使用高压水射流改善采掘工艺已成为采矿、建筑和采石工业部门日益关注的问题。相应地,在过去几年中,以水射流为主和以水射流为辅的钻采设备的试验研究工作也迅速扩展开来。事实上,这种新技术的发展是如此之快,以致有时难以确定其现状。何谓高压?依笔者之见,可按以下方式分类:1050公斤/厘米~2以下为低压,1400～2450公斤/厘米~2为中压,2800～4200公斤/厘米~2为高压。世界上各种岩石中可用低、中、高压水射流有效切割的分别占:1050公斤/厘米~2——7～8％、2450公斤/厘米~2—— The use of high-pressure water jets to improve the extraction process has become an issue of increasing concern to the mining, construction and quarrying industries. Accordingly, in the past few years, experimental research on drilling equipment mainly consisting of water jets and water jets has also been rapidly expanded. In fact, the development of this new technology is so fast that it is sometimes difficult to determine its status quo. What is the high pressure? According to the author’s opinion, according to the following classification: 1050 kg / cm ~ 2 for the following low pressure, 1400 ~ 2450 kg / cm ~ 2 for medium pressure, 2800 ~ 4200 kg / cm ~ 2 for high pressure. Available in a variety of rocks in the world, low, medium and high pressure water jet effective cutting of 1050 kg / cm ~ 2-7 ~ 8%, 2450 kg / cm ~ 2-