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本文系统介绍了潜孔锤反循环钻进技术工艺的原理,优点,并结合锦屏水电工程基础处理钻孔施工的特点与难点,对潜孔锤反循环钻进技术进行了可行性应用分析,并通过试验进行应用论证,阐明了该工艺的优越性。本文可为进一步研究潜孔锤反循环钻进及其应用途径拓展提供借鉴。
This paper systematically introduces the principle and advantages of DTH reverse drilling technology and combines the characteristics and difficulties of drilling construction in Jinping hydropower project foundation to analyze the feasibility and application of DTH reverse drilling technology. And through the application of demonstration test, illustrates the superiority of the process. This article can provide reference for further research on reverse circulation drilling of DTH hammer and its application.