潜孔锤钻进是空气钻进的一个分支。它是以压缩空气为动力和洗井介质,以冲击形式破碎岩石的一种钻探工艺。其效率一般比回转钻进高10～20倍。这种钻进工艺特别适用于漏水和干旱地区浅层非煤系硬岩的钻进。 DTH hammer drilling is a branch of air drilling. It is a drilling process that uses compressed air as a driving force and well washing medium to crush rock in the form of impact. Its efficiency is generally higher than the rotary drilling 10 to 20 times. This drilling process is particularly well suited for drilling shallow, non-coal-bearing hard rock in leaking and arid regions.