孔内深层强夯法(DDC法)在湿陷性黄土地区原油储罐地基处理中的应用

摘要

The down-hole dynamic compaction (DDC) is a deep treating method in foundation treatment, which can totally or partilly eliminate collapsibility of ground. In application with DDC method, design petroleum steel storage tank (5000~20000m3) subgrade treatment in several projects in north of Shaanxi. The inspection results indicate DDC method can totally eliminate collapsibility of ground and improve the characteristic value of subsoil bearing capacity significantly, which accumulate experience and make reference to similar projects.%孔内深层强夯法(down-hole dynamic compaction,简称DDC法)是一种深层地基处理方法,对湿陷性黄土可部分或全部消除湿陷性.应用DDC法,对陕北多个工程中的5000~20000m3储罐进行地基处理设计,实测结果表明该方法达到了提高承载力、完全消除湿陷性的设计目的,取得了良好的效果,为DDC法在陕北湿陷性黄土地区大型储罐地基处理工程实践积累了经验,为同类工程提供参考.