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W.C.Maurer 于1968年在《凿岩新技术》一书中,指出冲击凿岩机效率比较高;Paone、Madsen 和 Bruce 于1969年在《可钻性研究》一文中确切地指出了在各种岩石结构中凿岩机的使用气压、推进力、凿岩速度之间的关系;Anderson 于1972年在《冲击式凿岩机的钎杆》一文中论述了过去50年中钎杆技术的发展,并陈述了有关设计、金属
WCMaurer pointed out in his book “Rock Drilling Techniques” in 1968 that impact rock drill efficiency is relatively high; Paone, Madsen and Bruce pointed out in their article “Drillability Studies” in 1969 that they are accurate in a variety of rock structures The relationship between the use of rock drills, the propulsion force and the speed of rock drilling; Anderson discussed the development of rod technology in the past 50 years in the article “Drill Rods for Impact Rock Drills” in 1972 and stated the design, metal