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在含丰富地下水的卵砾石层和基岩中施工 ,普遍缺乏高效可靠的施工工艺 ,针对基础施工中存在的问题 ,提出用高压气体驱动潜孔锤 ,用泥浆携带岩屑的双介质系统钻进工艺。介绍了该工艺的原理及特点 ,并通过国外进展情况和我国现有的技术储备探讨了该钻进工艺在我国研究应用的可行性。
For the construction of pebbly and bedrock containing abundant groundwater, there is a general lack of efficient and reliable construction techniques. According to the problems in foundation construction, the authors put forward that the use of high-pressure gas to drive the down-the-hole hammer and dual-media system with mud cuttings Process. The principle and characteristics of the process are introduced. The feasibility of the drilling technology in China is discussed through the progress of foreign countries and the existing technical reserves in our country.