Equivalent plane strain model of stone column reinforced foundation

Stone column replacement of soft soil foundation construction method is more and used in water conservancy projects. On the one hand, stone has high permeability, which enhances dissipation capacity excess pore pressure; on other it a stiffness, reduces additional stress soil, therefore pressure. These two mechanisms work together to improve bearing soil. In previous plane strain transformation model column-soil, only permeability simply considered, while stiffness ignored. According research results, based principle genetic algorithm, this paper puts forward conversion models consider considers kinds action mechanism gravel pile at same time. The results finite element calculation show that considering columns are consistent with axisymmetric model.