Being a crucial factor in influencing the performance of Full Face Rock Tunnel Boring Machine (TBM), the cutterhead design is one of the key issues of TBM.

刀盘设计是全断面岩石隧道掘进机(TBM)的设计关键，是影响其掘进性能的决定性因素。

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YZX127 hydro hammer used for full face drilling is described with its structural characteristics, performance parameters and laboratory test results as well as the application prospects introduced.

介绍了用于全面钻进的YZX127型液动潜孔锤的结构特点、性能参数、室内岩样实钻试验效果，展望了其广阔的应用前景。

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