concentration and deformation of the lower right side roadway are caused The filling of the goaf limits the stress concentration, displacement and plastic range of the surrounding rock to a certain extent, and the reinforcement support further strengthens the strength of the broken surrounding rock. The comprehensive treatment scheme of goaf filling and secondary reinforcement support has achieved good engineering results.