Numerical Analysis of Composite Ground Formed by DDC Method

Abstract

Abstract: The composite ground of large diameter columns formed by Deep Dynamic Compaction (DDC) method is numerical analyzed by using commercial software ANSYS. The analytical results indicate that a good compatibility between the DDC formed columns and surrounding soils is demonstrated. The DDC formed composite ground belongs to a composite soil of semirigid and semiflexible subgrades. The compression modulus of surrounding soils has a significant impact on the bearing capacity of the composite foundations. The length of the column has less influence on the bearing capacity of the treated foundations.

Key words: DDC formed columns, composite ground, bearing capacity, finite element analysis

SUN Qingjuan, LIU Zengrong, LI Xiaolong. Numerical Analysis of Composite Ground Formed by DDC Method[J]. , 2014, 28(1): 68-71.

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Numerical Analysis of Composite Ground Formed by DDC Method

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