矿井深部围岩破碎巷道加固技术研究及应用

Research and application of mine deep surrounding rock broken roadway reinforcement technology

对矿井深部水平围岩破碎巷道的赋存条件、支护方式及其变形特点进行了综合分析,通过精心设计、科学组织,实施了扩修、锚注加固作业,经矿压观测,两帮围岩平均移近量不超过60 mm,巷道无明显变形,锚注加固取得了成功,节约了巷道维修费用,确保了矿井的安全生产,该联合支护方式适用于矿井深部大地压、软岩破碎巷道,具有广阔的推广应用前景。

The occurrence condition of mine deep level surrounding rock broken roadway, support and deformation features were analyzed, the expand and repair, bolting grouting reinforcement were put into practice by scientific design, the average displacement amount of two sides surrounding rock was no more than 60 mm, without obvious deformation of roadway, the technology saved the roadway repair cost, ensured the safe mining, the combined support is suitable for deep mine of large ground pressure and soft rock broken roadway, with wide prospect of application.