In order to research the surrounding rock control technology of deep soft rock roadway, the air returning cross-cut of Xinhu Coal Mine in Bozhou City was taken as an example to study the failure characteristics, roadway deformation mechanism and surrounding rock repair technology. Before the surrounding rock of the roadway is repaired, the roof of the roadway sink seriously, the floor heave is obvious, and the surrounding rock strength is low, showing characteristics of soft rock. Therefore, The composite support method of “ shotcreting + grouting anchor bolt + anchor bolt + grouting anchor cable + anchor cable ” is proposed by the full-section layer-double arch synergy reinforcement technology. The technical parameters of the scheme are determined by theoretical analysis, engineering analogy and engineering practice. The numerical simulation is adopted to verify the rationality of the layer-double arch collaborative reinforcement technology. And, the on-site monitoring results show that the deep soft rock roadway can be effectively controlled by the composite support scheme, which can provide reference value for other similar engineering.

为了研究深部软岩巷道的围岩控制技术，以zhou州市新湖煤矿回风横切面为例，研究其破坏特征，巷道变形机理及围岩修复技术。巷道围岩修复前，巷道顶板严重下沉，地基隆起明显，围岩强度低，具有软岩特征。因此，通过全断面层-双拱协同加固技术，提出了“喷浆+注浆锚杆+锚杆+注浆锚索+锚索”的复合支护方法。该方案的技术参数是通过理论分析，工程类比和工程实践确定的。通过数值模拟验证了层-双拱协同加固技术的合理性。现场监测结果表明，采用复合支护方案可以有效控制深部软岩巷道，为其他类似工程提供参考。