【摘要】 冲击旋转钻进技术是一种高效的碎岩方法 ,近年来随着施工领域的拓宽取得了很大的进步。简要阐述了冲击旋转钻进技术的发展历程 ,着重介绍了一些冲击器新品种及其相关的钻进新工艺 ,分析了该项技术的发展趋势。更多还原

【Abstract】 The percussion-rotary drilling technique is one of the most effective drilling methods. It has made a great progress in recent years. This paper demonstrates developing history of the technique, introduces some new types of percussion-rotary drill and operating technology, and analyzes developing trend.更多还原