深部承压含卵石流沙层的成孔方法的研究与实践

Research and practice on pressure with deep sand layer of gravel into the hole

摘要: 在深部钻探施工中,经常遇到承压流沙层。目前,国内外未见任何关于承压水条件下的成孔方法。文中通过一个工程实例,论述了穿越承压流沙层的思路、技术要求、工艺方法及效果分析。

Abstract: Drilling in the deep, often encountered in confined sand layer, not seen any at home and abroad under the conditions of pressurized water into the hole method, this paper discusses the engineering example through a pressure sand layer through the ideas, the technical requirements, process methods and effect analysis.