目前全断面钻孔注浆设备大都采用风动潜孔锤式单臂多功能钻机，成本高、效率低、速度慢、污染大。青岛胶州湾海底隧道钻孔注浆工程充分利用三臂液压凿岩台车作业范围大、灵活性强、空气粉尘污染小、安全文明、液压冲击钻高效的技术优势及专业化的管理优势，使三臂液压凿岩台车在隧道施工中，不仅具备了快速开挖的技术，还在不良地质的全断面深孔注浆施工中具备了快速、优质、安全、高效的施工技术。

At present, pneumatic downthehole hammer type singleboom multifunction drills, which have such disadvantages as high cost, low efficiency, slow speed and heavy pollution, are generally used to drill the boreholes of fullface advance grouting. For the grouting borehole drilling in Jiaozhou Bay subsea tunnel in Qingdao, 3boom hydraulic rockdrilling jumbos are used due to their large working scopes, high flexibility, low dust pollution, high safety and civilization level, high efficiency of hydraulic impact drills and specialized management. 3boom hydraulic rockdrilling jumbos not only can achieve rapid blasting hole drilling in tunnel excavation, but also can achieve high speed, high quality, high safety and high efficiency borehole drilling in fullface deep hole advance grouting under poor geological conditions.