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现行锚注支护技术难以适用深部岩层巷道的某些复杂地质条件,因此,设计了一种新型可预爆钻注锚一体化锚杆,利用锚杆前端多段爆药段爆破作用,快速扩大注浆区域,形成超大厚度的围岩加固带,充分利用围岩的自撑能力保证巷道的长期稳定,并且迅速贯穿渗水区域并注浆成保护区域。
The current anchor-grouting support technology is difficult to apply some of the complex geological conditions of deep rock roadway. Therefore, a new type of pre-blasting drill anchor integrated design of the anchor, the use of the front end of the multi-stage blasting blasting effect, rapid expansion of the note Slurry area, the formation of super thick thickness of the surrounding rock reinforcement, make full use of the surrounding rock self-supporting ability to ensure the long-term stability of the roadway, and quickly penetrate the water area and grouting into protected areas.