Study on Stability Control Mechanism of Deep Soft Rock Roadway and Active Support Technology of Bolt-Grouting Flexible Bolt

In order to study the stability control mechanism of deep soft rock roadway and active support technology anchor-grouting flexible bolt, this paper takes west wing transportation Yuandian No. 2 Coal Mine Huaibei Mining Co., Ltd., Huaibei, China as research background. By analyzing occurrence conditions failure characteristics surrounding structural mechanical properties combined with elastic–plastic superimposed arch theory analysis, superposition community theoretical model joint scheme “bolt (cable) + anchor net bolt shotcrete support” are proposed. The reliability is analyzed by FLAC 3D numerical simulation software field experiment. results show that maximum roof-to-floor convergence two-side only 30.7 mm 27.1 after adopting scheme, displacement variation within 7 mm, which can effectively maintain roadway. has a certain reference value for other similar roadways.