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水泥粉体深层喷射搅拌桩与干振碎石桩〔１〕、干振灰土桩等一样，也是处理松软地基土的一种有效方法。但与干振碎石桩等其他挤密型复合地基处理方法不同，水泥粉体深层喷射搅拌桩属于摩擦桩型。由于天然地基土对桩体的侧摩擦力和端阻力的共同作用，使复合地基的承载力大幅度提高。然而人们普遍认为，水泥粉体深层喷射搅拌桩法复合地基处理不能解决场地土的液化问题。本文通过工程实例和瑞雷波检测结果，证实了该方法处理的复合地基，除了承载力有较大幅度的提高外，地基土的抗液化能力也可以得到相应的加强。
Cement powder deep jet mixing piles and dry-vibration gravel pile [1], such as dry-lime-soil pile, is also an effective way to deal with soft soil. However, unlike dry crushed stone piles and other compaction composite foundation treatment methods, cement powder deep mixing mortar pile belongs to the friction pile. Due to the joint action of the lateral friction and the end resistance of the natural foundation soil to the pile body, the bearing capacity of the composite foundation is greatly increased. However, it is widely believed that the treatment of composite ground with deep mixing shotcrete method can not solve the problem of soil liquefaction. In this paper, through the engineering example and the Rayleigh wave test results, it is confirmed that the composite foundation treated by this method can be strengthened corresponding to the liquefaction resistance of the foundation soil, except that the bearing capacity is greatly improved.