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消除大厚度湿陷性黄土地基的湿陷性,降低压缩变形,提高承载力是工程界多年探求解决的一项技术难题。孔内深层强夯正是处理大厚度湿陷性黄土地基的有效方法之一。在国家重点工程宝鸡第二发电厂（一期装机４×３０万ｋＷ）大型冷却塔等大厚度湿陷性黄土地基处理中取得了满意的效
Elimination of collapsibility of collapsible loess foundation with large thickness, reduction of compressive deformation and improvement of bearing capacity are two technical problems that the engineering community has been seeking to solve for many years. Deep hole dynamic compaction is one of the effective ways to deal with large thickness collapsible loess foundation. Satisfactory results have been obtained in the treatment of large-thickness collapsible loess foundation such as the large-scale cooling tower of State Key Project Baoji No. 2 Power Plant (Phase I installed capacity of 4 × 300MW)