冲击迴转钻进方法在岩心钻探施工中，国外已用于生产多年，而且在不断地发展着。国内近几年来也在逐步扩大生产使用范围，继续完善冲击器结构和提高钻进工艺技术水平。特别是最近期间，又有许多单位开展了液动冲击迴转钻进方法的研究试验工作。现将有关情况作概略介绍，供参考。 Impact rotary drilling method In the core drilling construction, foreign countries have been used for many years of production, but also constantly developing. In recent years, China is also gradually expanding the scope of production and use, continue to improve the impactor structure and improve the drilling technology level. In recent years, in particular, many units have carried out research and experimental work on the method of hydraulic impact rotary drilling. Now the situation for a rough introduction for reference.