Studies on the percussive energy transfer of large diameter DTH hammers show that the percussive energy transfer is affected by weight proportion, diameter proportion of percussive piston and bit.

• 通过大量的试验研究发现，影响大直径潜孔锤冲击能量传递的因素可归纳为：冲锤与钻头体质量比；冲锤与钻头体直径比；