孔内深层强夯法(DDC)是一种深层地基处理方法,该方法先成孔至预定深度,然后自下而上分层填料强夯,形成高承载力的密实桩体和强力挤密的桩基土。本文主要阐述了DDC法在陕北地区某大型储油罐地基处理的应用,介绍了在施工过程中质量控制方面所做的工作,为在湿陷性黄土地区建造大型储油罐提供了工程经验。 Deep-hole dynamic compaction method (DDC) is a deep foundation treatment method, the method of forming a hole to a predetermined depth, and then bottom-up packing Dynamic compaction, the formation of high-bearing capacity of dense piles and strong compaction Pile foundation soil. This paper mainly expounds the application of DDC method in the foundation treatment of a large storage tank in the northern part of Shaanxi Province, introduces the work done in the quality control during construction, and provides engineering experience for constructing large storage tanks in collapsible loess area .