作者对巷道的切缝卸载技术进行了比较深入地研究,探讨了补孔方式及参数对卸载效果的影响,并运用数值分析方法对切缝前后的变形应力进行了分析。通过模型试验、数值分析和现场试验,表明爆破切缝卸载技术可缓解岩石压力、提高围岩的稳定性。 In this paper, the authors conducted a thorough study on the technology of roadway kerf unloading, discussed the influence of the ways and parameters of the hole repairing on the unloading effect, and analyzed the deformation stress before and after the kerf by numerical analysis. Through model test, numerical analysis and field test, blasting kerf unloading technology can relieve rock pressure and improve the stability of surrounding rock.