深部软岩应力集中带高强耦合支护技术研究与应用

针对深部应力集中带软岩巷道变形破坏严重，传统联合支护技术难以控制问题，结合鹤煤八矿-655 m水平南大巷返修工程实践，通过理论分析及现场观测的手段，提出设计了锚网梁索与注浆锚索高强耦合支护技术并进行了现场应用，得出锚网梁索与注浆锚索是具有锚网喷支护与注浆加固共同作用的一种耦合主动支护方式，可以改变围岩力学参数，提高围岩强度。工程实践表明:该支护方案可显著提高围岩的强度和承载能力，有效地控制了深部软岩巷道变形，支护效果明显。

Research and application of high-strength coupling supporting technology in deep stress concentration zone with soft rock

Aiming at the serious deformation and destruction of soft rock roadways in the deep stress concentration zone，and the traditional combined supporting technology was difficult to control，combined with the practice of the repair project of the -655 m level south roadway in the No.8 Coal Mine of Hebi Coal Company，through theoretical analysis and on-site observation，the design of anchor nets was proposed.The high-strength coupling supporting technology of beams and cables with grouting anchors had been applied in the field，and it was concluded that the anchors，beams and grouting anchors were a kind of coupling active supporting method that had the combined effect of anchoring，shotcreting and grouting.It could change the mechanical parameters of the surrounding rock and improve the strength of the surrounding rock.Engineering practice showed that the supporting scheme could significantly improved the strength and bearing capacity of surrounding rock，effectively control the deformation of the deep soft rock roadway，and the supporting effect was obvious.